TOA 258-P Cement Membrane

Self-coloring paint

Color board

Technical Data

Product safety information

TOA 258-P Cement Membrane is a two pack cement waterproofing cement based. Part A is modified polymer liquid and part B is a pre-mixed powder compounds of cement, selected fine aggregate and special additives. These two components, when mixed together, form a liquid mortar solution that is convenient for application on mortar and concrete surfaces to form a high elastic coating with waterproof and protective properties.

TOA 258-P Cement Membrane has the following outstanding features and benefits:

1. Packed in convenient mixing ratio for easy mixing and application.

2. Improved polymer composition increases good adhesion on surfaces.

3. Create a seamless waterproof membrane, no joints.

4. Capable of covering cracks ≤ 0.50mm.

5. The product is non-toxic and suitable for application on surfaces in contact with domestic water – compliant with the national technical regulation QCVN 01-1:2018/ BYT on the quality of clean water used for domestic purposes.

View DetailCompact

Intended use:

TOA 258-P Cement Membrane used professionally for waterproofing on cement wall surfaces, concrete, mortar, brick, indoor and outdoor and used for new construction and renovation works such as:
1. Waterproofing the inside of residential water tanks, fire water tanks, swimming pools, planting tanks, water holes, manholes, etc. before plastering or finishing tiles.
2. Waterproofing floors, walls of toilets, kitchens, laundry areas, balconies, loggias or wet areas, etc. before finishing tiles and stones.
3. Waterproofing for basement walls, retaining walls, balcony terraces, etc. with protective plaster.

Adhesion strength under normal conditions after 28 days (MPa): ≥ 0.5
Adhesion strength after immerse in water (MPa): ≥ 0.5
Adhesion strength after heat ageing (MPa): ≥ 0.5
Crack bridging ability under standard condition (mm): ≥ 0.75
Water penetration under a water pressure of 1.5 bar for 7 days: Non-penetration.

Mixing ratio: Part A: Part B = 1: 2.6 (by weight)

Surface Preparation: The mortar and concrete surfaces must be cleaned, ensuring no dust dirt, oil, grease, old coatings, curing agents or other impurities on the substrate surface.

Absorbent surfaces must be completely saturated by fresh water before application.

Mixing: Mix with a mixer at low speed 300-500 rpm

Put ¾ part A in a clean pail. Keep stirring machine run slowly speed at 300-500 rpm, add part B slowly and mix at least 5 minutes to get a lump-free homogenous mix. Add part A remainder and mix until homogenous.

Application: Using trowel, brush, roller, sprayer, apply a layer of mixed mortar onto the treated surface, which has been cleaned as well as saturated with clean water.

Allow to dry for minimum 8 hours before applying the next coat.

When applying on a horizontal surface, it is recommended to apply next coating after 24 hours to ensure that the application process does not affect the former layer.

Allow to dry completely for at least 7 days before putting into use.

TOA 258-P Cement Membrane

Intended use:

Technical Data

Construction methods

Construction Guide

Recommended paint system

Other products