SikaProof® A-12 HC

Fully bonded, pre-applied FPO sheet membrane waterproofing system for basements and other below ground structures in hot climate areas

SikaProof® A-12 HC is a fully bonded, composite sheet membrane waterproofing system for reinforced concrete structures designed for use in hot climate areas. It consists of an embossed polyolefin (FPO) based membrane laminated with a unique sealant and a non-woven fleece with a self-adhesive strip on the longitudinal side for the overlap. SikaProof® A-12 HC is cold-applied and pre-applied, as it is installed without heat or open-flames, and before the steel reinforcement is fixed and the concrete is poured. Suitable for use in hot and tropical climatic conditions.

  • Pre-applied, before the reinforcement is fixed and the concrete is poured
  • Fully and mechanically bonded to the reinforced concrete structure
  • No lateral water underflow between the concrete structure and the membrane system
  • High watertightness tested according to various standards
  • Easy to install with fully adhered joints (no welding required)
  • Cold-applied (no pre-heating or open flames)
  • Temporarily resistant to weathering and UV-light during construction
  • Specially designed for use in hot climate areas
  • Resistant to aging
  • High flexibility and crack-bridging abilities
  • Resistant to aggressive mediums in natural ground water and soil
  • Can be combined with other approved Sika Waterproofing / Joint Sealing Systems