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Sika Construction Chemicals • Firestop Systems

SikaSil®-403 Fire

Fire-rated, one-component, neutral-curing silicone sealant designed for fire-resistant glazing joints, partition walls, and expansion joints.

Key Performance Features

  • Up to 4 hours fire resistance according to EN 1366-4
  • Excellent weathering and UV resistance
  • High movement capability of ±25%
  • Low odor and non-corrosive neutral cure

Recommended Applications

  • Fire-rated sealing of expansion and connection joints
  • Glazing systems, glass partition walls, and curtain wall facades
  • Metal duct connections and piping joints
Packaging 310ml cartridges or 600ml sausages
Color / Finish White, Grey, Black