Visit the Sika for more information

Better logoSika is a speciality chemicals company with a leading position in the development and production of systems and products for concrete, waterproofing, roofing, flooring, refurbishment, sealing & bonding and industry.

Sika provides a full range of waterproofing solutions for different requirements in new basement construction and refurbishment. With more than 100 years of experience in Structural Waterproofing, Sika is committed to providing proven and economic watertight solutions for even the most challenging requirements.

Innovative Sika waterproofing solutions that include both rigid and flexible waterproofing systems, create Added Value for our customers every day and support our customers everywhere – right from the initial project design and detailing, through to successful installation and completion on site.

SikaProof® – Fully-Bonded Membrane System

Sikaproof 2A unique pre or post-applied system that provides a fully-bonded and crack bridging membrane. SikaProof® is made up of an embossed and 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.

Sikalastic® – 1K

SikalasticA one component cementitious mortar fibre reinforced for flexible waterproofing. Sikalastic®-1K is a one component, flexible, fibre-reinforced mortar, based on cement modified with special alkali-resistant polymers. It also contains fine fillers, selected graded aggregates, plus special waterproofing additives to produce a flexible mortar that is ideal for waterproofing surfaces subject to flexural strain. Sikalastic®-1K is suitable for application by brush or trowel.

The Sika®-1

The SikaA waterproofing render system. The Sika®-1 Pre-Bagged Waterproofing System fully protects above and below ground structures from water ingress, eliminating the need for the maintenance of any internal drainage or pumping system associated with some other solutions.

Suitable for virtually any application, the system provides an effective water-tight seal for structures that must keep water out. Can be used to achieve Grades 1-3 under BS 8102-2009 and suitable for a high water table according to BS 8102-2009.

Sika® Bituseal S -115

Sika bituasealA waterproofing render system. A post-applied self-adhesive waterproofing sheet membrane based on modified bitumen, reinforced with polyester non-woven fabric. It has a silicone treated release liner on the upper and lower surfaces to aid installation. It is a tough, durable, self-adhesive sheet with an overall thickness of 1.5mm.

Sika® BituSeal S-115 is available in 1.0m widths and is designed for use as an under-layer in fully self-adhesive multi-ply built-up systems. It has BBA certification and CE marking. It is used for waterproofing and damp-proofing of foundations. Particularly exterior walls of basements to protect against percolating water and damp soil retaining walls (according to EN 13969).


Lee Richardson
Senior Project Engineer - Laing O'Rourke