Waterproofing Membranes

The LiquiMix range of waterproofing membrane systems and waterproofing spray coating solutions include 1K waterbase RoofProof, Hybrid Polyurea Hybron W90, Polyurethane Polytuff-21 and Pure Polyurea Elaston-W80. These products are Class III waterproofing membranes for Interior and Exterior Waterproofing requirements. They are suitable for interior and exterior waterproofing applications (Approved AS4858 liquid membrane & S4654.1 exposed liquid membrane)

High-Performance Waterproofing Membranes

Water is one of the most damaging elements a structure can face. From slow leaks to full exposure, moisture can compromise concrete, steel, and timber over time, leading to corrosion, mould, structural issues, and costly repairs. That’s why high-performance waterproofing membranes are a non-negotiable in both new builds and remedial works.

At Liquimix, we supply high-quality waterproofing membranes designed to withstand the toughest Australian conditions. Our range includes the innovative WetProof, RoofProof, Opalon-W90, and Elaston-W80, designed to meet the stringent requirements of both interior and exterior waterproofing. These products represent the cutting edge in aliphatic polyurethane-modified, polyaspartic flooring, and polyurea coatings.

From rooftops and balconies to retaining walls and car parks, our advanced membrane systems are engineered to protect against water ingress, UV exposure, and general wear and tear. Whether you need atrafficable waterproof membrane for high-traffic areas or a clear waterproofing membrane for visual finishes, we offer durable, flexible solutions for a wide range of applications.

With years of industry experience and a deep understanding of local site demands, Liquimix is the go-to membrane waterproofing supplier for professionals across construction, coatings, and civil works.

Different projects demand different solutions. Factors like surface type, exposure to UV, foot or vehicle traffic, and finish preferences all influence which exterior waterproofing membrane is right for the job. The wrong product can peel, crack, or delaminate, leaving you back at square one.

That’s where performance-built systems like trafficable waterproofing membranes or clear waterproofing membranes come in. Designed to perform under pressure (literally), these advanced coatings provide watertight barriers without compromising usability or aesthetics.

Our waterproofing products are formulated for:

  • Basement and below-grade protection
  • Rooftops and exposed balconies
  • Wet areas, including bathrooms and laundries
  • Podiums, terraces, and planter boxes
  • Retaining walls and foundation systems
  • Car parks, driveways, and other trafficable surfaces

Whether you’re working on a new build or a remedial project, Liquimix offers exterior grade waterproofing systems that deliver long-term performance and ease of application. We also supply companion products such as concrete gap filler, expansion joint filler, and epoxy floor coating to ensure your project is protected from every angle.

In high-use areas such as rooftop terraces, balconies, or multi-storey car parks, you need a trafficable membrane that can withstand foot traffic, wheel loads, and environmental stress without compromising its waterproofing performance. Liquimix supplies a range of trafficable waterproof membranes that combine durability with flexibility. These membranes can be used as standalone systems or as a base layer beneath protective coatings like polyaspartic or polyurethane systems. This makes them ideal for waterproofing areas that will later be finished with industrial floor coating.

For projects where the appearance of the surface matters, such as decorative concrete, stone, or tiled finishes, a clear waterproofing membrane provides invisible protection without altering the look of the material.

These membranes are ideal for use with exposed finishes like flake flooring or polished concrete. Breathable, UV-stable and compatible with a wide range of substrates, these membranes are ideal for clients looking to preserve the aesthetic of natural finishes while adding an extra layer of water resistance.

Australian weather conditions demand tough, reliable exterior waterproofing products. At Liquimix, we offer membrane systems specifically formulated for use in outdoor applications. Our range of exterior waterproofing membranes includes products suitable for exposed walls, decks, planters, and facade systems.

For exterior waterproofing, RoofProof is our flagship 1k product. The single-component, water-based, aliphatic polyurethane-modified waterproofing membranes excel in outdoor environments, adhering to the AS/NZS 4858-2004 Class III standard. Roofproof offers unparalleled elasticity, flexibility, and resistance to environmental elements.

Each membrane is engineered for long-lasting performance in harsh environments and can be applied via roller, brush, or spray, depending on the site requirements. As trusted waterproofing membrane suppliers, we ensure our exterior systems meet the needs of builders, applicators, and project managers across the country.

We also supply a full range of complementary products, including chemical bundingwater tank liners, and ground stabilisation systems for complex site conditions.

As experienced waterproofing product manufacturers, Liquimix takes pride in offering membrane systems that deliver results in the real world. Our formulations are backed by decades of research, on-site performance, and a commitment to helping our customers get the job done right.

  • Local knowledge: Australian-made systems suited to our climate and regulations
  • Flexible systems: Trafficable, clear, and exterior membranes to suit every application
  • Easy application: Fast-setting products compatible with spray, roller, or brush
  • Trusted support: Our expert team can help you select the right product and ensure correct installation methods

Whether you’re an applicator, project manager, or procurement officer, Liquimix is your reliable membrane waterproofing supplier. We provide clear guidance, quality materials, and dependable service across all stages of your waterproofing project.

From trafficable waterproofing membranes to exterior waterproofing systems, Liquimix delivers dependable protection for structures that need to last. Our membranes are trusted in residential, commercial, and industrial applications across Australia.

Browse our full range of waterproofing products or contact the Liquimix team for product specifications, safety data sheets, or advice on your next project.

Whatever your interior or exterior waterproofing requirements, the LiquiMix waterproofing membrane coating range offers the solution to your needs. From single-component, water-based, aliphatic polyurethane-modified coating products, like WetProof and RoofProof, to 100% solids, two-component polyaspartic coatings (Opalon-W90) and the environmentally-friendly pure polyurea Elaston W-80, our waterproof membrane paint range covers the requirements of all asset owners and contractors seeking a high-performance waterproofing solution. Contact LiquiMix for further information and sales support.

 

WetProof and RoofProof Features

  • Certified for waterproofing — AS/NZS 4858-2004 (internal and exterior when exposed to UV)
  • Water-based — safe and easy to clean tools
  • Single-component — no mixing required.
  • New generation, latest technology, hybrid polyurethane
  • Free from dangerous materials like coal tar and bitumen
  • High elasticity and flexibility
  • High tensile strength and elongation
  • Excellent resistance to weathering agents like UV, sunlight, frost and rain
  • Complies with all environmental and health regulations
  • Eligible for green building regulations

Elaston-W80 features

  • Approved for use with potable water AS4020
  • Forms a thick film, seamless lining
  • Bridges hairline concrete cracks
  • Chemical resistant
  • Permanently elastomeric
  • Smooth and seamless easy-clean lining
  • Abrasion-resistant
  • Won’t flake, peel or blister
  • Performs even on slightly damp concrete
  • Environmentally friendly – no VOCs – no catalyst
  • Low-viscosity and easy to spray

Opalon W-90 Features

  • Fast curing — ready for foot traffic after just 2 hours
  • Easy to apply — can be applied with plural-component spray equipment or pre-mixed and applied with a roller or conventional airless spray
  • Versatile — Suitable for an array of applications, including swimming pools, garages, caravans and boats

Hybron®H90 Features

  • Exceptionally Durable
  • Free from Solvents
  • Rapid Curing Time
  • Consistently Elastic
  • Medium to High Thickness
  • Resistant to Wear and Tear

POLYTUFF®-21 Features

  • Elastic
  • Contains No Solvents
  • Outstanding Resistance to Abrasion
  • Effective Chemical Resistance
  • Minimal Heat Release During Reaction
  • Extremely Robust

Industry-Leading Solutions for Your Waterproofing Needs 

Whatever your interior or exterior waterproofing requirements, the LiquiMix waterproofing membrane coating range offers the solution to your needs. From single-component, water-based, aliphatic polyurethane-modified coating products, like WetProof and RoofProof, to 100% solids, two-component polyaspartic coatings (Opalon-W90) and the environmentally-friendly pure polyurea Elaston W-80, our waterproof membrane paint range covers the requirements of all asset owners and contractors seeking a high-performance waterproofing solution. Contact LiquiMix for further information and sales support. 

WetProof and RoofProof Features 

  • Certified for waterproofing — AS/NZS 4858-2004 (internal and exterior when exposed to UV)
  • Water-based — safe and easy to clean tools
  • Single-component — no mixing required.
  • New generation, latest technology, hybrid polyurethane
  • Free from dangerous materials like coal tar and bitumen
  • High elasticity and flexibility
  • High tensile strength and elongation
  • Excellent resistance to weathering agents like UV, sunlight, frost and rain
  • Complies with all environmental and health regulations 
  • Eligible for green building regulations

Elaston-W80 features 

  • Approved for use with potable water AS4020
  • Forms a thick film, seamless lining
  • Bridges hairline concrete cracks
  • Chemical resistant
  • Permanently elastomeric
  • Smooth and seamless easy-clean lining
  • Abrasion-resistant
  • Won’t flake, peel or blister
  • Performs even on slightly damp concrete
  • Environmentally friendly – no VOCs – no catalyst
  • Low-viscosity and easy to spray

Opalon W-90 Features 

  • Fast curing — ready for foot traffic after just 2 hours 
  • Easy to apply — can be applied with plural-component spray equipment or pre-mixed and applied with a roller or conventional airless spray 
  • Versatile — Suitable for an array of applications, including swimming pools, garages, caravans and boats 

Hybron®H90 Features

  • Exceptionally Durable
  • Free from Solvents
  • Rapid Curing Time
  • Consistently Elastic
  • Medium to High Thickness
  • Resistant to Wear and Tear

POLYTUFF®-21 Features

  • Elastic
  • Contains No Solvents
  • Outstanding Resistance to Abrasion
  • Effective Chemical Resistance
  • Minimal Heat Release During Reaction
  • Extremely Robust

Related Applications

Related Products

FAQs

How do I choose the right waterproofing membrane?
Selecting the right membrane depends on the surface type, exposure conditions, and whether the area is trafficable. Consider factors like UV stability, flexibility, chemical resistance, and application method to ensure the membrane meets both performance and aesthetic requirements.
When should a clear waterproofing membrane be used?
Clear waterproofing membranes are ideal when you want to preserve the visual appearance of the surface, such as decorative concrete, tiles, or stone. These membranes provide water resistance without altering the look or texture of the underlying material.
Can waterproofing membranes be used on exterior surfaces?
Yes, exterior-grade waterproofing membranes are specifically formulated to handle exposure to UV rays, weather, and temperature changes. They’re suitable for decks, walls, planters, and facades where long-term moisture protection is needed in outdoor environments.
What is a trafficable waterproof membrane?
A trafficable waterproof membrane is designed to withstand foot traffic or vehicle loads while providing a watertight barrier. It’s commonly used on balconies, terraces, rooftops, and car parks, where durability and ongoing waterproof performance are essential in high-use areas.

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