Product Data Sheet Show all documents
Sika®-1

Sika®-1

Liquid waterproofing admixture for mortar and concrete

Sika®-1 is a normal setting liquid waterproofing admixture for mortar and concrete.

Sika®-1 blocks the capillaries and pores in the applied cementitious system to provide an effective water barrier against the transmission of liquid water. The benefits of Sika®-1 include, but are not limited to the following:
  • Increased impermeability of mortar/concrete
  • Waterproof, but vapour permeable
  • Ready to use
  • Easily dispersed
  • Chloride-free
  • Non-toxic
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Product Data Sheet Show all documents

Usage

Sika®-1 is used for waterproofing of mortars and concrete, in particular for:
  • Renders, masonry mortars and screeds
  • Reinforced and unreinforced concrete
  • Brick, concrete and stone substrates
  • Indoor and outdoor applications, such as basements, swimming pools, tunnels, water tanks, manholes, culverts
  • Usage in tropical and hot climate conditions
 

Advantages

Sika®-1 blocks the capillaries and pores in the applied cementitious system to provide an effective water barrier against the transmission of liquid water. The benefits of Sika®-1 include, but are not limited to the following:
  • Increased impermeability of mortar/concrete
  • Waterproof, but vapour permeable
  • Ready to use
  • Easily dispersed
  • Chloride-free
  • Non-toxic

Packaging

  • 1,000 L IBC
  • 200 L drum
  • 5 and 20L pails

Colour

Yellow liquid

Product Details

Product Information

Shelf life

12 months shelf life from date of production if stored properly in undamaged, unopened, original sealed packaging.

Storage conditions

Storage at temperatures between 5 °C and 30 °C. Protect from direct sunlight, frost and contamination.

Density

1.05 ± 0.03

pH-Value

10 ± 1

Total chloride ion content

≤ 0.1 %

Application

Application Information

Ambient air temperature

Min. 5°C – Max. 30°C

Substrate temperature

Min. 5°C – Max. 30°C
Consumption

Recommended dosage

1.5 litres per 50kg of Portland Cement i.e. 3% by weight of cement. When using very wet sand, Sika®-1 must be used in higher amount.

Note: Trial mixes should always be conducted to establish the exact dosage rates and water requirements per mix.
Application steps

MIXING

Sika®-1 must be stirred slowly before use to ensure a homogeneous, lump free consistency.

Sika®-1 shall be diluted in the gauging water. The dilution must be stirred slowly prior addition into the mortar/concrete mixer. Sika®-1 can also be added neat to the mortar/concrete mix provided that the mixture is properly mixed to have homogeneous consistency.

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