Thioplast G21F

Back to search


Nouryon is the largest producer of liquid polysulfide polymer Thioplast G worldwide. We produce a number of different Thioplast G types with different molecular weight and degree of branching. Due to the excellent property of the cured Thioplast G such as elasticity and pronounced chemical resistance it is mainly used as base polymer to produce sealants for many industries. Physical properties such as tensile strength and adhesion can be adjusted by using various fillers, plasticizers and additives.

  • Product name

    Thioplast G21F
  • Brand

  • Chemical family

  • CAS number

  • Physical form

  • Regional availability

  • Chemical name

    Liquid polysulphide polymer with thiol end groups (MW > 1800)
  • Applications

    Thioplast G21F 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 G21F 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

Polysulfide polymers

Detailed description

Polysulphide, Mercapto-functionalized


  • Sealant


  • Insulating glass sealants