LS42/43 Sibax Neutral Weatherseal Silicone



Weather resistant neutral silicone sealant with high movement capability. Formulated for glazing and weathersealing applications in curtainwall and building facades.


  • High movement capability, low-modulus sealant.
  • Excellent unprimed adhesion on wide variety of construction materials as concrete, stone, brick, wood, steel, glass etc…
  • Durable and resistant to weather conditions and temperature shifts.
  • Very fast cure, does not pick up dirt.
  • Does not crack.
  • Does not contain solvent, non-shrink.
  • Does not cause corrosion

Fields of Application

  • Expansion joints on curtainwall and building facades
  • Weather-resistant sealing, bonding and glazing applications.

Color Options

Black White Grey Translucent


  • 300ml x 24 pcs in carton
  • 600ml x 20 pcs in carton

Technical Data

  • Curing: One component oxime
  • Density: 1, 36 gr/ml
  • Tack-Free time: 10 minutes
  • Curing Rate: 2-3 mm/day
  • Shore A hardness: 21
  • Elongation at break <700 %
  • Elastic Recovery: >95%
  • Movement Capability: %25
  • Application temperature: Between +5C and +40C
  • Service temperature: Between -40C and +180C