The butyl rubber as the main part, adding a certain proportion polyisobutene, black and white carbon black, compound additive, vulcanizing agent, plasticizer, softener and other fillers makes GB flexible filler. Its main material is butyl rubber, and the finished production is similar to putty, so it is also named butyl rubber sealing putty or putty sealant.
GB flexible filler, which is designed specially for concrete panel, rockfill dam peripheral joint and expansion joint, is the new type of waterproof[...]