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Sikasil® WT-40

High-performance, 1-component window bonding adhesive

Sikasil® WT-40 is a 1-component, neutral-curing structural silicone adhesive with very high mechanical strength, for structural bonding of insulating glass units into window frames and for back-bedding applications.  

  • Excellent adhesion to a wide variety of substrates
  • Outstanding UV and weathering resistance
  • Very high mechanical strength
  • Good gap-filling capabilities
  • Remains flexible over a wide temperature range
  • Long-term durability
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