3M 1838 B/A Green

Overview

• Application Type

  • Adhesive - Bond

• 1 Part or 2 Part

  • 1 Part or 2 Part - 2 Part
  • Part A Name - Base
  • Part B Name - Accelerator

• Material Form

  • Liquid

• Substrate

  • Glass
  • Metal - Many Metal
  • Aluminum - 2024 T3 clad aluminum
  • Steel - Cold rolled Steel
  • Plastic - Some Plastic
  • Epoxy
  • Rubber - Rubbers
  • Wood - Woods
  • Stainless Steel

• Chemistry

  • Epoxy

• Application Method

  • Flow - Flow equipment
  • Spatula/Trowel - Spatula, Trowel

• Cure Method

  • 2-Part Cure - Base/Accelerator

• Color

  • Green

• Key Specifications

  • Mil-Spec (United States Military Standard): 0-5606 - MIL-A-23941A; Mil-0-5606
  • Mil-Spec (United States Military Standard): A-21366A - MIL-A-23941A; Mil-0-5606

Specifications

Cure Specs

Cure Temperature (°C)	20 to 25, 24, 66, 93
Cure Time (min)	10,080, 120, 30
Fixture or Handling Strength Time (min)	360 to 600, 15 to 20	Test Method
Work / Pot Time (min)	60, Long	Test Method
Thixotropic	Controlled
Mix Ratio	4:5 (by volume), 1:1 (by weight)

Bond Strength

Structural/Load-Bearing	Structural
General Bond Strength (psi)	Excellent
Peel Strength (piw)	2, 4, 4	Test Method
Shear Strength (psi)	High, 1,500, 3,000, 500, 2,000 to 2,200, 1,950, 2,200, 2,250, 1,100, 3,400 to 3,800, 2,750, 1,250, 3,600, 3,250, 2,400 to 2,500, 2,250, 1,050, 2,900, 2,150	Test Method
Tensile Strength (psi)	4,290	Test Method

Material Resistance

Chemical Resistance	Hydraulic Oil, Tap Water, White Gas
Environmental Resistance	Excellent
High Temperature Resistance (°C)	82
Low Temperature Resistance (°C)	-55
Moisture/Humidity Resistance	Moisture/humidity resistance

Conductivity

Dissipation Factor	0.01200	Test Method
Dielectric Strength (V/mil)	585
Dielectric Constant	6.06	Test Method
Thermal Conductivity (W/m°K)	0.29	Test Method
Volume Resistivity (O)	1.5e15 (ohms/cm)	Test Method

Hardness

Shore D Hardness	80 to 85	Test Method
Elongation (%)	2 to 3	Test Method
Flexibility	Rigid
Modulus (psi)	344,000	Test Method

Other Properties

Glass Transition Temp (Tg) (°C)	55	Test Method
Coefficient of Thermal Expansion (CTE)	79e-6 (in./ in/°C)	Test Method

Business Information

Shelf Life Details	Store products at 80°F (27°C) or below for maximum shelf life. Higher temperatures reduce normal shelf life.;These products have a shelf life of 2 years from date of shipment when properly stored in their unopened containers. Lower temperatures can cause increased viscosity of a temporary nature. Rotate stock on a “first in-first out” basis.
Shelf Life Temperature (°F)	80
Shelf Life Type	from date of Shipment
Shelf Life (mon)	24