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DOWSIL™ 993 Structural Glazing Base and Catalyst

A two-component, neutral curing silicone formulation specifically developed for the structural bonding of glass, metal and other building components.

Uses:

  • Structural glazing

Benefits:

  • Resistant to ozone
  • High level of mechanical properties
  • Odorless and non-corrosive cure
  • Excellent weathering characteristics
  • High resistance to ultra-violet radiation, heat and humidity

Properties

These values are not intended for use in preparing specifications.

Typical Properties

  • Adhesion to Yes No Anodized Aluminum, Enamelled and Reflective Glass, Glass, Heat Strengthened Glass, Light-Weight Stone Panels, Stainless Steel
  • Appearance Yes No Opaque
  • Chemistry Yes No Neutral
  • Color - Part A Yes No White
  • Color - Part B Yes No Black
  • Cure System Yes No 2-Part Cure
  • Cure Type Yes No Alkoxy Cure, Neutral Cure
  • Durometer - Shore A Yes No 40 Shore A
  • Dynamic Viscosity Yes No 40000 Centipoise
  • Elongation Yes No 130 %
  • Flow Yes No NonSag
  • Movement Yes No Low
  • Number of Parts Yes No Two
  • Primerless Adhesion Yes No Primerless
  • Resistance Type Yes No Ozone Resistance, Thermal Resistance, UV Resistance, Water Resistance
  • Service Temperature High Yes No 150 °C
  • Service Temperature Low Yes No -50 °C
  • Shelf Life Yes No 360 Days
  • Specific Gravity @ 25°C Yes No 1.3
  • Substrate Yes No Non-porous
  • Tack-Free Time-50% RH Yes No 80 to 100 Minutes
  • Tear Strength Yes No 34 ppi
  • Tensile Strength Yes No 138 psi
  • Water Resistant Yes No true
  • Where Used Yes No Factory
  • Working Time Yes No 10 to 30 Minutes
Burj Khalifa Building in Dubai, United Arab Emirates

Structural silicone glazing is today’s most innovative form of curtainwall construction. Glass, ceramic, metal, stone and composite panels are adhered to building frames using structural silicone adhesive/sealants. These adhesives not only support the panels; they also transmit windloads to the structure and seal the building from the elements and allows total vision glass without thermal bridges.

DOWSIL™ 993 Silicone Structural Glazing Sealant meets European standard for structural glazing (ETA-01/0005) in all color shades. Fast and easy catalyst color change in production will be supported by DOWSIL™ 3535 Catalyst Cleaner.

DOWSIL™ 993 Silicone Structural Glazing Sealant was used at Burj Khalifa, with a height of 828 m the world’s tallest building and also the highest installation of an aluminium and glass facade.

No Safety Data Sheets are available online for this material
Please Contact Dow for additional information.

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DOWSIL™ 993 Structural Glazing Base and Catalyst
No Technical Data Sheets are available online for this material.
Please Contact Dow for additional information.

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DOWSIL™ 993 Structural Glazing Base and Catalyst
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