Description
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 1317 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: -40F to 180F (-40C to 82C)
- Application Temperature: 65F to 80F (18C to 27C)
- Storage Temperature: 65F to 80F (18C to 27C)
- Shelf Life: 9 Months from Date of Shipment
Note: All the above values are typical and are not meant to be used as specifications.






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