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).