Zecto Waterproof
Zecto Waterproof is a high-performance, two-component cementitious waterproofing membrane engineered to provide a robust, seamless barrier against water ingress. Designed for both new construction and remedial applications, it bonds tenaciously to concrete, masonry, and screed substrates to deliver lasting protection in wet areas.
Key Features
Discover what makes Zecto WP the right choice for your project
Seamless, crack-bridging waterproof membrane
Excellent adhesion to concrete, brick, and screed
Flexible — accommodates minor substrate movement
Resistant to carbonation, chlorides, and mild chemicals
Can be applied under tiles or left exposed in non-traffic areas
Non-toxic and safe for potable water tanks
Application Areas
Ideal use cases for Zecto WP
Bathrooms, Wet Rooms & Shower Areas
Basements, Foundations & Retaining Walls
Rooftops, Terraces & Balconies
Water Tanks, Reservoirs & Swimming Pools
Application Procedure
Follow these steps for optimal results
Prepare the substrate — clean, dampen, and ensure it is free of oil, dust, and loose material.
Mix the liquid component (Part B) into the powder (Part A) and stir to a uniform, lump-free slurry.
Apply the first coat with a brush or roller, working into corners and edges.
Allow the first coat to partially cure (touch-dry), then apply the second coat in the perpendicular direction.
For corners and pipe penetrations, embed Zecto waterproofing tape into the first wet coat.
Allow full cure before tiling or flooding; do not expose to rain for 24 hours post-application.
Points to Consider
Important notes for best results
Minimum two coats required for effective waterproofing.
Do not apply to surfaces with active water leaks — stop leaks before application.
Protect from rain for at least 24 hours after each coat.
Do not use as a wearing surface under heavy foot traffic without tile coverage.
Storage & Shelf Life
Shelf Life
12 months from date of manufacture (unopened)
Storage Conditions
Store in a cool, dry place away from frost and direct sunlight. Keep containers sealed.
Frequently Asked Questions
Common questions about Zecto WP
How many coats of Zecto Waterproof are needed?
How many coats of Zecto Waterproof are needed?
A minimum of two coats is required. For high-water-pressure areas (basements, water tanks), three coats are recommended.
Can tiles be fixed directly over Zecto Waterproof?
Can tiles be fixed directly over Zecto Waterproof?
Yes. Once fully cured, tiles can be fixed directly over the membrane using a suitable Zecto tile adhesive.
Is Zecto Waterproof safe for drinking water tanks?
Is Zecto Waterproof safe for drinking water tanks?
Yes. Zecto Waterproof is non-toxic once cured and is suitable for use in potable water storage tanks.
How long does it take to cure?
How long does it take to cure?
Each coat is touch-dry in 2–4 hours. Full cure for tiling is achieved in 24 hours. Allow 7 days before flooding or continuous water exposure.
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