Bostik 7538 General Purpose Epoxy

Overview

• Application Type

  • Adhesive - Bond

• 1 Part or 2 Part

  • 1 Part or 2 Part - 2 Part

• Material Form

  • Liquid

• Substrate

  • Ceramic - Ceramics
  • Metal
  • Steel
  • Plastic - Reinforced Plastics
  • Rubber
  • Wood
  • Other - masonry

• Industry

  • General Purpose

• Chemistry

  • Epoxy

• Application Method

  • Dispenser - dual barrel syringe

• Cure Method

  • 2-Part Cure - Resin/Hardener

• Color

  • Green

• Key Specifications

  • Mil-Spec (United States Military Standard): A-52194-A - Conforms to MIL-A-52194-A; Meets the Requirements of MMM-A-134, Type II
  • Mil-Spec (United States Military Standard): MMM-A-134 - Conforms to MIL-A-52194-A; Meets the Requirements of MMM-A-134, Type II

Specifications

Cure Specs

Viscosity (cPs)	40,000 to 55,000	Test Method
Mix Ratio	1:1 (by volume)

Bond Strength

Structural/Load-Bearing	Structural
Peel Strength (piw)	3 (lbs/lineal in.)	Test Method
Shear Strength (psi)	High, 3,000, 2,000, 3,000, 500	Test Method
Impact Strength (psi)	0.5 (ft.lbs./inch)	Test Method
Compressive Strength (psi)	11,000

Material Resistance

Chemical Resistance	Good Inorganic Acids, Excellent Alkalis, Good Hydraulics Acids
Relative Solvent Resistance	Chemical Resistance: Excellent Solvents
Environmental Resistance	Excellent environmental resistance
High Temperature Resistance (°C)	99
Low Temperature Resistance (°C)	-51

Conductivity

Volume Resistivity (O)	10(12) (cm)

Hardness

Shore D Hardness	80, 20, 70, 80	Test Method
Elongation (%)	2	Test Method

Other Properties

Specific Gravity	1.400
Coefficient of Thermal Expansion (CTE)	40e-6

Business Information

Shelf Life Details	For optimum shelf-life of these products, store @ 50~90°F (10~32°C). Storing at lower temperatures causes a temporary increase in viscosity. The ICC shipping classification is “Adhesives NOI”.;The maximum shelf-life is 2 (two) years from date of manufacture (“DoM”). Bostik may, in its distribution literature or in other written or verbal communications, state the shelf-life as “one (1) year from time of shipment to the original purchaser” with the intention that this allows for a reasonable period of time the product may be stocked by a distributor while still maintaining an acceptable shelf-life of at least 1 year.
Shelf Life Temperature (°F)	50 to 90
Shelf Life Type	from date of manufacture
Shelf Life (mon)	24