3M Scotch-Weld DP420 Black Epoxy Adhesive Overview

3M DP420 Black Epoxy Adhesive is a high-performance, two-part epoxy adhesive designed for superior shear and peel adhesion. Known for its outstanding environmental durability, this toughened epoxy is ideal for bonding various substrates, including metals, ceramics, wood, glass, composites, and plastics. Its strong bond can replace mechanical fasteners like screws and rivets, making it perfect for demanding structural applications. The 2:1 mix ratio ensures easy, precise application, and with a 20-minute work life, there is ample time for positioning and adjustments, making it suitable for projects that require flexibility and extended setup time.

All 3M DP420 Epoxy Adhesives

• 3M Scotch-Weld DP420 Black Epoxy
• 3M Scotch-Weld DP420 Off-White Epoxy
• 3M Scotch-Weld DP420NS Non-Sag Black Epoxy

DP420 Black Features and Benefits

• 20-Minute Work Life: Allows ample time for repositioning and adjustments before curing.
  
• High Shear and Peel Strength: Delivers durable bonds capable of withstanding demanding conditions.
  
• Toughened for Impact Resistance: Ideal for applications that face tough environmental challenges.
  
• Easy 2:1 Mix Ratio: Ensures quick and consistent mixing for precise application.
  
• Outstanding Environmental Performance: Provides reliable adhesion, even in extreme conditions.

Specifications

• Series: 3M Scotch-Weld DP420
  
• Type: Epoxy Adhesive
  
• Application: Structural Bonding
  
• Substrates: Metal, Ceramics, Wood, Glass, Many Composites and Plastics
  
• Color: Black
  
• Available Sizes: 50 mL, 200 mL, and 400 mL
  
• Mix Ratio by Volume (B:A): 2:1
  
• Shore D Hardness: 77
  
• Worklife: 20 Minutes (10g Mixed)
  
• Full Cure Strength: 24 Hours
  
• Certifications: UL 94 HB
  
• Storage Temperature: 60°F to 80°F (16°C to 27°C)

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

Applications

3M DP420 Epoxy is ideal for small joint assembly, heavy-duty mounting, metalworking, and carbon fiber epoxy bonding. It works well in structural applications that require a 20-minute work life, allowing for easy repositioning and adjustment before curing.