3M Scotch-Weld Epoxy Adhesive 1838 B/A Green

Overview

• Chemical Resistance

  • Chemical Resistance : Fluid Resistance : Water Resistance - Tap water
  • Chemical Resistance - Hydraulic oil, White gas

• Application Type

  • Adhesive - Bond

• 1 Part or 2 Part

  • 2-Part

• 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

• Industry

  • Other - Structural adhesive

• Chemistry

  • Epoxy

• Application Method

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

• Cure Method

  • Room Temperature / Air Dry - Room temperature curing
  • Pressure Sensitive (min) - Pressure sensitive
  • 2-Part Cure

• Color

  • Green - Green (Cured)

• Key Specifications

  • International Organization for Standardization - Registered to ISO 9001 standards
  • Mil-Spec (United States Military Standard) : 5606 - MIL-A-23941A; Mil-0-5606
  • Mil-Spec (United States Military Standard) : A-21366A - MIL-A-23941A; Mil-0-5606
  • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) : UL 94 HB - Recognized as meeting UL 94 HB

• Brand

  • Scotch-weld

Specifications

Cure Specs

Cure Temperature (°C)	20 to 25, 24, 66, 93, 23	Test Method
Cure Time (min)	10,080, 120, 30, 480	Test Method
Viscosity (cPs)	Controlled flow
Fixture or Handling Strength Time (min)	360 to 600, 15 to 20	Test Method
Work / Pot Time (min)	60, Long	Test Method
Open Time (min)	60
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 (lb/in width), 4 (lb/in width), 4 (lb/in width)	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

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
Volume Resistivity (O)	1.5e15 (ohms-cm)	Test Method

Hardness

Shore D Hardness	82	Test Method
Elongation (%)	2 to 3
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 24 months from date of manufacture 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 manufacture
Shelf Life (mon)	24