Waterproofing Primers

Explore our waterproofing primers, specially formulated to improve adhesion between substrates and waterproofing membranes. These primers create a stable base for optimal membrane performance, suitable for use on concrete, masonry, and other porous surfaces. Buy online today for effective waterproofing preparation.

Explore our waterproofing primers, specially formulated to improve adhesion between substrates and waterproofing membranes. These primers create a stable base for optimal membrane performance, suitable for use on concrete, masonry, and other porous surfaces. Buy online today for effective waterproofing preparation.

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  • Everflex VBS
      Adheseal
      Everflex VBS
      Everflex VBS is a high-performance 2-part water-based epoxy system that functions as both a vapour barrier and primer. Formulated for internal and external use, it is ideal for damp substrates, green concrete, and as a negative waterproofing solution (up to 250kPa). With low VOC content, fast drying time, and excellent adhesion to concrete, screeds, masonry, and timber, Everflex VBS is suitable for a wide range of applications including waterproofing membranes, self-levelling systems, and flooring. It resists re-emulsification, inhibits mould, and meets Green Star environmental criteria.
      $364.85
      $364.85
    • Everflex Multi-Prime
      Adheseal
      Everflex Multi-Prime
      Everflex Multi-Prime is a high-performance, water-based acrylic primer engineered for superior adhesion on both porous and non-porous substrates. Designed to prepare surfaces for tile adhesives, waterproofing membranes, self-levelling compounds, and grouts, it delivers fast dry times, low VOC compliance, and reliable long-term performance on concrete, screeds, sheeting, timber, and more.
      From $68.28
      From $68.28
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    • Everflex Supaprime
      Adheseal
      Everflex Supaprime
      Everflex Supaprime is a professional-grade, moisture-curing polyurethane primer engineered for porous and non-porous substrates. Designed to enhance adhesion of Adheseal membranes, sealants, and adhesives, it features rapid drying, deep penetration, and low viscosity for superior substrate bonding. Ideal for both internal and external applications, it delivers long-term durability across concrete, masonry, timber, and cement sheeting.
      From $59.51
      From $59.51
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    • Everflex WBP
      Adheseal
      Everflex WBP
      Everflex WBP is a single-component, water-based acrylic primer designed for internal use on porous surfaces. It improves the bond of Adheseal membranes and coatings to substrates such as concrete, cement render, and masonry. With low VOC content and Green Star compliance, Everflex WBP is safe for indoor use, easy to apply, and environmentally responsible. Ideal for residential and commercial waterproofing preparation.
      From $45.96
      From $45.96
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    • Gripset GP
        Gripset
        Gripset GP
        Gripset GP Primer is a high-performance, water-based primer for sealing porous surfaces before applying Gripset waterproofing membranes. It improves adhesion, reduces porosity, and helps achieve a uniform membrane finish on concrete, masonry, fibre cement, and timber substrates.
        From $77.75
        From $77.75
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      • Gripset OPGripset OP
        Gripset
        Gripset OP
        Gripset OP Primer is a solvent-free, low VOC, multipurpose primer engineered to deliver exceptional adhesion of Gripset membranes, tile adhesives, and approved coatings to smooth, non-porous substrates. With a textured finish for improved mechanical key, it bonds reliably to metal, PVC, ceramic tiles, fibre cement sheeting, and more—drying tack-free in just 30 minutes for efficient internal or external application.
        From $142.70
        From $142.70
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      • Gripset Xpress Primer H2O PlusGripset Xpress Primer H2O Plus
          Gripset
          Gripset Xpress Primer H2O Plus
          Gripset Xpress Primer H2O Plus is a rapid-drying, water-based primer formulated to allow waterproofing membranes to be applied to damp or porous surfaces within 30 minutes. Designed for internal and external use, it eliminates delays caused by residual surface moisture, offering excellent penetration and adhesion to concrete, screeds, renders, and masonry. Low VOC and solvent-free, it’s the go-to primer for wet weather projects and time-sensitive applications.
          $312.36
          $312.36
        • Gripset Xpress SP
            Gripset
            Gripset Xpress SP
            Gripset Xpress SP is a rapid-drying, solvent-based primer designed to maximise adhesion of Gripset membranes and adhesives to non-porous and smooth substrates. Engineered for professional waterproofing applications, it delivers a strong bond to surfaces such as metals, PVC, glazed tiles, and natural stone. Fast flash-off times make it ideal for projects requiring quick turnaround without compromising performance.
            $239.00
            $239.00
          • Megapoxy HXMegapoxy HX
            Megapoxy
            Megapoxy HX
            Megapoxy HX: 100% solids, low-viscosity epoxy for concrete crack repair, injection, and lamination. Solvent-free, hydrophilic.
            From $160.32
            From $160.32
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          • Megapoxy LVSMegapoxy LVS
            Megapoxy
            Megapoxy LVS
            Megapoxy LVS is a low viscosity, solvent-free epoxy sealer for concrete, timber, and masonry, providing excellent penetration, sealing, and waterproofing capabilities.
            From $193.33
            From $193.33
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          • RLA Universal Primer
            RLA
            RLA Universal Primer
            Rapid-drying, low-VOC acrylic primer engineered for porous and non-porous substrates. Use diluted (1:2) on standard concrete, neat on non-porous surfaces. Compatible with cement tile adhesives and levelling compounds. Dry to overcoat in 30–60 minutes at 23 °C.
            From $103.67
            From $103.67
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          • RLA Moisture Seal
              RLA
              RLA Moisture Seal
              RLA Moisture Seal is a high-performance, two-part water-based epoxy moisture and vapour barrier system. Engineered for professional waterproofing, it withstands up to 25 metres (250 kPa) of hydrostatic pressure, bonds to damp or “green” concrete, and is fully compatible with RLA membranes, coatings, adhesives, and levelling compounds. Complies with AS 4020 for potable water use, making it ideal for both structural and water storage applications.
              $364.50
              $364.50
            • GCP Epocote F100W Clear Epoxy Primer
              GCP
              GCP Epocote F100W Clear Epoxy Primer
              GCP Epocote F100W is a clear, two-pack, water-based epoxy primer and sealer. Designed for priming damp or green concrete, it offers an exceptionally long pot-life and fast cure, ensuring a tough, chemically resistant bond for professional waterproofing membrane systems.
              From $387.03
              From $387.03
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            • Silcor Primer BS
                GCP
                Silcor Primer BS
                Ensure optimal adhesion for Silcor polyurethane membranes with Silcor Primer BS. This fast-drying, single-pack primer suits most dry (<5% MC) construction substrates like concrete, CFC, masonry, metal & brick. Promotes bond even in cold weather.
                $245.52
                $245.52
              • Mapei Primer G
                Mapei
                Mapei Primer G
                Synthetic resin primer in water dispersion, low VOC, ideal for gypsum, anhydrite and cementitious surfaces. Consolidates substrates, improves adhesion and prevents moisture-related failures.
                From $55.15
                From $55.15
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