Thioplast G21F

Product Line Thioplast - polysulfides

This grade´s unique combination of strength, elasticity, weatherability and gas tightness makes it the industry's first choice for insulating glass sealants. Formulators tailor properties like pot-life, tensile strength, adhesion and elongation at break by choosing from various compatible plasticizers, fillers and other additives. The viscosity, degree of branching and SH content can easily be adjusted by blending this grade with others to generate your tailored Thioplast® polysulfide.

  • Brand

  • Chemical family

  • CAS number

  • Physical form

  • Regional availability

  • Chemical name

    Liquid polysulfide 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

Building and construction

Detailed description

polysulfide, Mercapto-functionalized


  • Sealant


  • Insulating glass sealants
Read more

Get in touch!

For more information about Thioplast G21F, please contact our technical experts. We look forward to hearing from you.

We respect your privacy.

We use essential and non-essential cookies to provide, secure, analyze and improve our services. Click 'Agree' to accept or learn more about our Cookie Policy and edit your preferences. 

You can change settings at any time.