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Coverage Calculator.

150m2
specs

Technical Specifications.

Waterproof Time:3 hours @ 25°C, 50% RH (before membrane application)
Coverage:4–6 m² per litre depending on surface porosity and application method.
Usable Period After Opening:Use within the same day after opening (moisture-reactive system)
Touch Dry Time Minimum:Touch Dry: 30 mins @ 20°C, 15 mins @ 30°C. Full Cure: 6 hours @ 25°C, 50% RH
Vapor Pressure @ 25°C:Not a vapor barrier (moisture may cause blistering if applied over damp substrates)
Application Temperature:10°C – 30°C
Shelf Life:6 Months
Membrane Classification:Polyurethane Primer (Solvent-based)
Colour:Translucent matte, viscous liquid
Tack Free Time:30 minutes @ 20°C
Recoat Time:3–6 hours depending on ambient temperature and humidity
Elongation at Break:Good solvent resistance; not suitable for continuous UV exposure
Recommended Thickness:Applied as a thin uniform film (typically 100–150 microns)
Full Cure:6 hours @ 25°C, 50% RH
Chemical Base:Moisture-curing polyurethane resin
Cure Mechanism:Reacts with atmospheric moisture
Tear Propagation Resistance:High adhesion, non-elastomeric
Service Temperature:10°C to 60°C (once cured)
Solid Contents:<70% (w/w)
Bond Strength:High – compatible with solvent-based polyurethane membranes and sealants
Density:0.80–1.00 g/mL @ 25°C

Our Waterproofing Paint

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Waterproofing Paint

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Waterproofing Paint

Frequently Asked Questions

Coverage depends on the surface and product used. As a general guide, 15L covers approximately 11.25 m² over two coats at 1.2mm DFT. Use our Coverage Calculator above for an accurate estimate.
We recommend a minimum of two coats for effective waterproofing. The first coat acts as a primer/base, and the second coat ensures full coverage and a continuous membrane.
Typical recoat time is 2–4 hours depending on temperature and humidity. Always check the product datasheet for specific drying times.
No. Surfaces must be clean, dry, and free from dust, oil, and loose material before application. Applying to wet surfaces will compromise adhesion and performance.
Yes, products like ACTFLEX 400 are suitable for below-ground (negative side) waterproofing. Always check the product technical datasheet for approved applications.
Absolutely! Our team of waterproofing specialists is available to help you choose the right product for your project. Contact us via the form on our website.

Protect Every Surface

Customer Reviews

★★★★★

"I had a leaking shower and thought I'd have to rip out all the tiles and re-waterproof the whole thing. After using ACTFLEX 400 as instructed, I can finally shower without worrying about water leaking through. Saved me a massive headache and a lot of work. Thanks to this amazing team for their advice on preparation — applying 3 thin coats and the curing times."

— Verified Customer

★★★★★

"Had an active water leak that ACTFLEX HYDROPLUG stopped almost immediately thanks to its rapid set. For ongoing negative-pressure waterproofing on retaining walls and a water tank, I applied ACTFLEX 988 CWP with AT-MESH 150mm at the joints for extra reinforcement, then sealed with ACTFLEX MS PRO. Months on, no leaks, no cracking, no issues. Great system for anyone dealing with below-ground water pressure."

— Verified Customer

★★★★★

"I used ACTFLEX HYDROPLUG to stop an active water leak — it set fast and sealed the leak effectively. For negative-side waterproofing on retaining walls and water tanks, I went with ACTFLEX 988 CWP, paired with AT-MESH 150mm for reinforcement at the joints and ACTFLEX MS PRO as the sealant. The whole system has held up without a single issue. Solid results across the board — would use this combination again on similar jobs."

— Verified Customer

★★★★★

"I used ACTFLEX HYDROPLUG to seal an active water leak, and it worked exactly as expected. It set quickly and stopped the water effectively. For negative-side waterproofing on retaining walls and water tanks, I used ACTFLEX 988 CWP with AT-MESH 150mm for joint reinforcement and ACTFLEX MS PRO as the sealant. The complete system has performed reliably with no issues so far. Very happy with the results and would definitely use this combination again on similar projects."

— Verified Customer

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