Sika’s unique pre or post-applied system provides a fully-bonded and crack bridging membrane. SikaProof® consists of an embossed, highly flexible polyolefin membrane, with a unique grid pattern of sealant and a specially designed non-woven fleece.

This system produces a durable mechanical bond to either fresh concrete, using pre-applied SikaProof®-A, or hardened concrete, using post-applied SikaProof®-P. In addition, the sealant prevents any lateral water underflow and migration between the SikaProof® membrane system and the structural concrete.

SikaProof® can generally be used to waterproof all types of reinforced concrete basements and other below ground structures that are exposed to aggressive ground conditions and stress or those that must provide a completely dry internal environment, whilst also being durable.

Typical projects are residential and industrial buildings such as housing, commercial, leisure facilities, manufacturing plants and warehouses. Engineered structures, such as retaining walls, tunnel galleries, potable water tanks, waste water storage treatment structures and tanks, can also be waterproofed externally with the SikaProof® system.

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SikaProof® complies with BS 8102:2009 Type A construction. The benefits of the SikaProof® system are:

  • High durability
  • No lateral water underflow
  • High flexibility and crack bridging ability
  • Cost effective solution
  • Approved detailings
  • Effective radon and methane barrier
  • Quality backed by Sika warranty and a BBA certificate
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SikaProof®-A

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SikaProof®-P

  • SikaProof®-A
    Pre- and cold applied sheet waterproofing membrane system for application below base slabs, on single and double-faced formwork cast walls.
    Find out more
  • SikaProof®-P
    Post-applied sheet waterproofing membrane system, specially designed for roof slabs and double-faced formwork cast walls.
    Find out more
  • Complementary products for joint sealing and waterproofing
  • Sika® Waterbar
    Internal or external applied waterstops based on PVC, TPO or galvanised steel for construction and movement joints.
  • Sikadur® – Combiflex® SG System
    Over-banding sealing tape system for post-sealing and waterproofing of construction and movement joints, around penetrations and for connections.
    Find out more
  • SikaSwell® Sealants and Profiles
    Range of hydrophilic profiles and gun applied sealants, designed for sealing and waterproofing of construction joints and penetrations.(e.g. pipe entries).
    Find out more
  • SikaFuko® Injection hoses
    Injection hoses for construction joints and other details, with or without swelling strips, which can be used for sealing by injection and re-injection in the event of future movement etc.
    Find out more