TOA PU Waterproof

Self-coloring paint

Color board

Technical Data

Product safety information

TOA PU Waterproof is an elastic waterproofing membrane, single component of water based polyurethane. 100% waterproofing, highly flexible, elongation more than 600%, good UV resistance, harsh weather tolerance and abrasion resistance from traffic. Used to prevent leakage, solve cracks on concrete caused by rapid change of temperature.

TOA PU Waterproof has the following outstanding features and benefits:

One component pure polyurethane.
100% proof seamless waterproof layer.
Highly elastic, elongation more than 600%.
UV resistance, harsh weather tolerance.
Can be used for internal & external.

Packaging: 4 kgs/Can, 20 kgs/Pail.

View DetailCompact

Intended use:

TOA PU Waterproof used professionally for waterproofing on cement wall surfaces, concrete, mortar, brick, indoor and outdoor and used for new construction and renovation works such as terraces, balconies and wet area; asbestos roof tile; concrete roof deck.

Color: Grey
Density at 250C, kg/L: 1.30 – 1.34
Solid Content by volume, %: 60.0 – 63.0
pH at 250C: 8.00 – 8.50
Viscosity at 250C, cPs : 15,000-20,000
Maximum tensile Strength after 7 days, MPa: > 4.5
Elongation at break after 7 days, %: > 600
Shore A hardness after 7 days: > 75
Tear strength after 7 days, kN/m: > 35
Tensile adhesion strength after 7 days, MPa: > 0.8 (*); > 1.5 (**)
Crack bridging ability under standard condition, mm: > 4.0
Chemical Resistance: Not change
Initial Surface Absorption, mL/ (m2/s): 0
(*): Apply with TOA PU Waterproofing (0.3 kg/m2) diluted with water (0.1 kg/m2) at a ratio of 3 - 1.
(**): Apply with Epoguard varnish at a ratio of 0.1 – 0.2 kg/m2.

Application tools: Brush, roller, or high-pressure spray gun.
After use: Clean the tools with clean water immediately after application.

Surface preparation:

The surface must be cleaned from dust, cement laitance and oil grease.
In case of mold and algae, brush and clean with TOA 113 Micro kill then leave it dry before coating with TOA PU Waterproof.
Deformed paint or coating must be thoroughly cleaned before application.
Fill all cracks wide with TOA Polyurethane Sealant then leave it dry before coating with TOA PU Waterproof.
Repair concrete crumbling or big cracks on surfaces with TOA Latex Agent prior to coating.
Make sure concrete surface moisture do not exceed 16% for TOA PU Waterproofing diluted with fresh water at a ratio of 3:1 and do not exceed 4% for Epoguard varnish.

Application:

Stir well with low speed mixer before use, especially tinted.
For the roof or floor slab: apply TOA PU Waterproofing as a primer with a rate 0.3 kg/m2 (mixing with fresh water at a ratio of 3:1, the amount of water to dillute is 0.1 kg/m2), leave to dry 1 – 2 hours. Or, we can apply Epoguard Varnish as a primer layer at a rate of 0.1 – 0.2 kg/m2 to enhance better tensile adhesive strength, leave it dry for 12 - 24 hours approximately (drying time are generally related to air circulation, temperature, film thickness, etc).
Apply 1st coat of TOA PU Waterproof (do not add water) at a rate of 0.6 – 0.7 kg/m2 (dry film thickness of 0.35 mm), leave to dry 2 – 4 hours in each coat.
Reinforce with TOA Fiber Mesh to improve adhesion and prevent cracks after applying 1st coat immediately and press against the surface.
Apply 2nd coat (do not add water) at a rate of 0.6 – 0.7 kg/ m2, leave to dry 2 - 4 hours in each coat.
Apply 3rd coat (do not add water) at a rate of 0.5 – 0.6 kg/ m2, leave to fully cure after 7 days.

Recommended:

TOA PU Waterproof should not be applied to new concrete less than 28 days old and other cementitious surfaces less than 7 days old.
For areas expected to be cracked, the corner between floor and wall should be applied.
Do not use TOA PU Waterproof while raining.
TOA PU Waterproof gets fully resistance properties after 7 days.
TOA PU Waterproof uses for waterproofing for all horizontal (roof deck) or vertical masonry surfaces not suitable for long term water ponding (water tank).
Wash all tools immediately after use with water.
Contact TOA for further detailed method of statement for specific Preparation & application.

TOA PU Waterproof

Intended use:

Technical Data

Construction methods

Construction Guide

Recommended paint system

Other products