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Description for Bostik 7522 High Performance Epoxy
A two-part structural, adhesive system for applications that require high peel and high shear strengths. With excellent adhesion to rubber, plastics, wood and metal, it has good shock and impact resistance.Chemical Resistance Good Alcohol, Chemical Resistance: Good Solvents, Chemical Resistance: Good Solvents Chlorinated, Chemical Resistance: Good Inorganic Acids, Good Alkalis, Chemical Resistance: Good Hydraulics Acids Application Type Bond 1 Part or 2 Part 2-Part Material Form Liquid Substrate Ceramics, Metal, Plastics, Rubber, Steel, Wood Manufacturer Bostik Chemistry Epoxy Cure Method Resin/Hardener Cure Temperature (°C) 20 to 25 Cure Time (min) 2,880 to 4,320, 1,440, 2,880, 4,320 Viscosity (cPs) 11,000 Color Clear, Translucent High Temperature Resistance (°C) 99 Low Temperature Resistance (°C) -51 Volume Resistivity (O) 10(12) (ohm-cm) Key Specifications DOD (U.S. Department of Defense): Meets DOD A 82720 (1) specifications -
Technical Data for Bostik 7522 High Performance Epoxy
Overview
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Chemical Resistance
- Chemical Resistance - Good Alkalis, Good Alcohol
- Chemical Resistance : Relative Solvent Resistance - Good Solvents, Good Solvents Chlorinated
- Chemical Resistance : Acid Resistance - Good Inorganic Acids, Good Hydraulics Acids
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Application Type
- Adhesive - Bond
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1 Part or 2 Part
- 2-Part
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Material Form
- Liquid
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Industry
- Construction - Masonry
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Chemistry
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Application Method
- Dispenser - dual barrel syringe
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Cure Method
- 2-Part Cure - Resin/Hardener
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Color
- Translucent
- Clear / Transparent - Clear
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Key Specifications
- DOD (U.S. Department of Defense) : A-82720 - Meets DOD A 82720 (1) specifications
Specifications
Cure Specs
Cure Temperature (°C) 20 to 25 Cure Time (min) 2,880 to 4,320, 1,440, 2,880, 4,320 Viscosity (cPs) 11,000 Test Method Mix Ratio 1:1 (by volume) Bond Strength
Structural/Load-Bearing Structural Peel Strength (piw) High, 15 to 20 (lbs/lineal in.) Test Method Shear Strength (psi) High, 2,800, 3,000, 3,000, 200 Test Method Impact Strength (psi) 1.0 (ft.lbs./inch) Test Method Compressive Strength (psi) 12,000 Material Resistance
High Temperature Resistance (°C) 99 Impact Resistance Good impact resistance Low Temperature Resistance (°C) -51 Vibration Resistance/Shock Resistance Good shock resistance Conductivity
Dielectric Strength (V/mil) 500, 500 Volume Resistivity (O) 10(12) (ohm-cm) Hardness
Shore D Hardness 75, 45, 70, 75 Test Method Elongation (%) 5 Test Method Other Properties
Specific Gravity 1.070 Coefficient of Thermal Expansion (CTE) 70e-6 -
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Best Practices for Bostik 7522 High Performance Epoxy
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Mixing
Resin and hardener are metered automatically in proper ratio, mixed in the static mixer and dispensed with pinpoint accuracy. No measuring, mixing or waste
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Viscosity Test Methods
Viscosity | Temperature |
---|---|
11,000 cPs | 20°C |
Work / Pot Time Test Methods
Work / Pot Time | Test Method |
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Impact Strength Test Methods
Impact Strength | Test Method |
---|---|
1.0 (ft.lbs./inch) | Izod, of notch |
Peel Strength Test Methods
Peel Strength | Type | Test Temperature |
---|---|---|
High | ||
15 to 20 (lbs/lineal in.) | T-Peel Strength | 24°C |
Shear Strength Test Methods
Shear Strength | Substrate | Test Temperature |
---|---|---|
High | ||
2,800 psi | Steel | |
3,000 psi | -54°C | |
3,000 psi | 24°C | |
200 psi | 82°C |
Elongation Test Methods
Elongation | Test Method |
---|---|
5 % | Elongation @ break |
Shore D Hardness Test Methods
Shore D Hardness | Shore Hardness Test Method |
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75 | after full cure |
45 | after cure time @ 68°F, after 24 hrs |
70 | after cure time @ 68°F, after 48 hrs |
75 | after cure time @ 68°F, after 72 hrs |