3M Scotch-Weld DP820 Acrylic Adhesive

3M Scotch-Weld DP820 Acrylic Adhesive Overview

3M DP820 Acrylic Adhesive is a toughened, two-part adhesive featuring a 1:1 mix ratio for convenient application. With excellent shear and peel strength, DP820 is ideal for bonding metals, ceramics, wood, and most plastics. It requires minimal surface preparation and offers a 15 to 20-minute work life for easy adjustments during assembly. Once applied, the adhesive forms durable, high-strength bonds that can replace mechanical fasteners such as rivets and screws. It also performs well in high-humidity environments, maintaining bond integrity under various conditions.

DP820 Features and Benefits

• 15 to 20-Minute Work Life: Allows ample time for repositioning and adjustments before curing.
  
• Excellent Shear and Peel Strength: Delivers durable bonds capable of withstanding demanding conditions.
  
• Toughened Adhesive: Formulated for increased impact resistance and durability.
  
• 1:1 Mix Ratio: Ensures easy mixing and application for consistent results.
  
• Minimal Surface Preparation: Bonds effectively to a variety of substrates with little to no prep.

Specifications

• Series: 3M Scotch-Weld DP820 Off-White
  
• Type: Acrylic Structural Adhesive
  
• Application: Bonding
  
• Substrates: Many Metals, Ceramics, Wood, Most Plastics
  
• Color: Off-White
  
• Available Sizes: 50 mL, 200 mL, 400 mL Cartridges
  
• Mix Ratio by Volume (B:A): 1:1
  
• Shore D Hardness: 75
  
• Worklife: 15 to 20 Minutes
  
• Open Time: 15 Minutes
  
• Set Time: 30 to 40 Minutes
  
• Time to Full Cure: 24 to 48 Hours
  
• Storage Temperature: Cool Dry Area Less Than 80°F (27°C).
  
• Refrigerated Storage: 40°F to 55°F (4°C to 13°C) Extends Shelf Life
  

Note: All results are based on testing at 72°F (22°C).

Applications

3M DP820 methacrylate adhesive is ideal for metalworking in industries such as HVAC, appliance manufacturing, and specialty vehicles. It’s also suitable for sign manufacturing, including panel-to-frame bonding and letter attachment. It is frequently used for bonding plastics, composites, and powder coats to metals in applications where a longer open time is necessary.