It is particularly important within insulating glass units (IG), double or triple, that minimal levels of water vapour penetrate into the space between the panes and, in case of noble gas-filled units, the gas loss should be minimal, as stipulated in BS EN 1279. Sika offers a complete range for IG edge sealing including primary and secondary sealants, suitable for gas retention of 30+ years.

Sikasil® IG-25

Insulating glass secondary seal.

 

Key Features

  • Ensures glass panels are tightly held together, minimising excessive movement in the IG seal
  • Outstanding UV resistance
  • Design tensile strength 0.14 N/mm2

 

Application

  • Air filled dual sealed IG units
  • Air filled IG units in SG facades (where silicones can only be used)

 

Chemical Base

  • Neutral cure silicone, 2-part
  • High modulus
Sikasil® IG-25 HM Plus

Ultra high modulus secondary seal.

 

Key Features

  • Lowest argon loss rates (0.3%)
  • High performance design tensile strength 0.19 N/mm2 (MPa)
  • Outstanding UV resistance

 

Application

  • Air and argon filled dual sealed IG units
  • For all SG facades

 

Chemical Base

  • Neutral cure silicone, 2-part
  • High modulus

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