Installation Guide To Successful Cementitious Waterproofing!

Substrate Preparation

New concrete or cementitious substrates should be at least 28 days old.

Surface should be clean and free from any laitance, wax, grease, dirt and oil or any materials could affect the bond. Suitable Mechanical method such water jet or sand blasting or any equivalent method should be used to remove any existing old coatings.

All cracks and spalled concrete should be repaired before starting the application as recommended by our technical department (Concrete Repair solutions from Uniguard)

Do the proper coving for the sharp corners/edges into concave shape with cement mortar such as Unimix UW in weak areas (wall and floor junctions) to create a seamless surface.

Presoak the concrete surface with water prior to product application until a surface saturated dry condition is reached.

Mixing

Use slow speed mixer fitted with mixing paddle to mix the powder and the resin polymer.

Pour the resin in suitable clean bucket and start adding the powder to the polymer gradually while continuous mixing is maintained using mixer to avoid lump formation.

Time of mixing should be between 3 - 5 minutes or until lump-free slurry is obtained.

Application

Apply the mixed material using a brush, roll, trowel. The mixed material should be brushed/rolled well into the substrate in one direction.

Apply the first coat into the concrete surface according to recoomondation in the technical data sheet of each product:

2K Slurry & 2K Plus: brush /roller.

2K Flexi: Trowel

A minimum of 2 hours, depending on the ambient temperature, should be given for the first coat to cure before applying the second coat.

For brush or roller application, the second coat should be applied in a perpendicular direction to the previous layer to ensure good bond and coverage.

Allow 7 days depending on ventilation and ambient temperature after applying the second coat for full curing before water immersion.

Uniguard Range of Cementitious Waterproofing

2K Slurry: Two-component flexible cementitious waterproofing slurry, easy to mix & applied with a roller. Withstand positive water pressure up to 7 bar with superior adhesion to all substrates

2K Flexi: Flexible, two-component crack-bridging cementitious waterproofing for positive water pressure up to 7 bar & negative water pressure up to 5 bar. ideal for treating rising dampness.

2K Plus: Two-component highly flexible cementitious waterproofing slurry with crack bridging ability. can withstand high positive water pressure up to 7 bar.