DOWSIL™ 983 Structural Glazing Sealant Catalyst 5 Gallon Pail


Designed for specialized use where dual structural and weatherseal applications are desired for factory glazing and curtainwall production. Once cured, this structural sealant forms a durable, flexible, watertight bond that can be warranted for 20 years and used in ±25% movement weatherseal applications. It has excellent unprimed adhesion to glass, alodine, and anodized aluminum, although DOWSIL™ Primer-C OS is recommended for fast and consistent adhesion, especially to high-performance substrates approved for architectural structural glazing applications.

Technical Data Sheet

Safety Data Sheet

  • Structural and sealing applications for factory glazing and glass curtain wall production
  • Approved for structural and weatherseal applications
  • Meets ASTM C719 Class 25 (G, A, O)
  • Meets ASTM C1184 Structural Glazing Specification
  • Low VOC formula (less than 18 g/L when mixed properly)
  • 20 years structural glazing

Additional information

Weight 60 lbs
Dimensions 1 × 1 × 1 in