Sika provides solutions for even the most challenging requirements with its unique waterproofing product portfolio, contributing to efficient, long-lasting infrastructure, be it for drinking water facilities (fulfilling the most stringent drinking water approvals), tunnels, bridges, basements or balconies.

Post Applied Membrane

Sikaproof P-1201 is a post-applied sheet membrane system consisting of highly flexible polyolefin membrane (SikaProof P-1200) a two component polyurethane adhesive (SikaProof Adhesive-11 H(horizontal) or SikaProof Adhesive-11V (vertical). This exclusive system build-up creates a full and durable bond when installed onto existing hardened concrete structures, such as horizontal edges, decks and on walls with double-faced formwork. In addition, the adhesive prevents any lateral water migration between the SikaProof P - 1201 membrane system and the existing concrete.


SikaProof® P-1201 system consists of flexible FPO membrane SikaProof P-1200  based on Sikaplan® technology available in thickness 1.2 mm. The SikaProof P-1200 membrane is installed onto the freshly applied SikaProof® Adhesive (H or V) onto the prepared hardened structural concrete substrate.

SikaProof 1201 System
System Components
  • SikaProof® Adhesive 11-H or 11-V, is a two component Polyurethane adhesive that is trowelled on to existing concrete substrate to bond the SikaProof®P-1201. 
  • SikaProof® Ex-Tape-150 is used for sealing joints of membrane overlaps or for detailing. 


Using for sealing joints of membrane overlaps detailing:

  • SikaProof® ExTape-150
  • SikaProof® Adhesive-11H  or 11V
Pre-Applied Fully Bonded Membrane

SikaProof, a fully-bonded TPO membrane system offers customers high waterproofing safety and installation efficiency, typically used for basements.
Typical projects are:

  • Residential and industrial buildings such as housing, commercial and leisure facilities
  • Engineered structures such as retaining walls, tunnel shafts, cut and cover tunnels


WT protection sheet/felt and thermal insulation boards

SikaProof® P-1201, post-applied membrane

Sikadur Combiflex® SG System

Sika® Hydrotite® joint waterproofing profiles

SikaFuko® VT injection hose

Sika® Greenstreak® Waterstop joint waterproofing

SikaProof® detailing solutions, e.g. for pile caps

SikaProof® A, pre-applied membrane