Butyl (BU 2000)
For well qualified glass, polyisobutylen based, it is black or gray glass putty, only one component which prevents vapor permeability. Minimized vapor and gas permeability, Superior resistance to aging and high quality adhesive are it's most major properties. There is no smell and does not contain solvents.
Inside of the carton cylinder is covered by silicone folio and served as 1 kg, 2.5 kg, 7 kg, 7.4 kg.