Products

3M™ Scotch-Weld™ Acrylic Adhesive DP820

Brand: 3M™ Scotch-Weld™
Package Sizes: 50 ml, 490 ml cartridges
Shelf Life: 12 months

Product Description

3M™ Scotch-Weld™ Acrylic Adhesive DP820 is a two-part, fast-curing acrylic adhesive designed for structural bonding applications. It offers high strength, excellent impact resistance, and flexibility, making it ideal for bonding metals, plastics, and composites. This adhesive provides good gap-filling properties and is suitable for industrial, transportation, and general manufacturing applications.

Key Features

  • High-strength bonding – excellent structural performance
  • Fast curing – handling strength achieved in approximately 20 minutes
  • Good impact and peel resistance – enhances durability
  • Bonds metals, plastics, and composites – versatile adhesion
  • Gap-filling capability – ideal for uneven surfaces

Recommended Applications

  • Automotive and transportation – structural bonding of metals and plastics
  • Aerospace and defense – composite bonding applications
  • Electronics and electrical assembly – impact-resistant bonding
  • Industrial equipment manufacturing – strong, durable bonds
  • Signage and display – secure panel and frame attachment

Technical Data

Uncured Properties

Property Value
Color Off-White
Mix Ratio (B:A) by Volume 1:1
Base Resin Acrylic
Viscosity (Mixed, at 23°C) 45,000 – 75,000 cP

Curing & Strength Buildup

Time Strength (Aluminum, ASTM D1002, 23°C)
10 min 50 psi
20 min Handling Strength
1 hour ~1,000 psi
24 hours 3,500 psi
Property Value
Work Life (23°C) 8 – 12 min
Fixture Time ~20 min
Time to Full Cure (23°C) 24 hours
Elongation at Break 80-120%
Tensile Strength 3,000 psi (20.7 MPa)

Performance Characteristics

Substrate Overlap Shear Strength (psi) (ASTM D1002, 23°C)
Aluminum 3,500 psi
Cold Rolled Steel 3,000 psi
Fiberglass (FRP) 2,500 psi
ABS Plastic 1,000 psi
Polycarbonate 1,200 psi
Test Temperature Strength
Peel Strength (Aluminum, ASTM D1876) 23°C High
Lap Shear Strength after Water Immersion 23°C 80% of original strength

Electrical & Thermal Properties

Property Value
Service Temperature Range -55°C to 149°C (-67°F to 300°F)

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