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Description for Dow SL Parking Structure Sealant
Good weatherability; resilient; long life reliability; unprimed adhesion; seals irregular surfaces; self-leveling.Application Type Bond, Seal 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
Overview
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1 Part or 2 Part
- 1-Part
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Material Form
- Paste
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Chemistry
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Application Method
- Dispenser - Air-powered gun
- Brush - Hand
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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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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 |