EVO-STIK EVOSS Strong Stuff Weatherproof Adhesive is a High performance, single component, moisture curing, Modified Silane (MS) Polymer based adhesive. Will bond most surfaces even if both are impervious. Will bond damp surfaces and may even be used underwater. It has a low odour and cures to form an elastic rubber, with almost no shrinkage and low hazard. Bonds to most surfaces. Size - C20 cartridge