Betec Fastflex


Fastflex is  fast curing, two-pack, polymer modified tough cementicious waterproofing membrane. Its is reinforced with specially graded synthetic fibre. When blended, Flasflex forms a flexible matirx of rubber polymer and hydrate structures, providing a tough breathable membrane that is impermeable to liquid water.

Pallet Amount 24kits

  • Wet areas – Showers floors and walls, bathrooms, toilets, laundries, kitchens, equipment room floors.
  • External Areas – balconies, sill and window flashings, podium decks, basement walls, water features, water storage or detention tanks and lanscaped areas.
  • Anti- Efflorescence sealer. Bonds securely to concrete, masonry, cement render, FC and CFC sheet, brick, block, ALC, etc.


Flexible Polymeric Membrane.

  • Complies with Green Star requirements -has zero VOC level.
  • No toxic or hazardous ingredients.
  • Water clean-up, low-odour.
  • Environmentally friendly.
  • Simple application and fast cure.
  • Resists continuous water immersion.
  • Self-priming and non-staining.
  • Total adhesion – no water tracking.
  • Hardwearing – long life.
  • Guaranteed with Grace Chem-Fix tile adhessives.
  • Compatible with cement base tile adhesives.
  • Crack bridging ability.
  • Multi-purpose high build.

Internal Wet Areas:

  • Floors – 1.5 -2.0kg(litre)/m2 Walls – 2-3m2/kg.


  • Water features, balconies, window or sill flashings and tanking – apply at 1.5 -2.0kg(litres)m2.