DOWSIL™ 3363 Insulating Glass Sealant

Insulating Glass Silicone Sealants

DOWSIL™ 3363 is the next generation in insulating glazing sealants suitable for structural glazing. It helps enable trends in modern glass facades of units with more glass and less frame to be accommodated in the building design without compromising any design strength. It permits the design of smaller, more economic joints which can be filled faster leading to the potential for productivity improvements. It is a two part neutral, fast curing high modulus silicone sealant with a design strength approximately 50% higher than other conventional silicone sealants.

Product info


  • Ideal for double or triple glazed, gas filled units with high climatic loads
  • Suitable for hurricane and bomb blast
  • Up to 5% more light transparency
  • Less thermal conductivity due to smaller joints
  • Increased manufacturing capability
  • European Technical Approval ETA 13/0359
  • For gas-filled IG applications according to EN 1279, SNJF, CEKAL
  • Tested according to EN15434
  • Outstanding resistance to ozone and ultraviolet (UV)

Substrate Type

  • Coated and reflective glasses
  • Aluminum
  • Stainless and galvanized steel
  • Plastic



Technical Information

Where to use Interior/Exterior
Paintable No
Time to cure 10 minutes
Time to cure disclaimer Working time
Container Type Drum and Pail
Sizes Base available in 250kg drums, 20L pails, catalyst available in 25kg pail
Application method Gun


Application Instructions

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