Thioplast G21 is a liquid Polysulfide Pre-polymer, end-capped by SH-functional end groups.
Liquid polysulfide polymer with thiol end groups (MW > 1800 g/mol)
Thioplast G21 is used to formulate flexible, highly elastic sealants being used in Insulating Glass applications with best performance in high Nobel Gas retention and low moisture vapor permeability. Furthermore, Thioplast G21 is used in low viscos sealants with good UV-resistance being used in construction applications. Recommended use in combination with Managanese(IV)oxide curing agent (7.5-9.4 g MnO₂/100g).