Waterproof Sealants

Waterproof sealants are engineered to provide long-lasting, reliable sealing in wet and high-moisture environments. Ideal for use in bathrooms, kitchens, and exterior applications, they ensure robust protection against water ingress. Perfect for trade professionals, these sealants deliver dependable performance in demanding conditions. Browse our waterproof sealants for effective and durable...

Waterproof sealants are engineered to provide long-lasting, reliable sealing in wet and high-moisture environments. Ideal for use in bathrooms, kitchens, and exterior applications, they ensure robust protection against water ingress. Perfect for trade professionals, these sealants deliver dependable performance in demanding conditions. Browse our waterproof sealants for effective and durable sealing solutions.

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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
    • Adheseal Showerseal Sealer
        Adheseal
        Adheseal Showerseal Sealer
        Adheseal Showerseal is a clear, penetrating siloxane/silane sealer that creates a durable hydrophobic barrier in porous substrates. It's the ideal economic solution for stopping leaks in tiled showers and balconies without lifting tiles, while remaining breathable and preserving the surface's look.
        $65.00
        $65.00
      • Gripset E-60Gripset E-60
        Gripset
        Gripset E-60
        Gripset E60 is a two-component, water-based epoxy primer and moisture/vapour barrier for mineral substrates. It can be applied to damp or “green” concrete, resists up to 25 m water head (≈250 kPa), and is AS 4020 compliant for potable water. Pot life ~2 h; recoat ~4 h; overcoat at ~24 h; immersion after 7 days.
        From $94.57
        From $94.57
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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
        • Megapoxy HMegapoxy H
          Megapoxy
          Megapoxy H
          Megapoxy H is a low-viscosity, hydrophilic epoxy resin ideal for various applications, including bonding new to old concrete, crack repair, and underwater repairs. This versatile, 100% solids, solvent-free formula offers excellent mechanical properties and can be used with fine aggregates to create high-strength epoxy mortar. Megapoxy H is VOC-free and complies with AS/NZS 4020 for potable water contact, making it a safe and reliable choice for various projects.
          From $148.50
          From $148.50
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        • Megapoxy HICBMegapoxy HICB
          Megapoxy
          Megapoxy HICB
          Megapoxy HICB is a high-strength, nil VOC epoxy grout designed for crusher backing and heavy-duty industrial applications. With rapid cure options and exceptional compressive strength, it minimizes downtime and extends machinery lifespan.
          $112.50
          $112.50
        • EP Waterproofing System
          Enviro Pacific
          EP Waterproofing System
          Penetrating, non-film forming polyester-polymer treatment that waterproofs and hardens concrete, brick, render and most masonry from within. Spray applied at ~5–7 m²/L, passes negative hydrostatic pressure to 60 psi, paintable once dry.
          From $150.00
          From $150.00
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        • Efflock Hydrophobic AdditiveEfflock Hydrophobic Additive
          Efflock
          Efflock Hydrophobic Additive
          VOC-free, water-based additive for screeds, adhesives, grouts, renders and concrete. Reduces water absorption, controls efflorescence, and repels contaminants while remaining vapour-permeable. Compatible with waterproofing membranes and Australian site conditions.
          From $91.95
          From $91.95
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        • EP Waterproof Supreme
          Enviro Pacific
          EP Waterproof Supreme
          One-coat penetrating treatment for concrete, brick, render and masonry. Sprays on (≤20 psi) at 4–6 m²/L, then cures to harden, densify and waterproof from within. Non-toxic, non-hazardous, non-flammable; compatible with conventional sealants, adhesives and paints.
          From $150.00
          From $150.00
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        • 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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        • Duram S900
            Duram
            Duram S900
            Clear, high-pH siloxane sealer that penetrates porous masonry to form a sub-surface weatherproof barrier while allowing vapour diffusion. Suited to concrete, render, face brick, sandstone and porous pavers. Wet-on-wet saturation application; dries clear. Typical cure 12–24 h.
            $229.46
            $229.46
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