{"title":"Prime the Surface","description":"\u003cp\u003ePrepare porous or non-porous substrates for the next layer in the tiling system.\u003c\/p\u003e\u003cp\u003eChoose tile primers and bonding agents before waterproofing or tile installation, as required by the system.\u003c\/p\u003e","products":[{"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":"mapei-eco-prim-t-plus","title":"Mapei Eco Prim T Plus Primer","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor interior floor preparation where levelling compounds or cementitious adhesives must bond reliably to both absorbent and non-absorbent surfaces, Eco Prim T Plus Primer establishes a high-adhesion keyway. This solvent-free acrylic resin-based primer in water dispersion prepares challenging substrates—including very compact concrete, old adhesive residues, non-porous ceramic tiles, and moisture-stable timber—to prevent debonding and levelling failures.\u003c\/p\u003e\n\u003ch3\u003eHow it works\u003c\/h3\u003e\n\u003cp\u003eEco Prim T Plus Primer forms a flexible, water-resistant film that bridges the gap between the substrate and the subsequent smoothing compound or mortar. When applied to porous surfaces like cementitious renders or gypsum, it regulates substrate absorption to prevent the levelling compound from drying out too quickly. On non-absorbent surfaces like terrazzo, ceramic, or natural stone, it provides the mechanical grip necessary for cementitious materials to adhere. It also functions as a bonding aid over non-sanded epoxy or polyurethane moisture vapour barriers, such as Primer MF or \u003ca href=\"\/products\/mapeproof1k-10\"\u003eMapeproof 1K Turbo\u003c\/a\u003e, provided the subsequent levelling layer is kept under 10 mm in thickness.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e0.10 to 0.20 kg\/m² consumption:\u003c\/strong\u003e Coverage rate varies within this range depending on the porosity of your substrate and the application method.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e15 to 40 minute drying times:\u003c\/strong\u003e Rapid initial drying of 15 to 20 minutes on concrete and wood, and 30 to 40 minutes on non-porous ceramic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2 to 5 hour window before covering:\u003c\/strong\u003e Wait 2 to 3 hours over concrete or wood, and 4 to 5 hours over ceramic before applying adhesives or smoothing compounds. Do not wait longer than 24 hours.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e42% dry solids content:\u003c\/strong\u003e High-solids fluid liquid formulation (density of 1.02 g\/cm³) that delivers consistent film build by brush or roller.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eASTM D 1308-87 compliance:\u003c\/strong\u003e Meets the standard for resistance to urine, making it suitable for specialized commercial floor installations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAbsorbent substrates:\u003c\/strong\u003e Cementitious renders, concrete floors, gypsum, anhydrite, wood, marine plywood, and chipboard.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNon-absorbent substrates:\u003c\/strong\u003e Existing ceramic tiles, terrazzo, natural stone, and water-resistant old adhesive residues.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBarrier consolidation:\u003c\/strong\u003e Substrates waterproofed or consolidated with Primer MF or Mapeproof 1K Turbo, where the surface has not been sprinkled with sand.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInterior use only:\u003c\/strong\u003e Apply Eco Prim T Plus Primer only on internal flooring.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNo rising damp:\u003c\/strong\u003e Do not apply on substrates subject to rising damp or hydrostatic pressure. Unbonded screeds over light-weight concrete or bare ground must have a vapour barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTimber stability:\u003c\/strong\u003e Apply only on moisture-stable wood and timber substrates.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSubstrate exclusions:\u003c\/strong\u003e Do not use on magnesium substrates; use Primer EP or Mapeprim SP instead.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and dilution\u003c\/h3\u003e\n\u003cp\u003eEnsure all substrates are uniformly dry, sound, and free of dust, loose particles, paint, wax, oil, rust, or other bond-inhibiting contaminants. Apply the primer using a brush or roller. Dilute the primer 1 to 2 with water when applying to absorbent cementitious or anhydrite surfaces. Apply undiluted on non-porous surfaces, including existing ceramic tile, natural stone, wood, and water-resistant adhesive residues. For applications over unsanded Primer MF or Mapeproof 1K Turbo moisture barriers, apply Eco Prim T Plus Primer undiluted once the barrier is dry (2 to 4 hours) and strictly within 24 hours of the barrier application.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Mapei","offers":[{"title":"20Kg","offer_id":43822339489984,"sku":"PRIMEECOT\/20","price":332.45,"currency_code":"AUD","in_stock":true},{"title":"5Kg","offer_id":46758588416192,"sku":"PRIMEECOT\/5","price":103.16,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/mapei-eco-prim-t-plus-adhesive-primer-concrete-adheseal.png?v=1763706888"},{"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":"gripset-op-primer","title":"Gripset OP Primer","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor waterproofing and tiling installations where adhesion to metal flashings, rigid PVC leak control flanges, ceramic tiles, or smooth concrete is required, OP Primer provides a solvent-free bonding bridge. It establishes a secure grip on difficult, non-porous surfaces to prevent Gripset membranes and tile adhesives from peeling or de-bonding over time.\u003c\/p\u003e\n\u003ch3\u003eHow it builds adhesion\u003c\/h3\u003e\n\u003cp\u003eOP Primer dries to a textured, non-tacky finish that creates a mechanical key on smooth substrates. This surface texture gives the subsequent membrane, tile adhesive, or polymer coating a high-friction physical bond, bypassing the need for aggressive solvent-based primers or hazardous etching chemicals. The water-based formulation is low-VOC and dries to a distinct blue colour, allowing installers to easily verify full, uniform coverage across the substrate.\u003c\/p\u003e\n\u003ch3\u003eSubstrate compatibility\u003c\/h3\u003e\n\u003cp\u003eThis primer is formulated for application over dry, interior and exterior substrates, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMetal flashings and waterstops used in waterproofing applications\u003c\/li\u003e\n\u003cli\u003eConcrete and glass reinforced concrete\u003c\/li\u003e\n\u003cli\u003eExisting ceramic tiles and natural stone\u003c\/li\u003e\n\u003cli\u003eCompressed fibre cement sheeting, including James Hardie Scyon Secura external and internal flooring\u003c\/li\u003e\n\u003cli\u003eRigid PVC leak control flanges, waterstops, and pipe penetrations\u003c\/li\u003e\n\u003cli\u003eApproved polymer coatings\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDo not use over damp substrates, substrates with elevated residual moisture, or areas subject to rising damp and active moisture (treat these areas with \u003ca href=\"\/products\/gripset-e60\"\u003eGripset E60\u003c\/a\u003e instead).\u003c\/li\u003e\n\u003cli\u003eDo not use for priming areas subject to rising moisture or negative hydrostatic pressure.\u003c\/li\u003e\n\u003cli\u003eNot suitable for immersed applications.\u003c\/li\u003e\n\u003cli\u003eOP Primer is not a substitute for a mandatory waterproof membrane system when tiling over existing tiles in internal or external wet areas; it must be covered with an approved under-tile membrane.\u003c\/li\u003e\n\u003cli\u003eNot suitable for applications where solvent-based adhesives, coatings, or paints are applied directly over the cured primer.\u003c\/li\u003e\n\u003cli\u003eDo not apply when ambient or surface temperatures are below 5°C or above 35°C.\u003c\/li\u003e\n\u003c\/ul\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 formulation (at 23°C and 50% relative humidity) to minimise waiting times before overcoating.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1 Litre per 10m² minimum coverage:\u003c\/strong\u003e The required application rate on smooth, non-porous surfaces to ensure consistent adhesion performance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e12-month shelf life:\u003c\/strong\u003e Keep stored at room temperature, off concrete floors, and out of direct sunlight and freezing conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eApplication and preparation\u003c\/h3\u003e\n\u003cp\u003eAll surfaces must be clean, structurally sound, dry, and free of dirt, dust, oils, release agents, laitance, curing compounds, and existing coatings. Unsound layers must be mechanically removed by grinding or abrasive blasting. Point masonry surfaces flush and fill any voids, holes, or non-structural cracks with \u003ca href=\"\/products\/gripset-11y\"\u003eGripset 11Y\u003c\/a\u003e enhanced repair mortar before priming.\u003c\/p\u003e\n\u003cp\u003eApply OP Primer neat. Do not dilute. Apply one coat by brush or medium nap roller until full coverage is achieved. The primer must be completely dry and tack-free before applying finishes. To avoid surface contamination, apply Gripset membranes, tile adhesives, or approved polymer coatings shortly after the primer has dried. Clean tools in water while the primer is still wet; dried product requires mechanical removal or solvent treatment.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Gripset","offers":[{"title":"5 litres","offer_id":40294686884032,"sku":"PRIMEGRIPOP\/5","price":160.32,"currency_code":"AUD","in_stock":true},{"title":"15 litres","offer_id":40294922944704,"sku":"PRIMEGRIPOP\/15","price":283.36,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/gripset-op-15l-solvent-free-waterproofing-adheseal.png?v=1763709693"},{"product_id":"rla-universal-primer","title":"RLA Universal Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor preparing floors prior to tiling or self-levelling, RLA \u003ca href=\"\/products\/rla-primer-rendergrip-a\"\u003eUniversal Primer\u003c\/a\u003e provides a rapid-drying, solvent-free acrylic bond coat over both absorbent and dense surfaces. It creates a secure key for cement-based ceramic tile adhesives and levelling compounds over substrates including water-based painted surfaces, burnished concrete, ceramic tiles, and liquid waterproofing membranes.\u003c\/p\u003e\n\n \u003ch3\u003eWhat it does\u003c\/h3\u003e\n \u003cp\u003eThis water-based acrylic primer seals porous subfloors to prevent rapid water loss from levelling compounds, and provides an adhesion key on dense, non-porous subfloors. It dries to a tack-free, transparent film that accepts subsequent cementitious toppings. The formulation is low-VOC, solvent-free, and cleanable with water immediately after application.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e30 minutes to 1 hour drying time:\u003c\/strong\u003e Fast-drying acrylic formulation (tested at 23°C) that allows subsequent floor levellers or tile adhesives to be applied quickly, though cold conditions will extend this window.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e5 to 10m² per litre coverage:\u003c\/strong\u003e Coverage yields vary depending on the absorbency of the concrete or tile substrate.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1:2 to 1:3 dilution ratios:\u003c\/strong\u003e Economical water dilution for porous subfloors (1 part primer to 2 parts water, or 1 to 3 for highly porous concrete) while non-porous substrates require neat, undiluted application.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e75% relative humidity moisture limit:\u003c\/strong\u003e For concrete subfloors exceeding 75% RH when tested via the ASTM F2170 in-situ probe method, \u003ca href=\"\/products\/rla-moisture-seal\"\u003eRLA Moisture Seal\u003c\/a\u003e must be applied instead of this primer.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cp\u003eSuitable for internal subfloors including:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003ePorous substrates and highly absorbent concrete.\u003c\/li\u003e\n \u003cli\u003eNon-porous substrates such as burnished concrete and liquid waterproofing membranes.\u003c\/li\u003e\n \u003cli\u003eSound ceramic tiles and existing water-based painted surfaces.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApplication steps\u003c\/h3\u003e\n \u003cp\u003eTo determine if a substrate is porous or non-porous, puddle a 10-cent coin-sized drop of water on the surface. If absorbed in under two minutes, treat as porous. If the puddle remains, treat as non-porous.\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePorous substrates:\u003c\/strong\u003e Dilute 1 part primer with 2 parts clean water. Apply by roller or brush. Extremely porous concrete may require a second coat diluted 1 part primer to 3 parts water. Allow 30 minutes to cure.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNon-porous substrates:\u003c\/strong\u003e Apply neat and undiluted in an even layer using a roller or brush. Extremely non-porous surfaces should be lightly sanded or ground first to improve mechanical grip. Allow to dry to a transparent, tack-free film (approximately 1 hour at 23°C) before applying levelling compounds.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eInternal use only; do not apply to substrates subject to rising damp.\u003c\/li\u003e\n \u003cli\u003eDo not apply to ceramic tiles that have a wax surface or an excessively high gloss coating.\u003c\/li\u003e\n \u003cli\u003eDo not use solvents or acid etching to clean or prepare the subfloor.\u003c\/li\u003e\n \u003cli\u003eMinimum subfloor temperature during application must be 10°C. For temperatures below 5°C or above 35°C, contact the RLA Technical Department before starting.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"RLA","offers":[{"title":"5 litre","offer_id":43144889827520,"sku":"PRIMEUNI\/5","price":121.14,"currency_code":"AUD","in_stock":true},{"title":"20 Litre","offer_id":43556388438208,"sku":"PRIMEUNI\/20","price":362.88,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/rla-universal-primer-porous-concrete-tiles-adheseal.png?v=1763710065"},{"product_id":"ardex-wpm-300-epoxy-moisture-barrier-primer","title":"Ardex WPM 300 Epoxy Moisture Barrier \u0026 Primer","description":"\u003cdiv role=\"main\"\u003e\n\u003cp\u003eFor damp masonry, brickwork, and green concrete where rising damp, efflorescence, or hydrostatic pressure threatens to ruin subsequent floor coverings, tiling, or coatings, WPM 300 Epoxy Moisture Barrier \u0026amp; Primer provides a permanent water vapour transmission barrier. This two-component, water-based epoxy seals mineral substrates and withstands significant back-pressure, allowing you to install levelling compounds, membranes, and adhesives without waiting months for new concrete to dry.\u003c\/p\u003e\n\u003ch3\u003eWhat it does\u003c\/h3\u003e\n\u003cp\u003eWPM 300 Epoxy Moisture Barrier \u0026amp; Primer cures to form a non-porous, hydrostatic-resistant barrier. Applied directly to damp surfaces, it prevents moisture vapour from rising through concrete slabs, screeds, and blockwork. The water-based epoxy formulation tolerates green concrete, blocking the transmission of salts that cause efflorescence beneath finished coatings. For structural tanking and potable water storage, the cured barrier meets AS\/NZS 4020 for drinking water safety.\u003c\/p\u003e\n\u003cp\u003eWhen used as a moisture barrier, the system must be applied in a two-coat sequence to build a nominal 300-micron dry film thickness. For tiling, screeding, or floor levelling applications, the wet second coat is sand-seeded to provide a mechanical key, preventing adhesion failure of the subsequent underlayments or adhesives. Alternatively, a single coat can be used as a general primer for liquid-applied waterproofing membranes or as a temporary seal on green slabs not subject to permanent rising damp.\u003c\/p\u003e\n\u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e250kPa hydrostatic pressure resistance:\u003c\/strong\u003e Withstands the equivalent of a 25-metre head of water, preventing negative-side water seepage and dampness penetration through interior walls and floors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u0026lt;10g\/m²\/24hrs water vapour transmission:\u003c\/strong\u003e Meets the AS1884 requirement for moisture barriers when applied at a dry film thickness of 0.3mm over damp concrete subfloors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e1.5m²\/L total coverage:\u003c\/strong\u003e Must be applied at this total rate (achieved via two coats at 3.0m²\/L per coat) to form an effective moisture barrier.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-hour recoat window:\u003c\/strong\u003e Allows the second coat to be applied quickly at 25ºC and 50% relative humidity, speeding up site preparation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2-hour pot life:\u003c\/strong\u003e Gives installers a practical working window at 25ºC (reducing to 1 hour at 35ºC) once Part A and Part B are combined in their 1:1 mixing ratio.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhere to use it\u003c\/h3\u003e\n\u003cp\u003eSuitable for application on the following prepared substrates:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eConcrete and freshly laid (green) concrete\u003c\/li\u003e\n\u003cli\u003eConcrete block and masonry\u003c\/li\u003e\n\u003cli\u003eScreeds and renders\u003c\/li\u003e\n\u003cli\u003eBrick and stone\u003c\/li\u003e\n\u003cli\u003eTimber\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation limits\u003c\/h3\u003e\n\u003cp\u003eBefore applying WPM 300 Epoxy Moisture Barrier \u0026amp; Primer, prepare the surface using mechanical methods and vacuum cleaning to remove all dirt, dust, curing compounds, oils, grease, and surface sealers. Repair any divots, voids, or minor irregularities first with ARDEX WPM 405 sand\/cement mortar, ARDEX Render, or a job-mixed WPM 300 epoxy mortar (1 part mixed epoxy, 1 part Portland cement, 3 parts ARDEX Primer Sand).\u003c\/p\u003e\n\u003cp\u003eWhen applying to dry or highly porous substrates, mist the surface with water first, ensuring all free-standing water is removed before application. Work the first coat into the surface using a squeegee or stiff nylon broom on floors, or a roller on walls. You can thin the first coat with water to assist penetration (up to 5% for dense surfaces, and up to 20% for porous surfaces). Do not thin the second coat, as this prevents you from reaching the required 300-micron wet film thickness.\u003c\/p\u003e\n\u003cp\u003eFor screed, tiling, and flooring applications where smoothing cements or adhesives are to be applied, broadcast ARDEX Floor Leveller Primer Sand or clean dry 0.5mm sand over the wet second coat at a rate of 700g\/m² to achieve 100% coverage. Allow to cure for a minimum of 24 hours, then sweep and vacuum away excess sand before laying the subsequent floor system.\u003c\/p\u003e\n\u003ch3\u003eLimitations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eTiling must commence after 24 hours of cure but must not exceed five days unless the wet surface was sand-blinded during application.\u003c\/li\u003e\n\u003cli\u003eDo not apply if surface or ambient temperatures are below 10ºC or above 35ºC. Curing will cease effectively below 10ºC.\u003c\/li\u003e\n\u003cli\u003eCuring times will slow significantly if the relative humidity exceeds 85%. Adequate ventilation must be provided in enclosed areas.\u003c\/li\u003e\n\u003cli\u003eEnsure that any adhesives sandwiched between the cured epoxy and the final floor covering have sufficient vapour transmission to allow solvents or moisture to escape.\u003c\/li\u003e\n\u003cli\u003eWPM 300 Epoxy Moisture Barrier \u0026amp; Primer is not a trafficable coating and must be protected from damage during subsequent trade work.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Ardex","offers":[{"title":"Default Title","offer_id":46776016208064,"sku":null,"price":0.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/ardex_wpm_300_primer.png?v=1758172238"},{"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\/tiling-primers.oembed","provider":"Adheseal","version":"1.0","type":"link"}