Corden EPS GRM Self-Adhesive Membrane is a bituminous, gas proof and waterproof sheet. Composed of self-adhesive SBS polymer modified bitumen, with an upper surface finish of aluminium foil and a lower surface finish or siliconized polypropylene release film.

Corden EPS GRM is used for the waterproofing of underground structures where harmful ground gasses are anticipated.


Corden EPS GRM should be installed in accordance with the product installation guidelines, and in accordance with BS 8485:2015. Corden EPS GRM should be applied to a clean and dry surface.