FPO sheet membrane for pre-applied fully bonded below ground waterproofing
SikaProof® A+ 12 is a polyolefin (FPO) based sheet membrane for below ground waterproofing of reinforced concrete structures. It is loose laid onto prepared substrates or formwork before fixing reinforcement and casting concrete. A special hybrid bonding layer on the membrane forms a permanent bond with the fresh concrete. Overlap joints are sealed using cold-applied tapes or by thermal jointing. Thickness 1,2 mm. Suitable for use in hot and tropical climatic conditions.
Usage
Damp-proofing, waterproofing and concrete protection for basements and other below ground concrete structures against ground water ingress. Suitable for use on:- Reinforced concrete base slabs
- Reinforced concrete walls with single and double-faced formwork
- Extension and reconstruction works
- Prefabricated structures
Advantages
- Pre-applied: Fixed before placing reinforcement and casting concrete
- Dual bond: Mechanical and adhesive bond with fresh concrete
- Fully and permanently bonded to the reinforced concrete structure
- No lateral water migration between the concrete structure and the membrane system
- High watertightness tested according to various standards
- Easy to install with fully adhered joints
- Cold-applied or thermally jointed
- Temporarily resistant to weathering and UV exposure during construction
- Resistant to aging
- High flexibility and crack-bridging capabilities
- Resistant to aggressive conditions in natural ground water and soil
- Can be combined with other approved Sika® Waterproofing / Joint Sealing Systems