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DOWSIL™ 983 (KR) Structural Glazing Sealant Base and Catalyst

A two-part silicone formulation. As supplied, the base is a smooth, white paste and the curing agent is a black paste. Once catalyzed, the material cures to a high-modulus, flexible silicone rubber that is suitable for use in structural and weatherseal applications. It features excellent adhesion to most common construction materials, a physical property profile that is more than sufficient for structural adhesive and weatherseal applications, a non-corrosive by-product, and excellent weatherability, durability and recovery after repeated extension and compression up to 25%. It is compatible with reflective glass, laminated glass and most insulating glass. It can be used in deep narrow joints to obtain a full and complete cure.(Product manufactured in S.Korea)

Properties

These values are not intended for use in preparing specifications.

Physical Properties

  • Adhesion to Yes No Alodine Aluminum, Aluminum, Anodized Aluminum, Enamelled and Reflective Glass, Fluorocarbon Coated Aluminum, Glass, Heat Strengthened Glass, Low E Coated Glass, Metal, Metal Panels, Paint, Polyester Powder Coated Aluminum/Steel, Stainless Steel
  • Appearance Yes No Opaque
  • Chemistry Yes No Neutral
  • Color Yes No White
  • Durometer - Shore A Yes No 35-45 Shore A
  • Elongation Yes No 200 %
  • Flow/Sag (Slump) Yes No <2.5 mm
  • Movement Yes No Low
  • Shelf Life Yes No 360 Days
  • Specific Gravity @ 25°C Yes No 1.34
  • Substrate Yes No Non-porous
  • Tear Strength Yes No 40 ppi
  • Tensile Strength Yes No 1.1 psi
  • Volatile Organic Content Yes No < 4 g/liter

Application Benefits

  • Primerless Adhesion Yes No Primerless

Processing-Formulating Benefits

  • Cure System Yes No 2-Part Cure
  • Cure Type Yes No Neutral Cure
  • Number of Parts Yes No Two
  • Where Used Yes No Factory
  • Working Time Yes No 20-40 Minutes

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DOWSIL™ 983 (KR) Structural Glazing Sealant Base and Catalyst
No Technical Data Sheets are available online for this material.
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DOWSIL™ 983 (KR) Structural Glazing Sealant Base and Catalyst
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