Waterproof Sealants

Stop moisture failures with trade-grade waterproof sealants designed for predictable performance. For high-pressure hydrostatic environments, RLA Moisture Seal and Gripset E-60 provide a reliable vapour barrier on damp or green concrete. If you need to stop leaks without lifting tiles, Adheseal Showerseal Sealer delivers a first-time-right penetrative finish. These systems...
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  • 
    Adheseal Primer VBS two-part water-based epoxy pails: Part A (blue) & Part B (white) – seals concrete vapour barrier, prev...
      Adheseal
      Everflex VBS
      Stop moisture failures. Primer VBS is a professional 2-part vapour barrier and primer. It creates a reliable seal, ensuring your flooring or coating job lasts.
      $364.85
      $364.85
    • 
      Adheseal Showerseal 1L Clear Non-Glossy Penetrating Sealer - Waterproof Low VOC Shower Waterproofing Liquid
        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
      • 
        Two Gripset E60 pails: water-based epoxy primer seals damp/green concrete, moisture vapour barrier for waterproofing membr...Gripset 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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      • 
        Two 10L pails RLA Moisture Seal Part A & B: water-based epoxy vapour barrier primer blocks moisture on damp concrete for w...
          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.
          $386.10
          $386.10
        • 
          Megapoxy H low-viscosity hydrophilic epoxy resin kit: Part A pail, Part B bottle for crack injection, concrete bonding, po...Megapoxy H
          Megapoxy
          Megapoxy H
          Need a structural epoxy for crack injection or potable water repairs? Megapoxy H is a low-viscosity, hydrophilic, AS 4020 certified resin for your most critical jobs.
          From $148.50
          From $148.50
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        • 
          Megapoxy HICB epoxy grout kit: 8kg Part A pail, 2kg Part B bottle for high-impact crusher liner backing, 115MPa strength.Megapoxy 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.
          $115.88
          $115.88
        • 
          Enviro Pacific EP Waterproofing System 20L: penetrating sealer densifies concrete/masonry, waterproofs internally, prevent...
          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 $46.50
          From $46.50
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        • 
          White 20L Efflock jerry can with water-bead graphic; hydrophobic additive controls efflorescence, damp in screeds, grouts,...Efflock 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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        • 
          20L EP Waterproof Supreme penetrating waterproofer: seals concrete/masonry from within, stops moisture ingress & dusting.
          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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        • 
          15L GCP Epocote F100W Clear epoxy primer pail bonds damp concrete, seals efflorescence for waterproofing membranes & tiling
            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 15L pail: clear siloxane sealer penetrates porous masonry, forms sub-surface waterproof barrier, reduces efflor...
              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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