Waterproofing
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Builders Mitre 10 Gripset Betta Prep Coat Primer 4L
The Gripset Betta Prep Coat Primer (4L) enhances adhesion and uniformity for membranes, adhesives and coatings across a range of substrates. Suitable for concrete, masonry, fibre-cement and suitably prepared sealed surfaces. It reduces suction and surface dusting for improved film formation and durability. Low odour, water-based formulation allows easy application and clean-up. Apply by brush or roller to clean, sound substrates and follow manufacturer guidelines for drying times and subsequent coating application.
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Builders Mitre 10 Gripset Betta Primer Damp Stop 4L
Gripset Betta Damp Stop Waterproofing Primer (4L) is formulated to suppress residual moisture and efflorescence in concrete and masonry, improving adhesion of waterproofing systems. Ideal for basements, wet areas and damp substrates prior to membrane application. Easy to apply by roller or brush, with low odour and water clean-up. Ensure surfaces are clean and sound; follow recommended recoat times and coverage for effective moisture control and long-term system performance.
$185.00
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Builders Mitre 10 Gripset Betta Reinforcing Fabric 10m
Gripset Betta Reinforcing Fabric (10m) is a flexible polyester fabric designed to strengthen liquid-applied waterproofing systems. Used to bridge joints, cracks and transitions, it improves durability and resistance to movement and stress. Easy to cut and embed between membrane coats, it conforms to corners and penetrations for a seamless finish. Ideal for wet areas, balconies and external façades. Apply over clean, primed substrates and fully wet-out with compatible membranes for reliable reinforcement.
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Builders Mitre 10 Gripset Betta Under Tile Waterproofing Membrane 15L
Gripset Betta Under Tile Waterproofing Membrane (15L) is a flexible, water-based membrane designed for bathrooms, showers, laundries and balconies prior to tiling. It forms a seamless barrier that helps prevent water ingress and substrate damage. Compatible with common tile adhesives, it applies by brush, roller or trowel over clean, primed surfaces. Low odour and easy water clean-up. Follow system specifications for primer selection, drying times and reinforcement at corners and penetrations.
$270.00
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Builders Mitre 10 Gripset Betta Under Tile Waterproofing Membrane 1L
The Gripset Betta Under Tile Waterproofing Membrane (1L) provides a flexible, seamless barrier for wet areas such as showers, bathrooms and laundries prior to tiling. Water-based for low odour and easy clean-up, it can be applied by brush, roller or trowel over primed, clean substrates. Use reinforcing tape at corners and penetrations for added durability. Compatible with common tile adhesives. Observe recommended coat thicknesses and curing times for dependable long-term performance.
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Builders Mitre 10 Gripset Betta Under Tile Waterproofing Membrane 4L
Gripset Betta Under Tile Waterproofing Membrane (4L) is a flexible, water-based system for wet area protection under ceramic and stone tiles. Ideal for showers, bathrooms, laundries and balconies, it forms a seamless waterproof layer when applied to clean, primed substrates. Easy to apply by brush, roller or trowel, with low odour and water clean-up. Reinforce corners, junctions and penetrations as required, and follow specified drying times for reliable tiling and long-term performance.
$104.00
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Builders Mitre 10 Gripset Betta Waterproofing Detailing Elastic Joint Band 5m
The Gripset Betta Elastic Joint Band is a 5m pre-formed, highly elastic waterproofing band designed to reinforce and seal expansion and movement joints. It bridges cracks and accommodates structural movement to prevent leaks in wet areas, balconies, basements, and facades. Compatible with common liquid membranes and coatings, it improves system durability and simplifies detailing at vulnerable junctions. Ideal for new builds and repairs, the band installs quickly, adheres strongly, and maintains flexibility for long-term performance in internal and external applications.
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Builders Mitre 10 Gripset Betta Waterproofing Detailing Internal Corner 90 Degree
The Gripset Betta 90° Internal Preformed Corner provides a fast, reliable solution for reinforcing internal corners within waterproofing systems. Engineered to eliminate weak points at junctions, it ensures consistent membrane thickness and superior sealing performance. Ideal for showers, bathrooms, balconies, planter boxes, and wet areas, it speeds installation and reduces risk of leaks. Compatible with most liquid membranes and primers, it offers high durability, excellent adhesion, and long-term flexibility. Use during new construction or remedial works to achieve professional, long-lasting waterproofing results.
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Builders Mitre 10 Gripset Betta Waterproofing Pond Sealer Clear 1L
Gripset Betta Clear Pond Sealer is a 1L waterproof coating formulated for ponds, water features, and decorative basins. It creates a durable, flexible barrier that helps prevent water loss while maintaining a clear finish to showcase surfaces beneath. Suitable for masonry, concrete, and stone substrates, it is easy to apply by brush or roller and cures to a long-lasting, UV-resistant seal. Ideal for new builds and restorations, it improves longevity, reduces maintenance, and enhances the appearance of aquatic installations.
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Builders Mitre 10 Gripset Betta Waterproofing Sleeve
The Gripset Betta Pipe Penetration Sleeve provides a reliable waterproofing detail around pipes and service penetrations through walls, floors, and wet areas. Designed to simplify installation, it creates a consistent, flexible seal to minimise leaks and movement-related cracking. Compatible with most liquid membranes and sealants, it suits bathrooms, balconies, planter boxes, basements, and façades. Use during new construction or remedial work for improved durability and system performance. Quick to apply and long lasting, it helps deliver professional waterproofing outcomes at critical junctions.
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Builders Mitre 10 Gripset Betta Weather Seal 1L
Gripset Betta Weather Seal is a 1L penetrating water repellent designed to protect masonry, brick, concrete, render, and stone from moisture ingress. It reduces water absorption while maintaining vapour breathability, helping prevent efflorescence, mould growth, and surface degradation. Ideal for facades, fences, and retaining walls, it preserves the natural appearance with minimal sheen. Easy to apply by brush, roller, or spray, it provides long-lasting protection against rain and weathering, improving durability and reducing maintenance on residential and commercial projects.
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Builders Mitre 10 Gripset Betta Weather Seal 4L
Gripset Betta Weather Seal in the 4L pack is a penetrating water repellent for brick, masonry, concrete, render, and stone. It reduces moisture absorption while allowing substrates to breathe, helping control efflorescence, damp staining, and mould growth. Suitable for exterior walls, facades, and porous horizontal surfaces, it retains the natural look with minimal change in appearance. Apply by brush, roller, or spray for uniform coverage. Ideal for larger projects, it delivers durable weather protection and reduces ongoing maintenance in residential and commercial environments.
$113.00
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Builders Mitre 10 Gripset Elast 80mm Butyl Waterproof Tape 5m
Gripset Elast Butyl Waterproof Tape is an 80mm x 5m self-adhesive sealing tape for fast, effective waterproofing of joints, cracks, and penetrations. Featuring a flexible butyl rubber core with a surface-ready facer, it provides instant adhesion and long-term elasticity. Ideal for roofs, gutters, balconies, wet areas, and façade repairs, it bridges movement and irregular surfaces while resisting weather and UV exposure. Easy to apply without heat, it reduces installation time and enhances durability when used alone or under liquid-applied membranes.
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Blacktown Building Supplies Liquid Flash Waterproofing Membrane
Liquid Flash is a brush-on waterproofing membrane that creates a seamless, flexible barrier for internal and external applications. Ideal for showers, bathrooms, balconies, and roof repairs, it adheres to common substrates including concrete, masonry, and FC sheeting. Easy to apply with a brush or roller, it bridges hairline cracks and offers fast recoat times. Once cured, it provides a tough, waterproof surface ready for tiling or protective coatings. A versatile, user-friendly solution for DIY and professional waterproofing tasks.
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Sydney Hardware MAPEI ECO PRIM T-PLUS - 20 Lts
MAPEI ECO PRIM T-PLUS is a ready-to-use, low-VOC acrylic primer that promotes adhesion on both absorbent and non-absorbent substrates prior to levelling compounds and tile adhesives. Supplied in a 20L pail, it rolls or brushes on easily and dries quickly to reduce downtime. Suitable for concrete, existing tiles, and timber underlays, it improves bond, reduces porosity, and helps achieve consistent results. For internal and some external applications; always follow the technical data sheet for preparation and coverage.
$282.00
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Sydney Hardware MAPEI ECO PRIM T-PLUS - 5 Lts
MAPEI ECO PRIM T-PLUS is a ready-to-use acrylic primer that enhances adhesion for levelling compounds and tile adhesives on a wide range of substrates. The 5L pack is convenient for bathrooms, kitchens, and smaller projects, offering fast application and quick drying. Suitable for concrete, cement screeds, existing tiles, and timber underlays, it reduces absorbency and promotes a uniform bond line. Low odour and low VOC, it’s ideal for internal works and refurbishment projects.
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Sydney Hardware MAPEI FOUNDATION WATERPROOF 32 KGS - MAPEI FOUNDATION WATERPROOF 32 KGS
MAPEI FOUNDATION WATERPROOF is a cementitious waterproofing coating designed for protecting below-grade structures such as foundations, retaining walls, basements, and planter boxes. Supplied in a 32kg pack, it creates a durable, water-resistant barrier on concrete and masonry. It applies by brush or trowel and cures to a tough, protective film that resists moisture ingress. Suitable for internal and external use. Ideal as part of a comprehensive waterproofing system; consult the data sheet for substrate preparation and coverage.
$282.00
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Sydney Hardware MAPEI MAPELASTIC AQUADEFENSE ZERO 15LTS - MAPEI MAPELASTIC AQUADEFENSE ZERO 15LTS
Mapelastic AquaDefense Zero is a ready‑to‑use, fast‑drying liquid waterproofing membrane delivering rapid turnarounds with ultra‑low VOCs. Suitable for internal wet areas such as bathrooms, showers, laundries and kitchens, it forms a flexible, seamless barrier over concrete, render, screeds, fibre‑cement and plasterboard. Easy to apply by roller or brush, it dries quickly for early tiling and provides excellent crack‑bridging. Choose AquaDefense Zero for dependable moisture protection, safer indoor air quality and consistent jobsite productivity.
$165.00
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Sydney Hardware MAPEI MAPELASTIC SMART 20kgs + 10 lts - MAPEI MAPELASTIC SMART 20kgs + 10 lts
Mapelastic Smart is a two‑component, flexible cementitious waterproofing membrane for balconies, terraces, facades and wet areas. The 20kg powder + 10L liquid kit combines high crack‑bridging capability with excellent adhesion to concrete, screeds, renders and masonry. Suitable under tiles in internal and external applications, it forms a durable, seamless barrier that accommodates thermal movement and minor substrate flexing. Easy to apply by roller, trowel or brush, it delivers long‑term moisture protection in demanding environments.
$229.00
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Sydney Hardware MAPEI PRIMER G - 1 KG
Primer G is a water‑based acrylic primer formulated to consolidate dusty, porous substrates and improve adhesion of levelling compounds, adhesives and membranes. The 1kg bottle is ideal for small rooms and touch‑ups. Suitable over cement screeds, concrete, render, plasterboard and fibre‑cement, it reduces substrate absorbency for more consistent coverage and extended open time. Low odour and easy to apply by roller or brush, it promotes strong, uniform bonds and helps prevent premature drying.
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Sydney Hardware MAPEI PRIMER G - 25 KGS
Primer G is a water‑based acrylic primer that binds dust, reduces absorbency and enhances adhesion on porous substrates before levelling compounds, adhesives or waterproofing. The 25kg drum suits large projects and frequent use. Apply by roller or brush to concrete, screeds, renders, plasterboard and fibre‑cement. Its low odour, easy handling and reliable performance improve workability and coverage of subsequent products, helping achieve stronger, more consistent bonds and reducing the risk of pinholing and premature drying.
$226.00
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Sydney Hardware MAPEI PRIMER G - 5 KGS
Primer G is a water‑based acrylic primer for consolidating porous substrates and promoting adhesion of levelling compounds, tile adhesives and membranes. The 5kg size balances coverage and portability for everyday site work. Suitable for concrete, screeds, renders, plasterboard and fibre‑cement, it reduces absorbency to deliver more consistent curing and improved bond strength. With low odour and easy application by roller or brush, Primer G supports reliable, professional results across residential and commercial projects.
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Blacktown Building Supplies Maxseal Foundation 25kg DRIZORO
DRIZORO Maxseal Foundation is a cement-based waterproof coating for concrete and masonry subjected to ground moisture and hydrostatic pressure. Supplied in a 25 kg bag, it’s applied by brush or spray to protect basement walls, retaining walls, lift pits, and water infrastructure. Suitable for both positive and negative pressure, it seals pores, adheres strongly, and remains breathable. Ideal for new builds or remedial works, it provides long-term protection against water ingress when applied over clean, sound substrates per instructions.
$175.65
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Sydney Hardware RAP WESTOX - 20 Lts
RAP WESTOX is a professional-grade solution for desalination and salt extraction from masonry, brick and render. The 20L size suits large restoration and damp remediation projects. Formulated to draw out soluble salts and contaminants that cause efflorescence and surface deterioration, it supports long-term conservation outcomes. Apply by brush, roller or as directed within the system specification. Ideal for heritage buildings and coastal environments. For best results use in conjunction with RAP WESTOX Primer and follow recommended application cycles.
$250.00
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Sydney Hardware RAP WESTOX - 5 Lts
RAP WESTOX is a specialised desalination solution for extracting soluble salts from masonry, brick and render to reduce efflorescence and decay. The 5L pack is ideal for smaller areas, test patches and detailing work. Suitable for heritage restoration and damp remediation in coastal and saline environments. Apply by brush or roller as specified, often in conjunction with poultice techniques. Use with RAP WESTOX Primer for optimal penetration and even performance. Follow system guidelines for cycle times and safe, effective outcomes.
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Sydney Hardware RAP WESTOX - 5 Lts Primer
RAP WESTOX Primer enhances the performance of the RAP WESTOX desalination system by promoting even penetration and consolidating porous or friable masonry. The 5L pack is suited to prep work on heritage brick, stone and render before salt extraction cycles. Low odour and easy to apply by brush or spray, it helps ensure consistent results and improved adhesion of subsequent treatments. Use as directed within the RAP WESTOX system to support effective salt migration control and long-term surface preservation.
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Sydney Hardware SALT RETARDER - 20 Lts
Salt Retarder is a liquid admixture designed to reduce salt migration and efflorescence in cement-based mortars, renders and plasters. The 20L size is ideal for large projects in coastal or saline environments and damp-prone substrates. It improves durability and surface appearance by inhibiting soluble salts from reaching the surface. Easy to dose into mixes and compatible with standard cementitious materials. Suitable for bricklaying, rendering and repair works. Follow recommended dosage rates and good site practices for best results.
$199.00
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Sydney Hardware SALT RETARDER - 5 Lts
Salt Retarder is a liquid admixture formulated to minimise efflorescence and salt-related staining in cement mortars, plasters and renders. The 5L pack suits smaller jobs, maintenance and detailing. By inhibiting the movement of soluble salts, it helps maintain a cleaner, longer-lasting finish on brickwork and rendered surfaces, especially in coastal or damp conditions. Simple to incorporate into mixes and compatible with common cementitious materials. Use according to dosage guidelines and sound construction practices for reliable performance.
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Sydney Hardware SOLUTIONS GRIP ENHANCER [ SILACRYL ] - 125 grams
SOLUTIONS GRIP ENHANCER [ SILACRYL ] in a 125g pack increases slip resistance on tiles, stone and concrete without significantly altering appearance. Ideal for entries, bathrooms, ramps and wet areas, it’s quick to apply and dries fast for minimal downtime. Use for touch-ups, small areas or trial applications. Provides reliable traction enhancement to help meet safety goals in residential and commercial settings. Always test in an inconspicuous area and follow surface preparation and application guidelines.
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Sydney Hardware SOLUTIONS GRIP ENHANCER [ SILACRYL ] - 250 grams
This 250g SOLUTIONS GRIP ENHANCER [ SILACRYL ] treatment improves slip resistance on ceramic tiles, natural stone and concrete surfaces. Suitable for bathrooms, kitchens, entries and ramps, it’s easy to apply and fast drying, helping improve safety with minimal downtime. Ideal for targeted areas or small projects, it enhances traction while maintaining a clean, professional finish. Test first to confirm appearance and performance, and follow preparation and application instructions for best, long-lasting results.
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Sydney Hardware SOLUTIONS GRIP ENHANCER [ SILACRYL ] - 50 grams
SOLUTIONS GRIP ENHANCER [ SILACRYL ] in a 50g size is perfect for small areas, samples and touch-ups. Use it to boost slip resistance on tiles, stone and concrete in wet or high-traffic zones such as showers, laundries and entryways. Quick to apply and fast drying, it offers a practical safety upgrade with minimal disruption. Conduct a test patch to confirm compatibility and finish, and follow preparation and application instructions to achieve durable, consistent results.
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Sydney Hardware Tile Grip 1L - Tile Grip 1L
Tile Grip 1L is an anti-slip surface treatment formulated to improve wet traction on ceramic, porcelain and natural stone tiles. Ideal for bathrooms, entries, ramps and pool surrounds, it helps reduce slip hazards without significantly changing the appearance when used as directed. Easy to apply with brush, roller or mop, it works quickly to deliver a more secure underfoot feel. Always test in a discreet area and follow instructions to achieve consistent, long-lasting performance.
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