MMA 300 Black Structural Methacrylate Adhesive for Metal and Plastic - 5 Minute Working Time

MMA 300 Black Adhesive for High-Strength Metal and Plastic Bonding

Infinity Bond MMA 300 Black is a fast-setting, two-part structural methacrylate adhesive designed for high-strength bonding of metals, plastics, and composites. Available in both 50 ml and 400 ml cartridges, this 1:1 mix-ratio adhesive offers a working time of 3 to 6 minutes and reaches 90% of its ultimate bond strength in just 10 to 15 minutes. It bonds exceptionally well to stainless steel, aluminum, steel, fiberglass, PVC, and more, with minimal surface preparation required. The black pigment provides visual contrast for inspection, identification, or aesthetic applications without compromising performance.

Note: There is also an MMA 300 Off-White for standard bonding applications.

Features and Benefits

• Black Pigmented Formula: Offers a dark finish for visual contrast, identification, or aesthetic preference compared to the amber alternative
• Fast-Setting Performance: 3–6 minute working time with 10–15 minute fixture time at room temperature
• High Bond Strength: Achieves 90% of ultimate strength quickly on metals, plastics, and composites
• Excellent Material Compatibility: Bonds stainless steel, aluminum, steel, fiberglass, PVC, and more
• Minimal Surface Prep Required: Strong structural bonds with little to no substrate preparation
• Easy Dispensing: Available in 50 ml and 400 ml cartridges for use with standard 1:1 dispensers

Specifications

• Series: MMA 300
• Type: Methyl Methacrylate Structural Adhesive
• Color: Black
• Mix Ratio: 1:1
• Substrates: Recommended for bonding Fiberglass, ABS, PVC, Steel, Stainless Steel, Aluminum, and other Engineered Plastics
• Working Time: 3 to 6 minutes (at 75°F / 24°C)
• Fixture Time: 10 to 15 minutes (at 75°F / 24°C)
• Can Be Moved In: 18 to 24 minutes
• Operating Temperature: 65°F to 250°F (18°C to 121°C)
  
• Gap Filling: Up to 0.250 inches
• Mixed Density: 8.1 lbs/gal (0.96 g/cc)
• Flash Point: 51°F (11°C) – See SDS for full safety information
• Cartridge Size: 50 ml and 400 ml
• Shelf Life: 1 Year (unopened at room temperature)

Note: Not recommended for low-energy surfaces like polyethylene or polypropylene.