1. This product is a band-shaped sealant with butyl rubber as base material. It does not contain any volatile substance and is nontoxic and odorless. It does not produce pollution to the environment. It has good resistance to ageing and is suitable for use at door waterproof film,decorative parts,lamps,etc. 2. Usage: a: Remove grease and dirt from the surface where to stick the sealant band. b: Stick this product together with the release paper to the bonded sealing element and press it firmly with hand. c: Remove the release paper and spread over another bonded sealing element and press it firmly with hand.