Waterproofing Systems

Builda Flex 700

Flexible acrylic cement modified waterproof coating

Two-component polymer modified cementitious waterproof coating for internal and external applications.

  • Internal and external waterproofing
  • Non-toxic and suitable for drinking water
  • UV resistant and breathable
  • Cost effective brush or spray application

Substrate Preparation

Surfaces should be clean, sound and free from contamination. Remove loose materials and repair honeycombing or deteriorated concrete with suitable low permeability repair mortar

Priming

No primer required, but substrates should be pre-soaked with clean water prior to application

Mixing

Add 3 kg liquid into a clean container, slowly add 17 kg powder while mixing at 300-400 rpm and continue for 3 minutes until uniform

Application

Apply by roller, brush or spray. Brush the material well into the surface and avoid spreading too thin

  • Waterproofing behind stone veneer and exterior cladding
  • Protection of concrete and masonry against carbon dioxide, chloride ions, water and de-icing salts
  • Waterproofing wet areas such as bathrooms and kitchens
  • Waterproofing water retaining structures and reservoirs

Property
Value
Mixed density
1.82 ± 0.1 g/ml
VOC
< 5 g/L powder / < 40 g/L liquid
Working time
60 minutes
Tensile strength
> 2.0 MPa @ 7 days / > 2.6 MPa @ 28 days
Bond strength
≥ 1.6 MPa @ 28 days
Flexural strength
> 4.5 MPa @ 7 days / > 5 MPa @ 28 days
Resistance to water pressure
> 30 m (3 bars) positive at 2 mm thickness
Mixing ratio
3 kg polymer liquid with 17 kg powder
Minimum application temperature
5°C