VT-629 Fire Rated Hybrid Sealant

A single-component, moisture-curing sealant based on advanced MS Polymer technology that provides movement capability in fire rated joint applications. It is compliant with fire rating specification of BS EN 1366-4:2006. It can be painted over with common industrial paints; sealant bead will not shrink after cured; and the isocyanate-free formulation makes it possible to work on damp surfaces and will not have air bubbling issue. Even without primer, adhesion on various substrates is excellent. It is a green sealant formulated to meet the low VOC regulation.

  • 4 hours fire rating
  • ASTM C920 compliant
  • ±25 % movement capability
  • Good UV resistance
  • Low static charge – Less dirt streaking
  • Silicone-free – Paintable
  • Isocyanate-free – No air bubbling
  • Solvent-free – No shrinkage
  • Reactive plasticizer – Non-staining
  • Primerless bonding to most surfaces

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