{"title":"Moisture Barrier Primers","description":null,"products":[{"product_id":"megapoxy-154","title":"Megapoxy 154","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor treating damp surfaces, masonry, and green concrete, Megapoxy 154 is a two-component water-based epoxy designed to prime, seal, and provide a moisture barrier before laying down floor finishes or secondary membranes. It cures to a matte, chemical-resistant coating that tolerates foot traffic and light vehicular traffic in large commercial spaces like car parks and warehouses.\u003c\/p\u003e\n\n \u003ch3\u003eWhat it does\u003c\/h3\u003e\n \u003cp\u003eMegapoxy 154 combines epoxy adhesion with the practical application benefits of a water carrier, allowing it to penetrate and bond directly to damp concrete substrates. The mixed formula acts as a concrete curing membrane, a dust sealer for interior concrete floors, or a moisture barrier on damp surfaces before installing timber or vinyl overlays. It is also suitable as a primer for acrylic and polyurethane membranes (excluding WBE Clear), ensuring a sound bond key on porous masonry and concrete.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e60-minute work time (at 25°C):\u003c\/strong\u003e Your application window to mix, thin with water if required, and roll or spray the material before it begins to set.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e140–180 minutes thin film cure (at 25°C):\u003c\/strong\u003e Rapid initial drying phase under standard conditions to minimise downtime between coats.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e24-hour minimum cure time (at 25°C and 50% RH):\u003c\/strong\u003e The compulsory drying window required before applying subsequent waterproof membranes, adhesives, mortars, decorative coatings, or top treatments.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e5 to 8 sqm per litre coverage:\u003c\/strong\u003e Application rate per coat for a smooth finish when applied by brush, roller, or airless spray.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e10°C minimum application temperature:\u003c\/strong\u003e The lower limit for the substrate and ambient air; application below this point dramatically slows curing and can cause amine blush.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eGreen concrete and damp surfaces:\u003c\/strong\u003e Prime and seal damp masonry where standard solvent-borne epoxies cannot bond.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSlab preparation:\u003c\/strong\u003e Seal concrete slabs to control moisture vapour before laying down vinyl and timber overlays.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTrafficable floors:\u003c\/strong\u003e Dust-seal interior concrete floors in high-traffic zones exposed to oil, grease, chemicals, and light vehicles.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eMembrane priming:\u003c\/strong\u003e Apply as a preparatory primer under acrylic and polyurethane waterproofing membranes.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eNot a standalone waterproofing membrane:\u003c\/strong\u003e Megapoxy 154 is a barrier and primer, not a flexible waterproof membrane. Use a dedicated waterproofing membrane where water exclusion is required.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eRigid cure:\u003c\/strong\u003e Once cured, the epoxy is rigid and will not absorb or bridge movement cracks.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eUV exposure:\u003c\/strong\u003e Megapoxy 154 will tend to chalk and yellow when exposed to UV light. For external applications, apply a UV-resistant top coat.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSubstrate compatibility:\u003c\/strong\u003e Do not apply over surfaces previously treated with curing compounds, PVA concrete bonding agents, or acrylic coatings. Mechanically clean these back to bare concrete first.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNo metal application:\u003c\/strong\u003e Do not apply to steel or metal surfaces, as corrosion will occur.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNo cement mixing:\u003c\/strong\u003e Do not add cementitious products directly to Megapoxy 154.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHumidity and cold limits:\u003c\/strong\u003e Curing is dramatically slowed if relative humidity exceeds 80% or if temperatures fall below 10°C. In cool conditions, substrate temperatures can produce an oily amine blush or tacky discolouration, which must be fully removed before applying subsequent coats.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eHow to apply\u003c\/h3\u003e\n \u003cp\u003eAll surfaces must be structurally sound and clean of previous coatings, adhesives, efflorescence, laitance, grease, and oil by grinding, shot blasting, high-pressure water washing, or mechanical scrubbing. Repair all holes and non-structural cracks with suitable Megapoxy repair compounds before priming.\u003c\/p\u003e\n \u003cp\u003eMix 1 Part A to 1 Part B by volume in a clean mixing vessel for a minimum of 3 minutes. If thinning, up to 25% water may be added and mixed until completely homogeneous \u003cem\u003eafter\u003c\/em\u003e the resin and hardener are fully mixed. Do not mix Part A, Part B, and water at the same time. In cold temperatures, mix for at least 1 extra minute and let the mixed batch stand for 5 minutes to accelerate drying. For best results, store the kit at 20°C for 24 hours prior to mixing.\u003c\/p\u003e\n \u003cp\u003eMegapoxy 154 requires a minimum of two coats, applied with a brush or roller at right angles to the previous coat to fill voids and eliminate pinholes. Test the wet film depth at random points during application with a wet film gauge. For porous concrete, a third coat may be required. For non-slip finishes, mix a fine epoxy-grade sand aggregate directly into the wet mix, or broadcast coarser aggregate directly into the first wet coat and seal with subsequent coats. Clean all mixing tools and equipment with \u003ca href=\"\/products\/megapoxy-thinners\"\u003eMegapoxy Thinners\u003c\/a\u003e immediately after use.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Megapoxy","offers":[{"title":"Default Title","offer_id":43822340473024,"sku":"MP154\/20","price":700.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/products\/megapoxy-154-water-based-epoxy-concrete-primer-adheseal.png?v=1763706786"},{"product_id":"everflex-vbs","title":"Everflex VBS Water-based Epoxy Primer","description":"\u003cdiv role=\"main\"\u003e\n  \u003cp\u003eFor sealing green concrete, priming damp substrates, or blocking rising damp, Everflex VBS Water-based Epoxy Primer provides a high-density moisture barrier. This two-part water-based epoxy controls negative hydrostatic pressure up to a 25-metre head of water, preventing moisture migration from destroying timber flooring, polyurethane membranes, and floor coatings.\u003c\/p\u003e\n\n  \u003ch3\u003eHow it works\u003c\/h3\u003e\n  \u003cp\u003eEverflex VBS forms a low-permeability barrier that blocks water vapour and liquid water pressure from the negative side of the substrate. Once fully cured, the water-based epoxy film does not re-emulsify when exposed to moisture. The formulation also inhibits the growth of mould and biological organisms. When used as a vapour barrier system, the dried film must reach a minimum thickness of 0.33mm (330 microns) to achieve its rated 0.12g\/24hrs\/m²mmHg permeance rating and resist up to 250kPa of hydrostatic pressure.\u003c\/p\u003e\n\n  \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003e0.33mm dry film thickness:\u003c\/strong\u003e The minimum dry film thickness required to block negative vapour pressure.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e250kPa hydrostatic pressure:\u003c\/strong\u003e Withstands up to a 25-metre head of water when applied at the specified film thickness.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e4 to 24 hours recoat window:\u003c\/strong\u003e The critical window at 25°C and 50% relative humidity for overcoating. If this window is missed, a fresh coat of Everflex VBS must be applied before applying membranes or paints.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e1:1 mix ratio:\u003c\/strong\u003e Simple, equal-part mixing by volume or weight of Part A and Part B to prevent curing failure.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003e\u0026lt;5g\/L VOC:\u003c\/strong\u003e Meets \"Green Star\" environmental criteria for indoor air quality.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n  \u003cp\u003eEverflex VBS is suitable for internal and external applications on the following structurally sound substrates:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eConcrete (cured for at least 14 days) and pre-cast concrete (with release agents removed)\u003c\/li\u003e\n    \u003cli\u003e3:1 sand cement and engineered screeds\u003c\/li\u003e\n    \u003cli\u003eMasonry and cement render (cured for at least 4 days)\u003c\/li\u003e\n    \u003cli\u003eCement sheeting, underlay, external weatherboard, blue board, Scyon, and AAC systems\u003c\/li\u003e\n    \u003cli\u003eWet area plasterboard and Villaboard\u003c\/li\u003e\n    \u003cli\u003eTimber flooring, including structural plywood Type A (PAA JAS-ANZ)\u003c\/li\u003e\n    \u003cli\u003eBrickwork and Hebel aggregate blocks\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCompatible systems\u003c\/h3\u003e\n  \u003cp\u003eThis primer is formulated for subsequent application of:\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eEverflex WPUV, HVUV, WPM Fast cure, and Aqua-Ban membranes\u003c\/li\u003e\n    \u003cli\u003ePolyurethane membranes and 2-part cementitious membranes\u003c\/li\u003e\n    \u003cli\u003eParquetry adhesives\u003c\/li\u003e\n    \u003cli\u003eUrethane floor coatings\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eApplication and film thickness\u003c\/h3\u003e\n  \u003cp\u003eSubstrates must be clean, stable, free of surface water, and free of form release agents or curing compounds. Mix Part A and Part B in a 1:1 ratio with an electric mixer. Pot life is 2 hours at 25°C, reducing to 1 hour at 35°C.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAs a standard primer:\u003c\/strong\u003e Apply at a rate of 4 to 6 m² per litre by brush or roller. For highly porous surfaces or 14-day-old concrete, apply a secondary coat at the same rate 2 hours after the first is touch-dry.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAs a vapour barrier system:\u003c\/strong\u003e Dilute the mixed batch with 10% water and apply as a wash coat. Apply the first undiluted coat at 5 m² per litre. Fill cracks and voids with VBS repair paste (mixed VBS combined with 1 part Portland cement and 1 part kiln-dried sand) while the first coat is wet. Apply at least 2 additional undiluted coats (waiting 2 hours after touch-dry and within 24 hours) until a minimum 0.33mm dry film thickness is achieved. Do not dilute subsequent coats.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eAs an isolation barrier:\u003c\/strong\u003e Apply multiple coats until the area achieves a completely uniform colour.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eLimitations\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eDo not apply if temperatures are below 10°C or above 35°C during application or cure.\u003c\/li\u003e\n    \u003cli\u003eDo not apply to metallic surfaces.\u003c\/li\u003e\n    \u003cli\u003eDo not apply to wet surfaces with standing or running water, or if rain is imminent.\u003c\/li\u003e\n    \u003cli\u003eNot suitable as an exposed final coating; has limited UV resistance and must be overcoated with a suitable UV-stable topcoat.\u003c\/li\u003e\n    \u003cli\u003eOnce fully cured (5 to 7 days), another coat of Everflex VBS must be applied if a membrane or paint coating is to be installed over it.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Adheseal","offers":[{"title":"Default Title","offer_id":43822339621056,"sku":"PRIMEVBS\/20","price":440.44,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/everflex-vbs-water-based-epoxy-vapour-barrier-adheseal.png?v=1763706991"},{"product_id":"gripset-xpress-h2o-plus","title":"Gripset Xpress Primer H2O Plus Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eTo prevent waterproofing membranes and topical coatings from blistering or delaminating over damp or green concrete, Xpress Primer H2O Plus Primer forms a single-component vapour barrier that locks down residual substrate moisture. Unlike traditional epoxy vapour barriers, this water-resistant primer stops moisture without altering the surface profile, preserving the original texture of your screed, render, or concrete so overlaid finishes can achieve their intended mechanical bond.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eXpress Primer H2O Plus Primer is applied as a neat, single-coat liquid that penetrates mineral substrates. As it cures, it changes colour from milky white to a slight green tinge, finally drying completely clear to show it is ready for overcoating. This built-in visual indicator helps installers avoid premature membrane application, which can trap uncured moisture and lead to system failure. When used as a standalone sealer over screeds and renders, the primer blocks mineral migration to reduce efflorescence. On bare concrete, it seals the pores to prevent carbonation, protecting the reinforcing steel from structural degradation.\u003c\/p\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eSubstrates:\u003c\/strong\u003e Concrete, green concrete, concrete block, screeds, renders, masonry, aerated concrete, compressed fibre cement sheeting, and plasterboard.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eOverlaid systems:\u003c\/strong\u003e Recommended for priming porous surfaces prior to applying Gripset Xpress Multi Pro Membrane, as well as other overlaid membranes and coatings.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eSealing applications:\u003c\/strong\u003e Standalone sealing for concrete carbonation protection and efflorescence control on sand-cement screeds and mineral renders.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e1 hour dry time:\u003c\/strong\u003e Fast-drying formula (at 23°C and 50% relative humidity) that allows you to apply waterproofing membranes or decorative finishes with minimal downtime on-site.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1 litre per 6m² coverage:\u003c\/strong\u003e A reliable application rate for estimating material requirements over standard mineral surfaces, though actual coverage varies with substrate porosity.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1-component formulation:\u003c\/strong\u003e Ready to use straight from the pail without measuring, mixing, or pot-life limitations associated with two-part epoxy barriers.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eSuitable for use over concrete and mineral surfaces only.\u003c\/li\u003e\n \u003cli\u003eDo not apply to substrates subject to active, continuous sources of rising moisture or negative hydrostatic pressure; these must be treated with \u003ca href=\"\/products\/gripset-e60\"\u003eGripset E60\u003c\/a\u003e.\u003c\/li\u003e\n \u003cli\u003eDo not apply when surface or ambient temperatures are below 5°C or above 35°C.\u003c\/li\u003e\n \u003cli\u003eDo not apply when raining or when rain is imminent.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApplication and preparation\u003c\/h3\u003e\n \u003cp\u003eAll substrates must be clean, sound, smooth, and free of laitance, curing compounds, release agents, existing coatings, and general contaminants. High MPa concrete, burnished concrete, or steel-floated concrete surfaces that show no water absorption must be mechanically abraded or roughened to ensure the primer can penetrate the pores. Apply one coat neat by brush or medium nap roller until full coverage is achieved. Do not dilute. To prevent site dust or debris from contaminating the primed surface, install overlaid membranes or finishes shortly after the primer dries clear.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Gripset","offers":[{"title":"Default Title","offer_id":43822340145344,"sku":"PRIMEGRIPH20\/10","price":389.93,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/gripset-xpress-primer-h2o-plus-waterproofing-adheseal.png?v=1763709693"},{"product_id":"gripset-e60","title":"Gripset E-60 Epoxy Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor damp or green concrete, masonry, and mineral substrates where residual moisture exceeds maximum allowable limits, Gripset E-60 Epoxy Primer serves as a water-based epoxy vapour barrier, moisture barrier, and high-adhesion primer. It prevents moisture penetration, rising damp, and efflorescence prior to the application of membranes, adhesives, and floor finishes.\u003c\/p\u003e\n\n \u003ch3\u003eWhat it does\u003c\/h3\u003e\n \u003cp\u003eE-60 Epoxy Primer is a two-component water-based epoxy compound that functions as both a primer and protective barrier. When applied to mineral surfaces, it cures to restrict water vapour transmission and withstands hydrostatic water pressure from the negative side. It provides a compatible bonding surface for subsequent coatings, tile adhesives, and cementitious screeds, and is certified under AS 4020 for contact with potable water storage tanks.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e2.5 bar hydrostatic resistance:\u003c\/strong\u003e Cured barrier withstands up to 25 metres of negative hydrostatic pressure, preventing rising damp and water penetration.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1.3g\/m²\/24 hours water vapour transmission:\u003c\/strong\u003e Tested under ASTM E96 (2 coats @ 300 microns DFT) to restrict moisture vapour migration through concrete slabs.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e2-hour pot life:\u003c\/strong\u003e Practical working window at 23°C and 50% RH to mix and apply the two-part compound before it begins to set.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e4-hour recoat window:\u003c\/strong\u003e Allows fast multi-coat applications on the same day under standard drying conditions.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e300-micron minimum dry film thickness (DFT):\u003c\/strong\u003e Required total cured thickness in 2 coats (applied at 1 litre per 3m² per coat) to form a complete moisture barrier or hydrostatic seal.\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 on the following substrates:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eConcrete, including green concrete and damp screeds.\u003c\/li\u003e\n \u003cli\u003eConcrete block and masonry surfaces.\u003c\/li\u003e\n \u003cli\u003eScreed, render, and glass reinforced concrete.\u003c\/li\u003e\n \u003cli\u003eCompressed fibre cement sheeting, including James Hardie Scyon Secura external and internal flooring.\u003c\/li\u003e\n \u003cli\u003eTimber.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApplication guidelines\u003c\/h3\u003e\n \u003cp\u003eDilution can be adjusted based on the substrate porosity to ensure optimal penetration during the first coat:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePorous surfaces:\u003c\/strong\u003e Dilute the first coat 5% with water. Highly porous surfaces or aged concrete should be lightly dampened with a fine water mist before application.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eNon-porous or dense surfaces:\u003c\/strong\u003e Dilute the first coat 10% with water.\u003c\/li\u003e\n \u003c\/ul\u003e\n \u003cp\u003eFor general priming and adhesion enhancement under membranes, apply 1 coat at 1 litre per 10m² (100 microns wet film thickness \/ 50 microns dry film thickness).\u003c\/p\u003e\n \u003cp\u003eFor vapour barrier applications on green concrete, apply 1 coat at 1 litre per 3m² (300 microns wet film thickness \/ 150 microns dry film thickness).\u003c\/p\u003e\n \u003cp\u003eFor hydrostatic moisture barriers, efflorescence prevention, and potable water immersion, apply 2 coats at 1 litre per 3m² per coat (forming a total minimum dry film thickness of 300 microns). Use a wet film gauge to verify coverage during application.\u003c\/p\u003e\n \u003cp\u003eWhen tiling or applying cementitious floor levellers directly over E-60, apply 2 coats at 1 litre per 3m² per coat. The second coat must be sand-seeded by broadcasting dry sand into the wet film at a rate of 750g\/m² to achieve minimum 90% coverage. Vacuum excess sand once dried.\u003c\/p\u003e\n \u003cp\u003eE-60 can also be used to mix high-strength repair mortars by combining 1 part mixed E-60, 1 part Portland cement, and 3 parts fine washed sand. Apply with a spatula or trowel.\u003c\/p\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDo not apply when surface or ambient temperatures are above 35°C or below 10°C.\u003c\/li\u003e\n \u003cli\u003eCure rates are dramatically reduced in temperatures below 10°C or when relative humidity exceeds 80%.\u003c\/li\u003e\n \u003cli\u003eDo not apply when rain is imminent or on surfaces with standing water.\u003c\/li\u003e\n \u003cli\u003eWhen sealing against negative hydrostatic pressure, running water must be treated first with \u003ca href=\"\/products\/gripset-c-plug-rapid-set-waterproof-plug\"\u003eGripset C-Plug\u003c\/a\u003e.\u003c\/li\u003e\n \u003cli\u003eNot to be used as a trafficable coating or as a finished coating subject to permanent UV exposure.\u003c\/li\u003e\n \u003cli\u003eAll overlaid membranes, paints, and finishes must be applied within 72 hours of E-60 drying. After 72 hours, the surface must be lightly sanded with 240-grit sandpaper to promote adhesion, or a further coat of E-60 must be applied.\u003c\/li\u003e\n \u003cli\u003eFor potable water applications, the cured surface must be washed down with clean water and dispelled before filling.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Gripset","offers":[{"title":"4L Kit","offer_id":46158254506176,"sku":"PRIMEGRIPE60\/4","price":106.24,"currency_code":"AUD","in_stock":true},{"title":"20L Kit","offer_id":46158254538944,"sku":"PRIMEGRIPE60\/20","price":391.04,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/gripset-e-60-epoxy-primer-waterproofing-adheseal.png?v=1763709804"},{"product_id":"epocote-f100w","title":"GCP Epocote F100W Clear Epoxy Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor priming damp or green concrete before applying BITUTHENE LM, AQUAGARD polyurethane, or NEWFLEX water-based membranes, Epocote F100W Clear Epoxy Primer provides a fully-bonded, chemically resistant foundation. It also functions as a clear sealer on tiles and step risers to block efflorescence and calcium leachate staining from marring the finished surface.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eEpocote F100W Clear is a two-pack, water-based epoxy system. It penetrates porous concrete substrates to establish a strong mechanical bond, even when the concrete is damp or green (up to a 10% maximum moisture content). By forming a tough, continuous barrier, the cured epoxy prevents moisture and soluble salts from migrating to the surface, which stops efflorescence on tiled step risers and protects overlying waterproofing membranes from moisture-induced adhesion failure. The low-odour, low-VOC formulation is mixed in a simple 100:100 ratio by weight or volume, offering a long pot life for practical application without early gelling in the pot.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e10% maximum moisture content:\u003c\/strong\u003e The upper limit for application on damp or green concrete, allowing you to prime damp slabs without waiting for complete dry-back.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e60-minute pot life (at 25°C):\u003c\/strong\u003e Provides an extended working window to mix, apply, and back-roll full sets with minimal waste before the material begins to gel.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e2 to 4 hours tack-free time (0.1mm film at 25°C \/ 60% RH):\u003c\/strong\u003e Quick initial drying to minimise downtime and protect the wet primer from site dust.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e24-hour maximum recoat time (at 20°C):\u003c\/strong\u003e The critical window to apply subsequent membrane coats or a second primer coat without needing to mechanically abrade the surface.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e0.25 kg\/m² coverage rate (approx. 4 m²\/L):\u003c\/strong\u003e The nominal application rate, which will vary depending on the porosity and profile of the concrete substrate.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eGreen concrete:\u003c\/strong\u003e Slabs that have not fully cured but require early priming to maintain waterproofing schedules.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eDamp concrete:\u003c\/strong\u003e Substrates retaining moisture up to the 10% limit.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003ePorous concrete substrates:\u003c\/strong\u003e Slabs prone to pinholes, where a diluted first coat seals the pores.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTiles and step risers:\u003c\/strong\u003e Exterior or wet-area tiled assemblies subject to water migration and subsequent calcium staining.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApplication steps\u003c\/h3\u003e\n \u003cp\u003eFor porous concrete substrates prone to pinholes, dilute the first coat of Epocote F100W Clear with 10% clean water to seal the pores. Apply the second coat undiluted within 24 hours. For non-porous or standard damp concrete, apply the product undiluted by brush or roller.\u003c\/p\u003e\n \u003cp\u003eTo mix, add Part B to Part A and mix for 3 minutes using a slow-speed mixer. Allow the mixture to stand for 5 minutes, then re-mix before starting application. Clean tools immediately with water while the epoxy is uncured; \u003ca href=\"\/products\/xylene\"\u003exylene\u003c\/a\u003e can be used to help remove gelled material.\u003c\/p\u003e\n\n \u003ch3\u003eInstallation limits\u003c\/h3\u003e\n \u003cp\u003eConcrete substrates must have a minimum strength grade of 25 MPa and be moist-cured as required by AS 3600. The minimum age of the concrete before waterproofing membrane application is 14 to 28 days, depending on concrete thickness and the specific GCP primer selected. Detail all joints and penetrations according to NCC, AS 4654.2 (for external above-ground areas), and AS 3740 (for internal wet areas) before priming begins.\u003c\/p\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDo not apply if the moisture content of the damp or green concrete exceeds 10%.\u003c\/li\u003e\n \u003cli\u003eDo not apply when the ambient or substrate temperature is below 10°C or above 35°C, or when the relative humidity exceeds 80%.\u003c\/li\u003e\n \u003cli\u003ePot-life reduces in hot weather; cold weather or cold substrates will slow the overall cure time.\u003c\/li\u003e\n \u003cli\u003eDiscard any material that has begun to gel in the container.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"GCP","offers":[{"title":"Grey","offer_id":46349640794304,"sku":"PRIMEF100WGR\/20","price":547.84,"currency_code":"AUD","in_stock":true},{"title":"Clear","offer_id":46349640827072,"sku":"PRIMEF100WCL\/20","price":471.81,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/epocote-f100w-clear-epoxy-primer-waterproofing-adheseal.jpg?v=1763710207"},{"product_id":"rla-moisture-seal","title":"RLA Moisture Seal Primer","description":"\u003cdiv role=\"main\"\u003e\n \u003cp\u003eFor subfloors and walls showing signs of rising damp, or green concrete slabs that need immediate coating, RLA Moisture Seal Primer acts as a two-part water-based epoxy barrier to block moisture vapour transmission and prevent subsequent floor finishes from blistering, bubbling, or delaminating. It seals mineral substrates prior to applying levelling compounds, membranes, adhesives, or decorative finishes, and resists hydrostatic pressure in below-ground installations like lift pits and basements.\u003c\/p\u003e\n\n \u003ch3\u003eHow it works\u003c\/h3\u003e\n \u003cp\u003eThis solvent-free, low-VOC epoxy system penetrates concrete, screeds, and masonry to form a dense, non-porous barrier. When mixed in a 1:1 ratio by volume, the cured film withstands substantial water pressure on negative-side underground structures and blocks water vapour transmission. It is fully compatible with RLA membranes, adhesives, and levelling compounds, and complies with AS 4020 for potable water storage applications.\u003c\/p\u003e\n\n \u003ch3\u003eNumbers that matter\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003e2.5 bar hydrostatic resistance:\u003c\/strong\u003e Withstands up to 25 metres of negative or positive hydrostatic head pressure, preventing water seepage in below-ground basements, lift pits, and retaining walls.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e1.8g\/m²\/24 hours water vapour transmission:\u003c\/strong\u003e Tested to ASTM E96 (Desiccant method) at a 2-coat thickness of 200 microns DFT to stop rising damp from bubbling overlaid vinyl, timber, carpet, and epoxy coatings.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e4-hour recoat window:\u003c\/strong\u003e Allows fast multi-coat buildup at 23°C and 50% relative humidity, with full drying for finishes in 24 hours.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e2-hour pot life:\u003c\/strong\u003e Generous working time to mix, apply, and work the epoxy into porous substrates before curing begins in the pail.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003e10-day water immersion cure:\u003c\/strong\u003e The required curing period before putting the treated surface into service for potable water storage.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eWhere to use it\u003c\/h3\u003e\n \u003cp\u003eThis primer is suitable for application over the following substrates:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003eConcrete and concrete blocks\u003c\/li\u003e\n \u003cli\u003eGlass reinforced concrete (GRC)\u003c\/li\u003e\n \u003cli\u003eSand and cement screeds and renders\u003c\/li\u003e\n \u003cli\u003eMasonry surfaces\u003c\/li\u003e\n \u003cli\u003eTimber\u003c\/li\u003e\n \u003cli\u003eCompressed fibre cement sheeting, including James Hardie Scyon™ Secura™\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eApplication standards\u003c\/h3\u003e\n \u003cp\u003eCoverage and film thickness must be adjusted to match the job requirement:\u003c\/p\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003eAs a general primer:\u003c\/strong\u003e Apply 1 coat at 1 L per 10m² to achieve 100 microns WFT (50 microns DFT) over approved substrates like James Hardie Scyon™ Secura™ before applying RLA waterproof membranes.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAs a vapour barrier:\u003c\/strong\u003e Apply 1 coat at 1 L per 5m² to achieve 200 microns WFT (100 microns DFT) over green concrete or screeds before installing liquid membranes.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eAs a moisture barrier \/ hydrostatic coating:\u003c\/strong\u003e Apply 2 coats, each at 1 L per 5m² (total dry film thickness of 200 microns) for subfloors, rising damp, efflorescence control, and potable water immersion. Apply the second coat at right angles to the first.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eHigh-strength repair mortar:\u003c\/strong\u003e To patch surface defects or build waterproof fillets, mix 1 part mixed Moisture Seal, 1 part Portland cement, and 3 parts fine washed sand by volume, then apply with a spatula or trowel.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003ePreparing for subsequent finishes\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003e\n\u003cstrong\u003ePaints, epoxies, and liquid membranes:\u003c\/strong\u003e Overcoat within 72 hours under normal conditions. After 72 hours, the cured surface must be lightly sanded with 240-grit sandpaper to promote mechanical adhesion before applying the top coating or an additional coat of Moisture Seal.\u003c\/li\u003e\n \u003cli\u003e\n\u003cstrong\u003eTiling, screeding, and cementitious levelling:\u003c\/strong\u003e When applying polymer-modified tile adhesives, engineered screeds, or floor smoothing compounds, broadcast fine dry sand into the wet second coat of Moisture Seal at a rate of 750g\/m² (minimum 90% coverage). Sweep or vacuum up excess sand once dry. Alternatively, for green substrates only, prime the cured first coat of Moisture Seal with RLA Universal Primer before pouring levelling compounds.\u003c\/li\u003e\n \u003c\/ul\u003e\n\n \u003ch3\u003eLimitations\u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eDo not apply if surface or ambient temperatures are below 10ºC or above 35ºC.\u003c\/li\u003e\n \u003cli\u003eCure rates slow dramatically when temperatures fall below 10ºC or relative humidity exceeds 80%. Do not apply if rain is imminent.\u003c\/li\u003e\n \u003cli\u003eDo not apply over standing water or onto steel and metal surfaces.\u003c\/li\u003e\n \u003cli\u003eFor structures subject to active water leaks under hydrostatic pressure, treat and stop the active leaks with a hydraulic water plug cement before applying Moisture Seal.\u003c\/li\u003e\n \u003cli\u003eMust be covered with floor toppings, coatings, or conventional floor coverings; this product is not designed as a trafficable surface or a finished coating under permanent UV exposure.\u003c\/li\u003e\n \u003cli\u003eProvide mechanical ventilation when curing inside enclosed tanks, pits, or reservoirs to allow water evaporation.\u003c\/li\u003e\n \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"RLA","offers":[{"title":"Default Title","offer_id":45829774573760,"sku":"MOISTSEALRLA\/20","price":459.03,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0507\/3630\/0224\/files\/rla-moisture-seal-vapour-barrier-damp-concrete-adheseal.png?v=1763711770"}],"url":"https:\/\/adheseal.com.au\/collections\/moisture-barrier-primers.oembed","provider":"Adheseal","version":"1.0","type":"link"}