Dow SL Parking Structure Sealant Datasheet Dow SL Parking Structure Sealant

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  • Description for Dow SL Parking Structure Sealant

    Good weatherability; resilient; long life reliability; unprimed adhesion; seals irregular surfaces; self-leveling.

    *See Terms of Use Below

    Application Type Seal, Bond
    1 Part or 2 Part 1 Part
    Material Form Paste
    Manufacturer Dow
    Chemistry Silicone
    Cure Method Moisture
    Cure Temperature (°C) 25
    Cure Time (min) 20,160 to 30,240, >30,240
    Viscosity (cPs) Self-leveling
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -45

  • Technical Data for Dow SL Parking Structure Sealant

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    Overview
    • Application Type
    • 1 Part or 2 Part
      • 1 Part or 2 Part - 1 Part
    • Material Form
      • Paste
    • Chemistry
    • Application Method
      • Dispenser - Air-powered gun
      • Brush - Hand
    • Cure Method
      • Moisture / Condensation Cure - Moisture
    Specifications
    Cure Specs
    Cure Temperature (°C) 25 Test Method
    Cure Time (min) 20,160 to 30,240, >30,240 Test Method
    Viscosity (cPs) Self-leveling
    Work / Pot Time (min) <60 Test Method
    Bond Strength
    Tensile Strength (psi) 42 Test Method
    Material Resistance
    High Temperature Resistance (°C) 149
    Low Temperature Resistance (°C) -45
    Hardness
    Elongation (%) 1,500, >800 Test Method
    Shore OO Hardness 50 Test Method
    Flexibility Flexible, Resilient
    Modulus (psi) Ultra-low, 15, 7, 8 Test Method
    Other Properties
    Flash Point (°F) 212.0
    Business Information
    Shelf Life Details When stored in the original, unopened container at or below 32°C (90°F), Dow Corning SL Parking Structure Sealant has a shelf life of 12 months from date of manufacture. Refer to product packaging for “Use By Date.” Keep containers tightly closed.
    Shelf Life Type from date of manufacture
    Shelf Life (mon) 12

  • Best Practices for Dow SL Parking Structure Sealant

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    1. Surface Preparation

      the surface must be clean, dry and frost-free at the time of sealant application.

      Clean all concrete, masonry and stone joints of all contaminants and impurities. Porous substrates should be cleaned where necessary by grinding, saw cutting, blast cleaning (sand or water), mechanical abrading or a combination of these methods as required to provide a sound, clean, dry surface for sealant application. Dust, loose particles, etc., should be blown out of joints with dry, oil-free compressed air or be vacuum cleaned. Metal and glass surfaces adjacent to masonry should be cleaned by wiping with an oil-free absorbent cloth saturated with solvent such as xylene or toluene. Do not use alcohols as they inhibit the cure.

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Cure Temperature Test Methods
Cure Temperature Cure Time Test Method
25°C After 21 days at 25°C (77°F) and 50 percent RH
Cure Time Test Methods
Cure Time Test Method
20,160 to 30,240 min
>30,240 min After 21 days at 25°C (77°F) and 50 percent RH
Work / Pot Time Test Methods
Work / Pot Time Temperature
<60 min 25°C
Tensile Strength Test Methods
Tensile Strength Cure Time Cure Temperature Cure Humidity Test Method
42 psi >30,240 min 25°C 50(%) RH ASTM D 412, As Cured – After 21 days at 25°C (77°F) and 50 percent RH
Elongation Test Methods
Elongation Test Method
1,500 % ASTM D 412, After 21 days at 25°C (77°F) and 50 percent RH
>800 % ASTM C 1135, After 21 days at 25°C (77°F) and 50 percent RH, Ultimate
Modulus Test Methods
Modulus Test Method
Ultra-low Modulus Test Method
15 psi ASTM D 412, at 150% elongation, After 21 days at 25°C (77°F) and 50 percent RH
7 psi ASTM C 1135, at 25% elongation, After 21 days at 25°C (77°F) and 50 percent RH
8 psi ASTM C 1135, at 50% elongation, After 21 days at 25°C (77°F) and 50 percent RH
Shore OO Hardness Test Methods
Shore OO Hardness Shore Hardness Test Method Hardness Temperature
50 ASTM D 2240, After 21 days at 25°C (77°F) and 50 percent RH 25°C