Evo-Stik Trade One Part Polysulphide is a high quality ready mixed polysulphide sealant which has good movement accommodation. It cures by reaction with atmospheric moisture forming a tough rubbery tack-free compound with excellent adhesion & colour retention. Evo-Stik Trade One Part Polysulphide has the added benefit over silicone sealants in that it has good resistance to oil & can also be over-painted.