Dow Paintable Silicone Sealant Datasheet Dow Paintable Silicone Sealant

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  • Description for Dow Paintable Silicone Sealant

    Bonds to masonry; low-odor cure; weather resistant; remains flexible.

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    Application Type Bond, Seal
    1 Part or 2 Part 1-Part
    Material Form Paste
    Substrate Siding materials
    Industry Doors, Cables, Around window frames
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture, RTV, Latex-cure, Water-based
    Application Temperature (°F) 36 to 90
    Cure Time (min) 1,440 to 10,080
    Color White
    High Temperature Resistance (°C) 93
    Low Temperature Resistance (°C) -40

  • Technical Data for Dow Paintable Silicone Sealant

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    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1-Part
    • Material Form
      • Paste
    • Substrate
      • Stone - Siding materials
      • Other - Painted surfaces
    • Industry
      • Industrial - Around pipes, Eaves troughs, Gutters, Roof penetrations, Tubs, Vents
      • Cable - Cables
      • Construction - Plumbing fixtures, Showers, Sinks, Masonry
      • Construction Door - Doors
      • Construction Window - Around window frames
    • Chemistry
    • Application Method
      • Dispenser - Nozzle
    • Cure Method
      • Moisture / Condensation Cure - Moisture
      • RTV (Room Temperature Vulcanization) - RTV
      • Other - Latex-cure, Water-based
    • Color
      • White
    Specifications
    Cure Specs
    Application Temperature (°F) 36 to 90
    Cure Time (min) 1,440 to 10,080
    Set Time (min) 1,440 Test Method
    Tack Free Time (min) 45 to 60 Test Method
    Bond Strength
    Tensile Strength (psi) 150 Test Method
    Material Resistance
    Environmental Resistance Environmental resistance, Weather resistance
    High Temperature Resistance (°C) 93
    Low Temperature Resistance (°C) -40
    Hardness
    Shore A Hardness 25, 20 to 25 Test Method
    Elongation (%) 9 Test Method
    Flexibility Flexible
    Business Information
    Shelf Life Details Do not freeze. Store between 35 and 90°F (2 and 32°C). Dow Corning Paintable Silicone Sealant has a usable life of 22 months from date of manufacture. Refer to product packaging for use-by date. To store short term, replace cap., To store long term, unscrew nozzle, screw cap in cartridge and store nozzle in cap.
    Shelf Life Temperature (°F) 36 to 90
    Shelf Life Type From date of manufacture
    Shelf Life (mon) 22
    Not Good For
    Don't Use For Structural glazing, For prolonged submersion in water or below-grade applications.
    Don't Use With oily woods or some plastics

  • Best Practices for Dow Paintable Silicone Sealant

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    1. Surface Preparation

      Cut out and remove all old caulk for repair applications.

    2. Application

      For best results, apply sealant at temperatures between 35 and 90°F (2 and 32°C) and when no rain or high humidity is expected within 24 hours of application.

      Install back-up spacing material for better filling, especially if width exceeds 1/2" to maximize Dow Corning Paintable Silicone Sealant is available from: bonding results. Open-cell polyethylene foam backer rod can be used.

      Cut snub nose above threads, reattach and cut nozzle to desired size. Insert into a caulking gun.

      Extrude sealant with a smooth, steady motion, and ensure complete fill of joint cavity before proceeding.

    3. Clean-Up

      First, apply solvent to a lint-free cloth and vigorously wipe bonding surfaces to remove dirt and residue. Then, use a dry wipe to remove remaining solvent and residue for optimum cleaning. Repeat if necessary. Surfaces must be clean, dry, oil- and frost-free for best results. (Recommended solvents include isopropyl alcohol, toluene, xylene, naphtha or similar solvent.)

      Remove uncured sealant with a water-dampened cloth.

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Set Time Test Methods
Set Time Set Temperature Test Method
1,440 min 25°C 1/8", At 77°F 25°C and 50% relative humidity.
Tack Free Time Test Methods
Tack Free Time Tack Free Temperature Test Method
45 to 60 min 25°C 77°F 25°C and 50% relative humidity.
Tensile Strength Test Methods
Tensile Strength Cure Time
150 psi 10,080 min
Elongation Test Methods
Elongation Test Method
9 % After 7 days
Shore A Hardness Test Methods
Shore A Hardness Shore Hardness Test Method
25 Hardness/Durometer Test Method
20 to 25 After 7 days