Butyl Tape for Primary Seal of Insulated Glass



How Is Butyl Coated on Shaped Spacer Bar Or Without Butyl Extruding Machine?

Custom Made Frames for Almost Any Sizes with A Great Varieties of Profile Sections

Dual seal insulated glass is always composed of primary seal and secondary seal. Primary seal is butyl. It is usually packed in 7 kg drum. It is extruded and is applied on two sides of aluminium spacer bars by an expansive delicate butyl extruding machine. Now, there is an alternative, butyl tape. BST series butyl tape is a thin layer of butyl sealant which is already pre-extruded and wind with protective thin film in disc.