{"title":"Porous Substrate Primers","description":null,"products":[{"product_id":"everflex-wbp-primer-water-based","title":"Everflex Primer WBP","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor porous wall and floor substrates prior to tiling, levelling, or waterproofing, Everflex Primer WBP is a water-based, penetrating acrylic primer designed to seal the surface, enhance adhesion, and prevent blistering and pinholes in subsequent coatings.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cp\u003eEverflex Primer WBP penetrates porous building materials to form a sound, uniform surface. By sealing the substrate, it controls absorption to eliminate pinholes and surface blistering in self-levelling compounds and waterproofing membranes. It dries to a tack-free, translucent pale green film, letting installers easily identify primed areas and verify coverage before proceeding with subsequent installations.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 to 30 minutes cure time\u003c\/strong\u003e (at 23°C) — rapid drying window allows subsequent coatings or compounds to be applied quickly once dry to a translucent film.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6m² to 9m² per litre consumption\u003c\/strong\u003e — physical property consumption rate (with approximate application coverage extending from 5 to 10m² per litre depending on substrate porosity).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLess than 16g\/L VOC content\u003c\/strong\u003e — low-odour, non-toxic formulation that meets Green Star environmental criteria.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e10°C to 35°C application range\u003c\/strong\u003e — the required temperature envelope for safe film formation and curing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cp\u003eThis primer is suitable for internal and external walls and floors over a wide range of porous building substrates, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConcrete cured for a minimum of 28 days\u003c\/li\u003e\n\u003cli\u003e3:1 sand cement screeds or C-Bed\u003c\/li\u003e\n\u003cli\u003eMasonry and cement render cured for a minimum of 4 days\u003c\/li\u003e\n\u003cli\u003eMedium-density and compressed fibre-cement sheet\u003c\/li\u003e\n\u003cli\u003eCement sheeting, underlays, external weatherboard, and blue board\u003c\/li\u003e\n\u003cli\u003eJointing compound over plasterboard\u003c\/li\u003e\n\u003cli\u003eWet area plasterboard and Villaboard\u003c\/li\u003e\n\u003cli\u003eBrickwork and Hebel aggregate blocks\u003c\/li\u003e\n\u003cli\u003ePre-cast concrete once form release agents are completely removed or dissipated\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eSystem compatibility\u003c\/h3\u003e\n\u003cp\u003eEverflex Primer WBP is formulated for use with subsequent Adheseal-supplied systems, specifically:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eWaterproofing membranes:\u003c\/strong\u003e Everflex WPUV, Everflex HVUV, Everflex WPM Fast cure, and Everflex Aqua-Ban.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTile adhesives:\u003c\/strong\u003e Cement-based ceramic tile adhesives and grouts, including Gripset C-Lite, Gripset C-Mastic, RLA Unigrip, and RLA Mastic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLevelling compounds:\u003c\/strong\u003e Aftek Bulk Fill and Tru-Level F23 self-levelling compound.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not apply when temperatures are below 10°C or above 35°C.\u003c\/li\u003e\n\u003cli\u003eDo not apply on damp, wet, or contaminated substrates, if it is raining, or if rain is imminent.\u003c\/li\u003e\n\u003cli\u003eNot suitable for areas subject to rising damp or hydrostatic pressure; use \u003ca href=\"\/products\/everflex-vbs\"\u003eEverflex VBS\u003c\/a\u003e instead.\u003c\/li\u003e\n\u003cli\u003eNot designed to withstand foot traffic or remain as a exposed trafficable surface.\u003c\/li\u003e\n\u003cli\u003eLimited UV resistance; not designed for long-term UV exposure and must be overcoated.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and preparation\u003c\/h3\u003e\n\u003cp\u003eAll substrates must be structurally sound, dry, clean, and free of dust, oils, grease, curing compounds, form release agents, or friable material. Do not use solvents or acid etching to clean the subfloor. If mechanical preparation is required, use dry diamond grinding to achieve a roughened, open porous profile, then vacuum thoroughly.\u003c\/p\u003e\n\u003cp\u003eTo verify substrate porosity, dispense a water puddle the size of a 1-dollar coin onto the surface. If the water absorbs in under two minutes, the substrate is porous. If the puddle remains, the substrate is non-porous and requires a light grind or sand to ensure adhesion.\u003c\/p\u003e\n\u003cp\u003eApply Everflex Primer WBP by brush, roller, or spray, ensuring complete coverage. The primer must stay wet on the surface for at least 2 minutes to penetrate effectively. If the primer dries instantly upon application, reapply immediately.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"5L","offer_id":46349645840576,"sku":"PRIMEWBP\/5","price":48.26,"currency_code":"AUD","in_stock":true},{"title":"15L","offer_id":37551478931648,"sku":"PRIMEWBP\/15","price":113.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/everflex-wbp-water-based-primer-waterproofing-adheseal.jpg?v=1763706888"},{"product_id":"primer-g","title":"Mapei Primer G","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eWhen tiling over gypsum plaster, pre-cast gypsum panels, or anhydrite screeds, Primer G prevents the chemical reaction between substrate sulphates and cementitious adhesives. By isolating these incompatible materials, it stops the formation of ettringite crystals, which otherwise cause the tile adhesive or smoothing compound to de-bond and separate from the floor or wall.\u003c\/p\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003ePrimer G is a water-dispersion synthetic resin primer that dries to form a flexible, compact, shiny coating that consolidates the substrate surface. It regulates water absorption across uneven porous substrates, including cementitious renders, chipboard, cement fibre boards, and foamed concrete. \u003c\/p\u003e\n\u003cp\u003eWhen used under self-levelling compounds, this absorption control reduces the formation of pinholes and air bubbles while preventing the levelling pour from drying out too fast. When applying sprayable gypsum plasters, it slows water loss into the backing wall to prolong the workability window and help prevent shrinkage cracks.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-minute concrete drying time:\u003c\/strong\u003e Minimum wait window at +23°C and 50% relative humidity before applying smoothing compounds or adhesives over cementitious substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e30 to 60-minute gypsum drying time:\u003c\/strong\u003e Required cure window on gypsum-based substrates before tile installation or levelling application.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.08 to 0.15 kg\/m² consumption rate:\u003c\/strong\u003e Normal coverage window, varying based on the porosity and absorption of the substrate material.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e0 g\/l VOC content:\u003c\/strong\u003e Formulated to meet the EC1 Plus standard for very low emissions (under GEV EMICODE testing criteria), making it suitable for closed, unventilated indoor environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cp\u003ePrimer G is suitable for preparing internal walls and floors prior to subsequent installations:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTreating gypsum plasters, sprayed gypsum, pre-cast gypsum panels, and fibrous-gypsum panels before installing ceramic tiles with cementitious adhesives.\u003c\/li\u003e\n\u003cli\u003eOn anhydrite screeds before trowelling down cement-based adhesives or levelling compounds.\u003c\/li\u003e\n\u003cli\u003eBetween layers of self-levelling or thixotropic smoothing compounds once the first coat is completely dry.\u003c\/li\u003e\n\u003cli\u003eOn cementitious renders before applying gypsum-based smoothing compounds or plasters.\u003c\/li\u003e\n\u003cli\u003eOn gypsum walls as a fixative for wallpaper adhesives, reducing substrate absorption to simplify future wallpaper removal.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not use for external applications.\u003c\/li\u003e\n\u003cli\u003eDo not apply where rising damp is present.\u003c\/li\u003e\n\u003cli\u003ePrimer G does not waterproof gypsum substrates; it only reduces surface porosity and absorption.\u003c\/li\u003e\n\u003cli\u003eDo not apply onto magnesium substrates.\u003c\/li\u003e\n\u003cli\u003eDo not apply the product in a quantity that allows it to pool or form a thick surface film; dilute with clean water as appropriate for the absorption of the substrate.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and dilution\u003c\/h3\u003e\n\u003cp\u003eThe substrate must be clean, dry, and free from oils, grease, residual paint, and loose material. Repair cracks in concrete beforehand with Eporip or Epojet. Sandpaper anhydrite screeds before application. Dilute and apply as follows:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCeramic tiles on gypsum:\u003c\/strong\u003e Use neat (undiluted). Stir just before use and spread uniformly with a flat brush, roller, or spray. If the gypsum is particularly smooth and glossy, abrade the surface before priming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAnchoring coat for gypsum plasters:\u003c\/strong\u003e Dilute Primer G 1:2 with water. Apply sprayable plaster as soon as the primer is dry.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder self-levelling compounds on cementitious substrates:\u003c\/strong\u003e Dilute 1:1 with water and apply by brush, roller, or spray.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder self-levelling compounds on gypsum-based substrates:\u003c\/strong\u003e Use neat (undiluted).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBetween smoothing layers:\u003c\/strong\u003e Dilute 1:1 with water.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnder wallpaper adhesives:\u003c\/strong\u003e Dilute 1:3 with water.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Mapei","offers":[{"title":"25Kg","offer_id":43822341423296,"sku":"PRIMEG\/25","price":252.96,"currency_code":"AUD","in_stock":true},{"title":"5Kg","offer_id":46758688260288,"sku":"PRIMEG\/5","price":57.91,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/mapei-primer-g-water-based-gypsum-tile-adhesive-adheseal.png?v=1763706888"},{"product_id":"2001-primer","title":"Adheseal Primer 2001","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor prep work on porous substrates or metal surfaces prior to sealing, Adheseal Primer 2001 is a solvent-based reactive polyurethane primer that enhances bond strength and prevents corrosion. It provides a reliable bonding surface for polyurethane and hybrid sealants on challenging substrates, and acts as a rust inhibitor on scratched metal surfaces during automotive glass and windscreen replacements.\u003c\/p\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003ePrimer 2001 operates as an air-drying, reactive polyurethane liquid. When applied to porous materials like timber and masonry, the low-viscosity formula penetrates the surface to establish a secure chemical key for subsequent polyurethane and hybrid coatings. On metals, it seals the substrate to inhibit rust formation in areas where the protective coating has been scratched or compromised.\u003c\/p\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePorous substrates, including timber and masonry, to secure polyurethane and hybrid sealant adhesion.\u003c\/li\u003e\n\u003cli\u003eMetal surfaces, particularly during windscreen and automotive glass replacement, to inhibit rust.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConsumption of 50-150ml per square metre, depending on the porosity of the substrate, to ensure adequate surface saturation.\u003c\/li\u003e\n\u003cli\u003eApplication temperature range of 10-35 degrees Celsius to allow correct reaction and curing.\u003c\/li\u003e\n\u003cli\u003eViscosity of 15 seconds (Ford cup #4 @20 degrees Celsius), indicating a highly fluid liquid consistency that penetrates deeply into porous surfaces.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and clean-up\u003c\/h3\u003e\n\u003cp\u003eApply Primer 2001 using a clean brush or cloth. Uncured primer must be cleaned immediately with \u003ca href=\"\/products\/acetone\"\u003eacetone\u003c\/a\u003e or \u003ca href=\"\/products\/xylene\"\u003exylene\u003c\/a\u003e. Once the primer has cured, it cannot be dissolved by solvents and must be removed by mechanical means. Store the product in cool, dry conditions between 10-35 degrees Celsius.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"1L","offer_id":37551479980224,"sku":"PRIME2001\/1","price":59.51,"currency_code":"AUD","in_stock":true},{"title":"250ml","offer_id":46349645775040,"sku":"PRIME2001\/250","price":34.4,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/primer-2001-1l-pink-polyurethane-concrete-adheseal.png?v=1763706991"},{"product_id":"gripset-gp-general-purpose-primer","title":"Gripset GP Primer","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor porous building substrates where preparation is required before waterproofing or tiling, GP Primer consolidates the surface and stabilises porosity. It forms a high-adhesion bonding key across porous materials, ensuring that Gripset waterproof membranes and tile adhesives adhere reliably without premature water loss into the substrate.\u003c\/p\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003eGP Primer is a water-based general purpose primer that dries from a milky white liquid to a clear finish. It seals porous surfaces to prevent dust, rapid absorption, and surface suction from robbing moisture from overlying membranes, coatings, and adhesives. It is formulated to be compatible with the full suite of Gripset systems across both internal and external installations.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e30-minute dry time:\u003c\/strong\u003e Fast-drying window at 23°C and 50% relative humidity, allowing waterproofing or tiling work to proceed with minimal downtime. Cool or humid conditions will extend this window.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e8 to 10m² per litre coverage:\u003c\/strong\u003e Economical coverage rate per coat, helping estimating accuracy on large-scale masonry, screed, or concrete prep jobs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 to 2 coats:\u003c\/strong\u003e Single-coat application is standard for typical porous substrates, while two coats are required for highly porous or dusting surfaces like aerated concrete.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eConcrete and masonry:\u003c\/strong\u003e Suitable for cured concrete, concrete blocks, brickwork, and general masonry surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eScreeds and renders:\u003c\/strong\u003e Stabilises sand-cement screeds, renders, and aged screed surfaces.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAerated concrete:\u003c\/strong\u003e Consolidates highly porous and dusting surfaces including Hebel and aerated concrete blocks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSheeting and board:\u003c\/strong\u003e Prepares compressed fibre cement sheeting and plasterboard for waterproofing and tiling systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMoisture limits:\u003c\/strong\u003e Do not apply over damp surfaces, substrates with elevated residual moisture, or areas subject to rising damp. For damp or high-moisture substrates, use \u003ca href=\"\/products\/gripset-e60\"\u003eGripset E60\u003c\/a\u003e or Xpress H20 Primer Plus. Active moisture or rising damp must be treated with Gripset E60.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTemperature boundaries:\u003c\/strong\u003e Do not apply when surface or ambient temperatures are above 35°C or below 5°C.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWeather restrictions:\u003c\/strong\u003e Do not apply if rain is falling or imminent.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication purity:\u003c\/strong\u003e Must be applied neat. Do not dilute with water or solvent.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePreparation and application\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCure windows:\u003c\/strong\u003e Allow new concrete to cure for a minimum of 28 days, and screeds or renders to cure for at least 7 days before priming.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSurface cleanliness:\u003c\/strong\u003e Substrates must be clean, dry, smooth, and free from laitance, curing compounds, release agents, dust, oil, grease, wax, moss, algae, and existing coatings. Mechanical removal via grinding or abrasive blasting is required for structurally unsound layers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDefect remediation:\u003c\/strong\u003e Fill and level all pitted sections, voids, holes, and non-structural cracks prior to priming. Use \u003ca href=\"\/products\/gripset-11y\"\u003eGripset 11Y\u003c\/a\u003e enhanced repair mortar or RLA repair mortars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication method:\u003c\/strong\u003e Apply neat using a brush or medium nap roller over the entire area of the intended system. Highly porous or dusting surfaces like Hebel or aged screeds require two coats to stabilise the surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOvercoating:\u003c\/strong\u003e Ensure the primer is dry before applying any finishes. Install subsequent membranes or tile adhesives shortly after the primer dries to prevent site dust from contaminating the surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eClean up:\u003c\/strong\u003e Wash tools in water while the primer is still wet.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Gripset","offers":[{"title":"5L","offer_id":37551511240896,"sku":"PRIMEGRIPGP\/5","price":87.36,"currency_code":"AUD","in_stock":true},{"title":"15L","offer_id":37551511339200,"sku":"PRIMEGRIPGP\/15","price":190.51,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/gripset-gp-5l-primer-porous-seal-waterproofing-adheseal.png?v=1763708493"},{"product_id":"sika-primer-3-n","title":"Sika Primer-3 N Epoxy Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor sealing and bonding jobs on porous surfaces or metals, Sika Primer-3 N Epoxy Primer is the single-component, solvent-based primer required to prepare the substrate before applying Sikaflex, SikaHyflex, SikaBond, or Sikasil adhesives and sealants.\u003c\/p\u003e\n\n \u003ch3\u003eAdhesion promotion mechanism\u003c\/h3\u003e\n \u003cp\u003eThe primer functions as an adhesion promoter on porous substrates like concrete and on non-porous metals. This solvent-based epoxy resin compound is water-repellent and penetrates porous surfaces to establish a secure bonding path for the joint sealant. It is applied in a single pass with a clean brush or roller, drying quickly to minimise preparation downtime before sealing begins.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e30-minute minimum flash-off:\u003c\/strong\u003e The shortest allowable drying window at standard temperatures before applying the joint sealant to prevent solvent entrapment.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e8-hour maximum flash-off:\u003c\/strong\u003e The maximum open window to apply the sealant; if exceeded, the primed surface must be reassessed as adhesion performance will degrade.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e5 m² per litre yield:\u003c\/strong\u003e The coverage floor when preparing porous substrates (or 250 linear metres per litre) to calculate job requirements accurately.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e8 m² per litre yield:\u003c\/strong\u003e The coverage expectation on non-porous substrates (or 400 linear metres per litre).\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e+5 °C to +40 °C application range:\u003c\/strong\u003e The permitted air and substrate temperature window, provided the temperature remains at least 3 °C above the dew point to prevent condensation forming on the metal or concrete.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eMust be used within one month after opening the container.\u003c\/li\u003e\n \u003cli\u003eDiscard any primer that has gelled or separated.\u003c\/li\u003e\n \u003cli\u003eThis product is an adhesion promoter and is neither a substitute for correct surface cleaning nor a method to significantly improve weak, failing substrates.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eSubstrate preparation and application\u003c\/h3\u003e\n \u003cp\u003eSubstrates must be clean, dry, sound, and homogeneous. All oil, grease, dust, loose or friable particles, and cement laitance must be removed before application. Apply Sika Primer-3 N Epoxy Primer only once with a clean brush or roller. Tightly reseal the container immediately after each use. Clean all tools and application equipment immediately after use; once cured, the residual epoxy compound can only be removed mechanically.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sika","offers":[{"title":"1L","offer_id":45366810411200,"sku":"PRIMESIKA3N\/1","price":165.77,"currency_code":"AUD","in_stock":true},{"title":"250ml","offer_id":45366810443968,"sku":"PRIMESIKA3N\/250","price":71.45,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/sika-primer-3n-epoxy-sealant-concrete-metals-adheseal.png?v=1763711093"},{"product_id":"everflex-supaprime","title":"Everflex Polyurethane Supaprime","description":"\u003cdiv role=\"main\"\u003e\n  \u003cp\u003eFor porous building substrates where you need to secure a reliable, long-term bond before applying sealants, adhesives, or waterproofing membranes, Everflex Polyurethane Supaprime penetrates deeply to stabilise the surface. This single-part, rapid-curing polyurethane primer is formulated to prepare porous materials and prevent subsequent coating delamination.\u003c\/p\u003e\n\n  \u003ch3\u003eHow it works\u003c\/h3\u003e\n  \u003cp\u003eEverflex Polyurethane Supaprime uses a moisture-curing polyurethane mechanism with a very low Brookfield viscosity (30–60 cps) to sink deep into porous capillaries. By penetrating the substrate, it consolidates loose or dusty microscopic particles and forms a high-adhesion foundation. The primer dries quickly to a translucent amber film, resisting mould and mildew in hot and humid service environments.\u003c\/p\u003e\n\n  \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e5 to 10 m² per litre coverage:\u003c\/strong\u003e Consumption rate varies depending on substrate porosity, establishing your material estimation limits.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e10 to 15 minutes pot life:\u003c\/strong\u003e Rapid initial skinning requires prompt application once exposed to atmospheric moisture.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e30 to 60 minutes cure window (at 23°C):\u003c\/strong\u003e Allows fast overcoating once the film transitions from wet to tacky.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e30% to 34% solids content:\u003c\/strong\u003e Low-solids, low-viscosity formulation ensures maximum penetration rather than surface ponding.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n  \u003cp\u003eSuitable for internal and external applications over the following substrates:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eConcrete (cured for at least 28 days) and pre-cast concrete with release agents fully removed.\u003c\/li\u003e\n    \u003cli\u003e3:1 sand cement screeds, C-Bed, and masonry or render cured for at least 4 days.\u003c\/li\u003e\n    \u003cli\u003eCement sheeting, underlay, external weatherboard, and blue board.\u003c\/li\u003e\n    \u003cli\u003eWet area plasterboard and Villaboard.\u003c\/li\u003e\n    \u003cli\u003eTimber flooring, including Type A structural plywood (PAA JAS-ANZ).\u003c\/li\u003e\n    \u003cli\u003eBrickwork and Hebel aggregate blocks.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eSystem compatibility\u003c\/h3\u003e\n  \u003cp\u003eFormulated as a dedicated bonding agent for:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAdheseal Polyurethane Sealants:\u003c\/strong\u003e PU15, PU25, PU240, and PU50.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eMS Sealants:\u003c\/strong\u003e Hi-Flex MS range.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eSilicone Sealants:\u003c\/strong\u003e S100, N40, and N70.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eEverflex Membranes:\u003c\/strong\u003e WPUV, HVUV, WPM Fast cure, and Aqua-Ban.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eLimitations\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDo not apply when temperatures are below 10°C or above 35°C (physical properties indicate a raw material application limit of 5°C to 35°C).\u003c\/li\u003e\n    \u003cli\u003eDo not apply when application humidity is 85% or higher.\u003c\/li\u003e\n    \u003cli\u003eDo not apply on damp, wet, or contaminated substrates, if it is raining, or if rain is imminent.\u003c\/li\u003e\n    \u003cli\u003eLimited UV resistance; not designed for long-term UV exposure and must be overcoated.\u003c\/li\u003e\n    \u003cli\u003eNot suitable for areas subject to hydrostatic pressure or rising damp. For these areas, \u003ca href=\"\/products\/everflex-vbs\"\u003eEverflex VBS\u003c\/a\u003e or \u003ca href=\"\/products\/megapoxy-h\"\u003eMegapoxy H\u003c\/a\u003e is recommended.\u003c\/li\u003e\n    \u003cli\u003eDo not use solvents or acid etching to clean the subfloor prior to priming.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eApplication\u003c\/h3\u003e\n  \u003cp\u003eTo verify if the substrate is porous, dispense a puddle of water the size of a 1-dollar coin onto the surface. If the water absorbs in less than two minutes, the substrate is porous. If the puddle remains, the substrate is non-porous.\u003c\/p\u003e\n  \u003cp\u003eAll surfaces must be structurally sound, dry, clean, and free of dust, oils, grease, curing compounds, and flaking material. If mechanical preparation is required, prepare the floor using dry diamond grinding to achieve a roughened, open porous surface, then vacuum thoroughly. Apply the primer by brush or roller, ensuring the primer stays wet on the surface for 2 minutes. Exceptionally porous substrates may require a second coat of Primer 2001. Allow 60 minutes for curing before applying coatings or compounds over the tacky, non-wet film.\u003c\/p\u003e\n\n  \u003ch3\u003eClean up\u003c\/h3\u003e\n  \u003cp\u003eClean tools and wet spills immediately with \u003ca href=\"\/products\/acetone\"\u003eAcetone\u003c\/a\u003e (or Xylene as specified by physical properties). Cured primer must be removed by mechanical means.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"Default Title","offer_id":45660053274816,"sku":"PRIMESUPA\/1","price":59.51,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/everflex-supaprime-pu-primer-waterproofing-adheseal.png?v=1763711642"},{"product_id":"silcor-primer-bs","title":"Silcor Primer BS","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor structural waterproofing jobs requiring SILCOR polyurethane-based membranes, Silcor Primer BS establishes the critical physical bond to the substrate. This fast-drying, single-pack modified polyurethane primer replaces Aquagard M Clear Primer, securing adhesion across key construction substrates before membrane application.\u003c\/p\u003e\n\n \u003ch3\u003eWhat it does\u003c\/h3\u003e\n \u003cp\u003eSilcor Primer BS penetrates and seals porous substrates to promote maximum adhesion for subsequent polyurethane coatings. The fast-drying resin system develops a water-resistant film quickly after application. This resistance protects the prepared concrete or masonry structure from water damage if wet weather interrupts the installation sequence before the waterproof membrane is applied. It also maintains its ability to promote adhesion when applied in cold weather conditions.\u003c\/p\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cp\u003eThe primer is formulated for application on rigid, structurally sound construction substrates, including:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eIn-situ concrete slabs, concrete toppings, and off-form concrete\u003c\/li\u003e\n \u003cli\u003eConcrete masonry and brickwork\u003c\/li\u003e\n \u003cli\u003eShotcrete and cement render\u003c\/li\u003e\n \u003cli\u003ePre-cast concrete panels and light-weight foamed concrete\u003c\/li\u003e\n \u003cli\u003eCompressed fibre cement sheet\u003c\/li\u003e\n \u003cli\u003eMetal\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eMaximum 5% substrate moisture:\u003c\/strong\u003e Silcor Primer BS is restricted to substrates at or below 5% moisture content. For damp substrates with moisture levels up to 10%, you must use Silcor Primer BW Clear or Epocote F100W Clear instead.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e30 to 60 minutes drying time:\u003c\/strong\u003e Fast-drying window at 20°C allows installers to reach a tack-free state quickly, minimizing down-time before membrane application.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e0.3 kg\/m² minimum coverage rate:\u003c\/strong\u003e The required application floor (equivalent to 0.3 litres\/m²) to ensure adequate substrate sealing and bond performance.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e24-hour overcoat window:\u003c\/strong\u003e The primed surface must be coated with the selected SILCOR membrane within 24 hours. If missed, the surface requires a \u003ca href=\"\/products\/xylene\"\u003eXylene\u003c\/a\u003e wipe and repriming at 0.15 kg\/m²; if left past 72 hours, the primer must be fully removed by diamond grinding.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e25 MPa minimum concrete strength:\u003c\/strong\u003e Concrete substrates must meet this structural grade and be moist-cured as required by AS 3600 before priming.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cp\u003eDo not apply Silcor Primer BS to substrates with a moisture content exceeding 5%. Detailing according to the NCC, AS 4654.2 (external above ground), and AS 3740 (internal wet areas) must be completed before priming starts. Any applied primer left uncoated for more than 72 hours cannot be recoated or recovered; it must be completely removed by diamond grinding down to the base substrate and re-primed.\u003c\/p\u003e\n\n \u003ch3\u003eInstallation\u003c\/h3\u003e\n \u003cp\u003eEnsure all substrates are smooth, clean, and dry. Completely remove all dust, laitance, loose matter, oil, curing compounds, and form release agents. Concrete must be aged 14 to 28 days depending on slab thickness and the specific primer system. Apply one coat directly from the container using a brush, roller, or spray. Allow the coating to become completely tack-free before applying the polyurethane membrane.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"GCP","offers":[{"title":"Default Title","offer_id":46292351910080,"sku":"PRIMESILCORBS\/17","price":299.29,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/SilcorPrimerBS.png?v=1754479980"},{"product_id":"ardex-multiprime","title":"Ardex Multiprime Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor porous substrates including CFC sheet, concrete, masonry, and jointing compound over plasterboard, ARDEX Multiprime prepares the surface to improve the adhesion of subsequent approved ARDEX products. This water-based liquid primer dries quickly in both internal and external applications, providing a reliable bond interface across varying substrate porosities.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eMultiprime penetrates porous substrates to bind residual fine dust and equalise suction. By regulating the absorption rate of the surface, it prevents subsequent screeds, renders, or adhesives from losing water too rapidly into the substrate, preserving their strength and curing characteristics. The primer cures to a tough film with a minimum tensile strength of 5.03 MPa and a Shore Hardness A rating of 90, establishing a high-strength mechanical key on porous materials like autoclaved aerated concrete (AAC), screeds, and concrete blocks.\u003c\/p\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eCFC sheet:\u003c\/strong\u003e Seals the fibrous surface to ensure consistent adhesive contact.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eJointing compound over plasterboard:\u003c\/strong\u003e Equalises the differing absorption rates between the paper face and the gypsum compound.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eConcrete and screeds:\u003c\/strong\u003e Prevents rapid water loss from overlying repair mortars, levelling compounds, or tile adhesives.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMasonry, concrete blocks, and AAC:\u003c\/strong\u003e Shuts down high-suction substrates (AAC requires a second coat of Multiprime to completely seal the surface).\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e15 to 30 minutes drying time:\u003c\/strong\u003e Quick window at 23ºC and 50% relative humidity to keep the installation moving; drying times will extend on highly porous substrates or in cooler temperatures.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e8m² to 9m² coverage:\u003c\/strong\u003e Total coverage yield per 15L pail based on a two-coat application, varying with substrate porosity and application technique.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e5.03 MPa tensile strength:\u003c\/strong\u003e High cohesive bond performance to ensure the cured primer layer resists shear forces under stress.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e10ºC to 35ºC application range:\u003c\/strong\u003e The critical temperature window for both the ambient air and the substrate to ensure proper film formation.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDo not apply if ambient or substrate temperatures are below 10°C or above 35°C.\u003c\/li\u003e\n \u003cli\u003eDo not add water or solvents to the product.\u003c\/li\u003e\n \u003cli\u003eDo not apply if rain is imminent.\u003c\/li\u003e\n \u003cli\u003eDo not use on concrete or masonry with moisture levels exceeding 80% relative humidity (tested to ASTM F2170) or 15g\/m²\/24hrs moisture vapour emission rate (tested to ASTM F1869). For these wet conditions, a minimum of two coats of ARDEX WPM 300 (HydrEpoxy) must be used.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eInstallation\u003c\/h3\u003e\n \u003cp\u003eRemove all dirt, dust, curing compounds, oils, grease, surface sealers, existing coatings, and other contaminants before applying. Prepare the surface to ensure it is clean, dry, sound, and free from sharp edges. Damaged concrete between 2mm and 30mm deep should be repaired with ARDEX A 46 before priming. Spalling concrete must be treated using the ARDEX Concrete Repair range, such as ARDEX BR 345.\u003c\/p\u003e\n \u003cp\u003eShake the container thoroughly before use. Apply evenly with a brush, roller, or sponge to the prepared substrate. Ensure the primer is completely dry before applying any subsequent ARDEX products. Clean all application tools and equipment with water and detergent before the primer dries; cured material requires mechanical removal.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Ardex","offers":[{"title":"Default Title","offer_id":46780405514432,"sku":"PRIMEARDMULTI\/20","price":301.48,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/ardex-multiprime.png?v=1758241686"}],"url":"https:\/\/adheseal.com.au\/collections\/porous-substrate-primers.oembed","provider":"Adheseal","version":"1.0","type":"link"}