Bostik 7522 High Performance Epoxy

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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.

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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

Best Practices for Bostik 7522 High Performance Epoxy

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Technical Data for Bostik 7522 High Performance Epoxy

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Overview

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
Application Type
- Adhesive - Bond
1 Part or 2 Part
- 2-Part
Material Form
- Liquid
Substrate
- Ceramic - Ceramics
- Metal
- Steel
- Plastic - Plastics
- Rubber
- Wood
Industry
- Construction - Masonry
Chemistry
- Epoxy
Application Method
- Dispenser - dual barrel syringe
Cure Method
- 2-Part Cure - Resin/Hardener
Color
- Translucent
- Clear / Transparent - Clear
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

Best Practices for Bostik 7522 High Performance Epoxy

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1. 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
Comparable Materials for Bostik 7522 High Performance Epoxy

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Spec Engine^® Results
- EP1215(Resinlab)
  A two part unfilled epoxy structural adhesive designed for bonding applications requiring high strength and good impact resistance.
- 7538 General Purpose Epoxy(Bostik)
  A structural adhesive with high shear strength, good electrical properties, and excellent environmental resistance. It has good adhesion to metals, wood, reinforced plastics and masonry products.
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