MMA 440 Long Open Time Structural Adhesive for Metal, Plastic, and Composite Bonding

Infinity Bond MMA 440 is a premium structural methacrylate adhesive formulated for high-strength bonding of metals, plastics, and composites. Packaged in a 490 ml off-white cartridge and mixed at a 10:1 ratio, MMA 440 offers a long 40–60 minute working time—ideal for large parts, precise fit-ups, and multi-surface bonding. It delivers strong, durable adhesion to steel, aluminum, fiberglass, PVC, and more, with minimal surface prep required.

Performance Advantages of Infinity Bond MMA 440

• High Strength Structural Bonds: Engineered to deliver reliable adhesion to steel, aluminum, fiberglass, and engineering plastics.
  
• Long Open Time for Complex Builds: 40–60 minute work life provides ample time for careful assembly and adjustment.
  
• Minimal Surface Preparation: Performs on metals and plastics without the need for abrasion or primers.
  
• Gap-Filling Capability: Supports bond lines up to 3/8" (0.375") for irregular or non-uniform surfaces.
  
• Rapid Fixture for Increased Throughput: Reaches handling strength in as little as 80–100 minutes at room temperature.
  
• Cartridge-Based Convenience: Packaged in a 490 ml off-white 10:1 cartridge compatible with standard applicators.

Specifications

• Series: MMA 440
  
• Type: Type: Two-Part Methyl Methacrylate Structural Adhesive
  
• Color: Off-White
  
• Mix Ratio: 10:1
  
• Substrates: Recommended for Bonding Metal, Steel, Aluminum, Fiberglass and Various Plastics (Not Low Energy Surfaces)
  
• Working Time: 40 to 60 Minutes (at 75°F / 24°C)
  
• Fixture Time: 80 to 100 Minutes (at 75°F / 24°C)
  
• Can Be Moved In: 120 to 150 Minutes
  
• Operating Temperature: 65°F to 85°F (18°C to 30°C)
  
• Gap Filling: .375" (3/8")
  
• Flash Point: 51°F (11°C) – See SDS for full safety information
  
• Cartridge Size: 490 ml
  
• Shelf Life: 12 Months (unopened at room temperature)