Premix watertight is a specially designed concrete which includes a pore blocking agent and a powerful new generation superplasticiser to provide extremely low permeability. The product is backed by a British Board of Agrément certificate.

Premix watertight uses the proven Sika watertight system, which has been upgraded to further enhance placing, performance and durability. It also gives increased resistance to chemical attack and protection to the reinforcement.

The concrete is easy to place with minimal compaction, and does not require costly and unreliable membranes.

Premix watertight is ideal for:

  • Reservoir and tanks
  • Basements (all grades and uses)
  • Waste water plants
  • Car parks
  • Dams
  • Underground stations and subways
  • Secondary containment bunds
  • Utility vaults
  • Swimming pools
  • Marine structures
  • Sewers and pipelines
  • Tunnels

It is also available in combination with Premix duraflow as a self-placing, watertight mix.

In addition, a range of detailed joint solutions are available from our partner Sika Ltd and include the following:-

Sikaswell 2010 A profile which swells in contact with water to seal the joint

Sikaswell S A gun applied version of the above

Sika Injectoflex A hose system which is re-injectable for lifetime maintenance

Sikadur Combiflex A solution for expansion joints and other applications