Description

Infinity Bond MMA 421 Impact Resistant Methacrylate Adhesive – 13 – 17 Minute Working Time

Infinity Bond MMA 421 Impact Resistant Methacrylate Adhesive Overview

Infinity Bond MMA 421 is a premium two-component methacrylate adhesive with a 10:1 mix ratio, specifically designed for bonding metals, composites, and most plastics. With a medium-fast working time of 13–17 minutes, it provides flexibility for various application and production needs. This high-performance adhesive excels in industrial and transportation applications, offering reduced surface read-through for professional finishes. Its outstanding fatigue and impact resistance, coupled with minimal surface preparation requirements, makes it a reliable choice for demanding assembly operations.

Note: Each cartridge comes with 2 static mixing nozzles for efficient dispensing.

MMA 421 Features and Benefits

• Medium-Fast Working Time: Well suited for diverse applications and production timelines.
• Primerless Metal Bonding: Bonds effectively to most metals without the need for primers or extensive surface preparation.
• Superior Environmental Resistance: Forms permanent, durable bonds capable of withstanding harsh environmental conditions.
• Non-Sag Formula: Maintains its position during application, even on inverted or vertical surfaces.
• Robust Strength and Flexibility: Exceptional resistance to fatigue, impact, and shock, ensuring long-term reliability.
• Reduced Surface Read-Through: Minimizes visible bond lines, reducing the need for additional post-finishing work.

Specifications

• Model: MMA-421-BLK
• Type: Methyl Methacrylate Structural Adhesive
• Substrates:  
  • Composites: Epoxy, Polyester/DCPD, Vinyl Ester, Gelcoats
  • Metals: Aluminum, Carbon Steel, Stainless Steel, Coated Metals
  • Thermoplastics: ABS, Acrylics, PVC/CPVC, Styrenics
• Color: Black
• Cartridge Size: 490 mL
• Mix Ratio: 10:1
• Working Time: 13 – 17 Minutes
• Fixture Time: 30 – 40 Minutes
• Density: 8.51 lb/gal (1.02 g/cc)
• Tensile Strength: >1700 PSI (12 Mpa)
• Maximum Tensile Elongation: >40 – 50%
• Tensile Modulus: >30,000 – 40,000 PSI (207-276)
• Lap Shear Strength: >2,300 PSI (16 MPa)
• Service Temperature: -40°F to 180°F (-40°C to 82°C)
• Application Temperature: 65°F to 80°F (18°C to 27°C)
• Storage Temperature: 65°F to 80°F (18°C to 27°C)
• Shelf Life: 6 Months from Date of Shipment

Note: All the above values are typical and are not meant to be used as specifications.