Product Data Sheet
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Sika® Brushcoat-WP

Sika® Brushcoat-WP

Cementitious waterproofing slurry

Sika® Brushcoat-WP is a cementitious two part polymer-modified product which is mixed to a slurry consistency and applied to concrete and mortar to provide waterproofing.

  • Pre-batched components
  • Mixes and applies easily
  • Slurry or trowellable consistency
  • Good adhesion to sound substrates
  • Waterproofs and damp proofs masonry surfaces
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Product Data Sheet
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Usage

Sika® Brushcoat-WP will bridge pre-existing static hair-line cracks and is effective for waterproofing the following areas:
  • Terraces and balconies
  • RC gutters
  • Bathroom floors and walls
  • Planter boxes
 

Advantages

  • Pre-batched components
  • Mixes and applies easily
  • Slurry or trowellable consistency
  • Good adhesion to sound substrates
  • Waterproofs and damp proofs masonry surfaces

Packaging

Part A

4.5 kg container

Part B

18.0 kg bags

Parts A + B

22.5 kg set

Colour

Part A

White liquid

Part B

Grey powder

Parts A + B

Grey slurry (mixed)

Product Details

Product Information

Shelf Life

6 months from the date of production

Storage Conditions

Store properly in original, unopened and undamaged sealed packaging in dry conditions at temperatures between +5 °C and +30 °C. Protect from direct sunlight, rain and water.

Density

~2.0 kg/l (Parts A + B mixed)
Technical Information

Tensile Adhesion Strength

0.5 N/mm² (on concrete)

Application

Application Information

Pot Life

30 minutes at 30 °C (maximum open time). Potlife is shorter at higher temperatures.

Waiting Time / Overcoating

For overcoating with cementitious materials, allow the second coat to harden for at least 3 days prior to overcoating.
For overcoating with non-cementitious materials, please refer to our Technical Service Department.
Consumption

Consumption

Waterproofing of bathrooms, terraces and balconies

1.0 kg/m² per coat, minimum 2 coats

Waterproofing coating up to 1 m waterhead

1.5 kg/m² per coat, minimum 2 coats

Waterproofing coating more than 1 m waterhead

2.0 kg/m² per coat, minimum 2 coats

Note: Sika® Brushcoat-WP must be applied in a minimum of 2 coats. 3 coats may be required in areas of extremely high infiltration.
Application steps

MIXING

Under normal circumstances, when the full quantities of both parts are mixed together, a slurry consistency will result. The consistency of the mix can be altered by reducing the amount of Part A (liquid) to be used. For a trowellable consistency, use only 90% of Part A (4 kg). Mix in a clean container by slowly adding Part B (powder) to Part A and stirring with a low speed mixer (≤ 500 rpm). Use within 30 minutes.

APPLICATION

Whilst the substrate is still damp from saturation, apply the first coat. Leave to harden for approximately 4–8 hours at temperatures above 20 °C before applying the second coat. For slurry consistency, apply with a hard plastic bristled brush or broom.

For floor applications, to avoid risk of damage to the first coat, it is recommended that the second coat be applied after 24 hours. If the second coat is applied 12 hours or later, the first coat shall be slightly prewetted, preferably by using a fine spray. After the second coat has been applied, better finishing can be achieved by rubbing down with a soft, dry sponge.

Sika® Brushcoat-WP can also be applied by trowel or by spraying. For more details, please refer to our Technical Service Department.

CURING TREATMENT

Special curing methods are generally not required but some precautions should be taken for applications done directly under sunlight and windy conditions. It should be protected from direct rain for at least 4 hours.

CLEANING OF TOOLS

Clean all tools and application equipment with water immediately after use. Hardened and/or cured material can only be mechanically removed.

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