3M 3748

Overview

• Application Type

  • Adhesive - Bond

• 1 Part or 2 Part

  • 1-Part

• Material Form

  • Stick - Sticks

• Substrate

  • Ceramic
  • Foam - Flexible foam, Polystyrene Foam
  • Polyolefin - Polyolefins
  • Glass
  • Metal - Carbon
  • Copper
  • Plastic - Plastics
  • Acrylic (PMMA) - Acrylic
  • Polycarbonate
  • Polypropylene - Polypropylene (High Density)
  • Phenolic
  • Polystyrene (PS) - Polystyrene Foam
  • Polyethylene (LDPE, HDPE) - PolyEthylene, Polyethylene (High Density)
  • Epoxy - Epoxy Glass FR-4
  • ABS
  • Wood - Corrugated, Douglas Fir, Uncoated Card Board, Uncoated Chipboard, Coated Chipboard
  • Composites - FRP
  • Fabric
  • Paper - Coated Cardboard
  • Other - Laminate, Canvas

• Industry

  • Electronics - Conductors, Electrical, Instruments, Solder, Bundle Wires
  • Printed Circuit Board (PCB) - Printed circuit Boards
  • Connectors
  • Coils - Coil
  • Industrial - Box, Fasteners

• Chemistry

  • Hot melt

• Cure Method

  • Hotmelt - Hot melt

• Color

  • Off-White - Off White

• Key Specifications

  • UL (Underwriters Laboratory), ULC (Underwriters Laboratories of Canada), NFPA (National Fire Protection Association) - UL 94 - V2
  • FDA (U.S. Food & Drug Administration) and/or CFIA (Canadian Food Inspection Agency) : 175.105 - Applicable 21 CFR 175.105

Specifications

Cure Specs

Application Temperature (°F)	349 to 385
Viscosity (cPs)	12,500, 6,500, 4,000, 5,000	Test Method
Softening Point (°C)	144, 145, 144	Test Method
Work / Pot Time (min)	0.75	Test Method

Bond Strength

Peel Strength (piw)	High, 45, 43, 35, 35, 45, 18	Test Method
Shear Strength (psi)	235 to 240, 200 to 210, 233, 221 to 260, 220 to 270, 250	Test Method
Tensile Strength (psi)	2.6 (Mpa)	Test Method

Material Resistance

High Temperature Resistance (°C)	Good, 79, Good thermal shock resistance	Test Method

Conductivity

Dissipation Factor	0.00100	Test Method
Dielectric Strength (V/mil)	1,300	Test Method
Dielectric Constant	2.30	Test Method
Volume Resistivity (O)	7.0e17 (ohms/cm)	Test Method

Hardness

Durability	Tough
Elongation (%)	1,100
Flexibility	Flexible

Other Properties

Coefficient of Thermal Expansion (CTE)	180e-6 (cm/cm /°C)
Flash Point (°F)	536.0
% Solids (%)	100

Business Information

Shelf Life Details	Shelf life is 12 months from date of despatch by 3M when stored in the original carton at 21°C (70°F) & 50 % Relative Humidity, When stored at the recommended conditions, this product has a shelf life of 2 years after 3M ships the product to a customer or distributor.
Shelf Life Temperature (°F)	70, 120
Shelf Life Type	from date of despatch, After 3M ships the product
Shelf Life (mon)	12, 24