Thioplast G21

Product Line Thioplast - polysulfides

Thioplast® G21 is a liquid Polysulfide Pre-polymer, end-capped by SH-functional end groups.

  • Brand

  • Chemical family

  • CAS number

  • Physical form

  • Regional availability

  • Chemical name

    Liquid polysulfide polymer with thiol end groups (MW > 1800 g/mol)
  • Applications

    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).

Market Segments

Building and construction

Detailed description

polysulfide, Mercapto-functionalized


  • Sealant


  • Insulating glass sealants
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