Dow 3-7509 Silicone Insulating Glass Sealant Datasheet Dow 3-7509 Silicone Insulating Glass Sealant

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  • Description for Dow 3-7509 Silicone Insulating Glass Sealant

    Good unprimed adhesion to uncoated glass and aluminum; readily tooled; non-slump.

    *See Terms of Use Below

    Application Type Sealant
    1 Part or 2 Part 1-Part
    Material Form Paste
    Substrate Aluminum, Uncoated glass
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture
    Cure Temperature (°C) 25
    Cure Time (min) 480, 1,440, 10,080
    Viscosity (cPs) Non-slump
    Color Black
    Key Specifications FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency): FDA Regulation 21 CFR 177.2600

  • Technical Data for Dow 3-7509 Silicone Insulating Glass Sealant

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    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Paste
    • Substrate
    • Chemistry
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    • Color
      • Black
    • Key Specifications
      • FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency) : 177.2600 - FDA Regulation 21 CFR 177.2600
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) 480, 1,440, 10,080 Test Method
    Viscosity (cPs) Non-slump
    Tack Free Time (min) 10 Test Method
    Bond Strength
    General Bond Strength (psi) Good adhesion
    Peel Strength (piw) 100 (%), 100 (%) Test Method
    Tensile Strength (psi) 300, 123 Test Method
    Hardness
    Shore A Hardness 35 Test Method
    Elongation (%) 4 Test Method
    Flexibility Flexible
    Modulus (psi) High, 59 Test Method
    Other Properties
    Specific Gravity 1.040 Test Method
    Business Information
    Shelf Life Details Product should be stored at or below 27°C (80°F) in original, unopened containers.
    Shelf Life Temperature (°F) <81
    Not Good For
    Don't Use For oil-based caulks, green or partially vulcanized rubber gaskets, tapes
    Don't Use With impregnated wood, corrosion-sensitive coated glass

  • Best Practices for Dow 3-7509 Silicone Insulating Glass Sealant

    *See Terms of Use Below

    1. Surface Preparation

      Before using this product, clean all surfaces, removing all foreign matter and contaminants, such as grease, oil, dust, water, frost, surface dirt, old sealants or glazing compounds and protective coatings. Clean all surfaces by mechanical or solvent procedures. Always wipe solvents on and off with clean, oil- and lint-free cloths.

      Follow solvent manufacturer’s recommended safe handling instructions and applicable federal, state and local laws.

    2. Testing

      Dow Corning recommends several in-house quality control tests to ensure optimum sealant performance. These tests include: Cure test to ensure expected sealant cure rate.

      Tab adhesion tests to ensure proper sealant adhesion to production surfaces.

      These tests should be performed every time sealant batches are changed. Specific procedures for these recommended tests can be supplied by Dow Corning.

  • Comparable Materials for Dow 3-7509 Silicone Insulating Glass Sealant

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    Spec Engine® Results

    • Dow
      732 Multi-Purpose Sealant(Dow)

      One-part; non-slumping RTV paste, good resistance to weathering, moisture and temperature extremes; cures to a tough rubbery solid.

    • Hernon
      Silastomer 343(Hernon)

      A high performance, single component, ready to use adhesive / sealant. It has a paste-like consistency, which cures to a tough, resilient and durable silicone rubber when exposed to moisture in the air.

    • Dow
      Dowsil SE 9185 Clear or White Adhesive(Dow)

      A one-part moisture cure adhesives, translucent or white, non-flowing adhesive, fast tack free with controlled volatility, Sealing PCB System assembly equipment and modules

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C 50 percent Relative Humidity
Cure Time Test Methods
Cure Time Test Method
480 min CTM 0663, Deep section cure, 0.070 inches
1,440 min CTM 0663, Deep section cure, 0.112 inches
10,080 min 50 percent Relative Humidity
Tack Free Time Test Methods
Tack Free Time Test Method
10 min ASTM D 2377
Peel Strength Test Methods
Peel Strength Cure Time Cure Temperature Cure Humidity Substrate Test Method
100 (%) 10,080 min 25°C 50 % Glass ASTM C 794, 100 percent, Cohesive failure
100 (%) 10,080 min 25°C 50 % Aluminum ASTM C 794, 100 percent, Cohesive failure
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Substrate Test Method
300 psi 10,080 min 25°C 50 % ASTM D 412
123 psi 10,080 min 25°C 50 % Glass 100 percent cohesive failure, 1/2" x 1/2" x 2" (13 x 13 x 51-mm) joint
Elongation Test Methods
Elongation Test Method
4 % ASTM D 412, 7 Days at 25°C (77°F) and 50 percent Relative Humidity
Modulus Test Methods
Modulus Temperature Test Method
High
59 psi 25°C 25% Modulus, 7 Days at 25°C (77°F) and 50 percent Relative Humidity
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method Hardness Temperature
35 ASTM D 2240, 7 Days at 25°C (77°F) and 50 percent Relative Humidity 25°C
Specific Gravity Test Methods
Specific Gravity Test Method
1.040 CTM 0044