Waterproofing Products for Reliable, Long-Term Protection

Sydney weather can turn quickly. One heavy storm, a poorly sealed balcony, or a damp slab edge can turn a minor oversight into mould, cracking, swelling, and costly rectification.

Waterproofing Products are the quiet safeguard of any build, which protect structures long after completion. When done properly, waterproofing prevents water ingress, preserves structural integrity, and reduces expensive callbacks.

Atex Supplies is a trusted Sydney supplier of professional waterproofing systems for builders, contractors, engineers, and homeowners. We provide quality materials, practical advice, and reliable supply across residential, commercial, and industrial projects.

Explore our range and request a quote today.

Our Waterproofing Product Range

We supply a comprehensive range of professional waterproofing materials suitable for demanding site conditions.

Backing Rods

Foam rods installed into joints prior to sealant application. They control sealant depth and allow movement without failure.

Cementitious Waterproofing

Cement-based coatings applied to concrete or masonry to create a durable water-resistant barrier. Ideal for retaining walls, tanks, and structural substrates.

Membranes

Liquid-applied and sheet membrane systems that form a continuous waterproof barrier across balconies, bathrooms, rooftops, planter boxes, and podium decks.

Primers

Surface preparation products that improve membrane adhesion and long-term system performance.

Waterproofing Accessories

Corflute for membrane protection
Drainage cells for relieving hydrostatic pressure

Fibreglass matting for reinforcing corners and joints
PVC waterproofing angles for neat, leak-resistant detailing

We stock reputable brands and systems suitable for exposed, hydrostatic, under-tile, underground, and immersed applications.

Why Waterproofing Is Critical in Construction

Water finds its way through:

Hairline cracks

Construction joints

Service penetrations

Porous concrete and masonry

Unchecked moisture can lead to:

Tile failure and bubbling membranes

Corrosion of reinforcement

Timber swelling

Concrete spalling

Mould and mildew growth

Using the right Waterproofing Products protects wet areas, balconies, roofs, retaining walls, and below-ground structures from long-term deterioration. Our systems are suited to Australian conditions and align with key standards, including:

AS 3740

Waterproofing of internal wet areas

AS 4654

Waterproofing membranes for external above-ground use

Atex Supplies operates under ISO-aligned quality systems, supporting consistent, dependable product supply across all projects.

Waterproofing Solutions for Every Project Type

Each project requires the correct system selection, detailing, and preparation to ensure long-term performance.

How to Choose the Right Waterproofing Products

Start by identifying:

Substrate type (concrete, masonry, timber, metal)

Exposure conditions (internal, UV-exposed, below-ground)

Movement expectations (joints, penetrations, transitions)

Chemical or wash-down requirements

External and below-ground areas often require both waterproofing and drainage solutions. High-movement areas need flexible membranes with proper reinforcement at corners and joints.

If you’re unsure, our team can recommend a suitable system and compatible accessories to suit your build.

With over 30 years in the construction supply industry, Atex Supplies understands real site pressures – inspections, deadlines, and changing conditions.

Why Choose Atex Supplies?

We’re known for:

Trusted Product Range

Reliable waterproofing materials suitable for Australian standards and site demands.

Competitive Pricing

Trade-friendly rates without compromising quality.

Practical Advice

Clear, experience-based guidance for correct product selection and detailing.

Sydney-Wide Supply

Convenient pickup and dependable delivery when you need it.

What Our Customers Say

Fortunata – Masscon Hurstville

Joey Pamment

Antonios Zeait

Paul Rodasky

Mahela

Tony

John – Mason – Hurstville

FAQs

What Are the Best Waterproofing Products for Concrete?

Cementitious waterproofing coatings and liquid or sheet membrane systems are commonly used for concrete. Most applications also require a compatible primer and reinforcement at corners and penetrations.

How Do I Choose the Right Waterproofing System?

Match the system to the substrate and exposure conditions. Internal wet areas, UV-exposed balconies, and below-ground structures all require different solutions, often including primer, membrane, and detailing accessories.

What Is the Difference Between Sheet and Liquid Membranes?

Sheet membranes are rolled out and joined at seams, providing consistent thickness. Liquid membranes are applied by roller or brush and cure into a seamless layer, depending on correct application thickness.

Can Waterproofing Products Be Used for Residential Projects?

Yes. Waterproofing is essential in bathrooms, laundries, kitchens, balconies, and other moisture-prone residential areas.

How Long Do Waterproofing Systems Last?

Lifespan varies depending on product type, exposure, and installation quality. Many systems last 10 years or more, particularly in protected internal environments.

Protect Your Build with Quality Waterproofing Products

Water damage is expensive. Proper waterproofing prevents structural issues, protects finishes, and reduces long-term maintenance costs.

Atex Supplies provides dependable Waterproofing Products, competitive pricing, and expert support to help you get it right the first time.

Explore our range or contact our team for advice and a quote.