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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.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
Overview
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Application Type
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1 Part or 2 Part
- 1 Part or 2 Part - 1 Part
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Material Form
- Paste
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Chemistry
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Cure Method
- Moisture / Condensation Cure - Moisture
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Color
- Black
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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 -
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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 |
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10 min | ASTM D 2377 |
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 |
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 |
Elongation Test Methods
Elongation | Test Method |
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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 |
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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 |
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1.040 | CTM 0044 |

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