Products

3M™ Scotch-Weld™ Multi-Material Composite Urethane Adhesive DP6310NS

Brands: 3M™ Scotch-Weld™

Package Sizes:

  • Duo-Pak Cartridges: 48.5 mL, 400 mL

Shelf Life: 12 months

Product Description

3M™ Scotch-Weld™ Multi-Material Composite Urethane Adhesive DP6310NS is a green, non-sag, two-component urethane adhesive designed for bonding a variety of composites, plastics, metals, and wood. This flexible adhesive offers excellent elongation and stress-strain properties, making it ideal for durable bonding of composite parts and multi-material assemblies.


Key Features

  • Bonds most composites and dissimilar substrates
  • Primerless to most surfaces
  • Non-sag formulation resists running and slumping
  • Excellent water and humidity resistance, with very good chemical resistance
  • Solvent-free adhesive system
  • Convenient hand-held applicator
  • Room temperature cure, with the option to accelerate curing using heat
  • Available in bulk

Recommended Applications

  • Bonding composites and plastics to metals; suitable for medium-sized parts
  • Attaching shaped composites and plastics

Typical Uncured Physical Properties

Attribute Value
Color Base (B): Green; Accelerator (A): Off-White
Viscosity Base (B): 15,000–35,000 cP; Accelerator (A): 12,000–20,000 cP
Density Base (B): 10–11 lbs/gal; Accelerator (A): 10.5–11.5 lbs/gal
Mix Ratio By volume: 1:1; By weight: 1:1.09
Open Time 10 minutes
Time to Handling Strength 45 minutes

Typical Cured Physical Properties

Attribute Value
Full Strength Cure Time 24 hours at 72°F (22°C)
Mixed Viscosity Non-sag paste
Modulus 86,000 PSI
Elongation at Break 12%
Stress at Break 2,700 PSI
Glass Transition Temperature (Tg) 60°C (RT Cure)

Typical Performance Characteristics

Overlap Shear Strength (7-day cure at 23°C)

Substrate Surface Preparation Value (psi) Failure Mode
Aluminum MEK/Abrade/MEK 2,600 Cohesive (CF)
Cold-Rolled Steel MEK/Abrade/MEK 1,900 Adhesive (AF)
Stainless Steel MEK/Abrade/MEK 3,000 Cohesive (CF)
Galvanized Steel MEK/Abrade/MEK 1,200 Adhesive (AF)
Polycarbonate (PC) IPA Wipe 710 Adhesive (AF)
ABS IPA Wipe 230 Adhesive (AF)
Glass-Filled Epoxy LW IPA/Abrade/IPA 2,400 Cohesive (CF)
Glass-Filled Polyester IPA/Abrade/IPA 1,000 Substrate Failure (SF)

Overlap Shear Strength vs. Temperature (Etched Aluminum)

Temperature Value (psi)
-40°F (-40°C) 3,500
73°F (23°C) 3,600
120°F (49°C) 1,700
180°F (82°C) 900

Environmental Resistance (30-day exposure)

Condition Substrate Percent Retention of Strength
Control SMC 100%
65°C/80% RH SMC 75%
Salt Spray (14 days) SMC 65%
Gasoline SMC 85%

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