Ardex WPM 300

ARDEX WPM 300 (HydrEpoxy 300) is a two-component, water-based epoxy polyamide membrane/barrier coating. Approved for use with potable (drinking) water, it has been independently tested to confirm compliance with AS4020:2000 and BS6920.

We supply ARDEX WPM 300, designed to offer:

• Water Resistance: Prevents rising dampness and efflorescence while withstanding hydrostatic pressure.
• Excellent Adhesion: Bonds effectively to various substrates, including damp surfaces and freshly laid green concrete.
• Safety for Sensitive Locations: Ideal for environments requiring careful consideration and safety.

Features/Benefits Include:

• Non-flammable and negligible odour
• Can be applied to damp surfaces
• Can be safely applied to freshly laid hardened (green) concrete
• Conforms to requirements of the Building Code of Australia as a waterproofing membrane
• Conforms to the requirements of Australian standard 4020 – 2000 and British Standard 6920 for use in contact with potable water
• When applied directly to the substrate, the cured membrane will withstand 250kPa of hydrostatic pressure which is equivalent to a 25 metre head of water
• When used wet on wet over ARDEX WPM 256 Bonding Bridge the cured membrane will withstand 400kPa of pressure which is equivalent to 40 metre head of water
• Can be overcoated using almost any decorative or industrial finishing paint
• Prevents rising dampness and the formation of efflorescence when used as a single-coat barrier coat
• Has excellent adhesion to most substrates, including brick, masonry, concrete block, concrete, stone and timber
• Easy clean-up using water

Typical Applications

• As a low water vapour transmission coating in the building and construction industries and as a barrier/seal coating over freshly laid or damp concrete
• As a hydrostatic pressure-resistant waterproofing membrane to prevent water seepage or dampness penetration through to the interior of walls and floors
• As a waterproofing barrier on the negative side in below-grade surfaces such as basements, tunnels, liftwells, retaining walls and carparks
• As a waterproofing membrane or barrier coating over freshly laid hardened (green) concrete, prior to the application of conventional levelling compounds, carpet and tile adhesives
• As a waterproofing membrane in tanking applications, including potable water containment
• As a barrier seal coating over damp, green or efflorescence-producing concrete prior to overcoating with conventional building paints.

If you’re unsure whether ARDEX WPM 300 is the right waterproofing product for your project, we can help.
We supply a full range of liquid waterproofing membranes and can provide expert guidance to ensure you choose the most effective system for your needs. Get in touch today.

Product specification sheet

Manufacturer

Ardex

ARDEX develops, manufactures and markets high-quality specialist construction materials including those for the floor levelling and repair industries.