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TechFin® 2K

Two Component Elastomeric Cementitious Waterproofing Coating System

TechFin® 2K is a two component elastomeric acrylic emulsion modified cementitious coating system incorporating a blend of cementitious powders combined with proprietary activating chemicals and high grade quality aggregate fillers with selected bonding agents.TechFin® 2K provides positive and negative water repellency against dampness and ground water as well as hydrostatic pressure. It can simply be applied by stiff brush, roller or trowel to obtain the desired thickness. The slurry coating forms a moisture barrier, significantly reducing the water absorption into dry surfaces, allowing moisture to migrate out of protected areas and avoiding moisture build up and dampness.


  • Allows water vapour to escape from the structure.
  • Suitable for water retaining structures.
  • High resistance to the effect of long-term weathering.
  • Durable in all climate conditions.
  • Nontoxic – Ideal for potable water tanks.
  • Flexible with thermal expansion similar to concrete.
  • Excellent bond to concrete and masonry.
  • Good crack accommodation capacity.
  • Blocks passage of water – seals pores.


  • Concrete structures like sunken portion, toilets, balcony, basement, chajjahs, terrace & small podium slab
  • Pools and fountains
  • Reservoirs and channels


This depends on the required consistency & surface. The approximate coverage is (2-2.5) kg/m2 in 2 coats.

Technical properties:

Appearance  Grey powder with white liquid
Mix ratio (Powder to liquid)  3:1 by weight
Pot life @ 25°C  & @ 40°C 30 minutes & 2 hours respetively 
Setting Time  40-45 minutes
Inter coat application  time in Hrs  8-12 hours
Application Temp.  Not less than 10°C
Water penetration Din 1048  1.5 Bar no leakage
Static crack accommodation  1mm
Tensile strength  >20 kg/cm2
Elongation>42% (air)
>31% (under water)
Density  1850kg/m³
Toxicity  Non-toxic
Adhesion to concrete  Excellent
Note: All values are subject to 5-10 % tolerance.
Sterling Technotrade