Product Name
PLEXUS MA920 - 50 Gallon Drum Adhesive
Brief Description
Plexus MA920 is a low-odor, two-part methacrylate adhesive specifically engineered for the structural bonding of thermoplastic, metal, and composite assemblies. It represents a significant advancement in methacrylate adhesive technology, combining high strength, excellent fatigue endurance, and outstanding impact resistance into a low-odor product. This adhesive cures efficiently at room temperature and requires minimal to no surface preparation on most substrates.
Popular Applications & Uses
- Structural bonding of diverse materials including thermoplastics, metals, and composites.- Marine applications such as bonding composite stringers, liners, and deck to hull.- Transportation industry uses, including bonding floating floors and modular washrooms in railway carriages, composite body panels on buses and coaches, and components like doors, headlamp surrounds, and front grills for trucks.- General bonding applications across various manufacturing sectors.- Use in architectural cladding for construction and building services.
Industries that Commonly Use It
- Aerospace/Defense- Automotive Service/Repair- Construction/Building Services- Fabrication- General Manufacturing- Marine- Metal Fabrication- Plastic Fabrication- Transportation/Specialty Vehicle
Special and Unique Features
- Low-odor formulation enhances workplace environment.- Delivers high strength, excellent fatigue endurance, and outstanding impact resistance.- Requires virtually no surface preparation on most substrates, simplifying application processes.- Achieves room temperature cure.- Supplied as a non-sagging gel, suitable for various dispensing methods.- Offers a good balance of strength and elongation for durable bonds.
Key Properties
- Chemical Base: Methyl Methacrylate (MMA).- Two-part adhesive system with a 10:1 mix ratio by volume.- Working Time: 4 to 6 minutes.- Fixture Time: 15 to 18 minutes, achieving approximately 75% of ultimate strength.- Color (when mixed): Blue.- Operating Temperature Range: -40°F to 250°F (-40°C to 121°C).- Gap Filling Capability: 0.03 inches to 0.375 inches (0.75 mm to 9.5 mm).- Shear Strength: 1,500-2,200 psi (10.3 – 15.2 MPa).- Tensile Strength: 1,700-2,200 psi (11.7 – 15.2 MPa).- Tensile Elongation: 80-100%.- Excellent resistance to hydrocarbons, acids and bases (pH 3-10), and salt solutions.- Susceptible to polar solvents and strong acids and bases.
Surface Compatibility
- ABS- Acrylics- Aluminum (Plexus Primer suggested for raw aluminum)- FRP (Fiber Reinforced Plastic)- Gelcoats- General Metals- Polyester (including DCPD modified)- PVC (Rigid PVC)- Stainless Steel (Plexus Primer suggested for raw stainless steel)- Carbon Steel (Plexus Primer suggested for raw steel)- Styrenics- General Thermoplastics- General Urethanes- Vinyl Esters- Coated Metals (e.g., Powder coated or E-coated Metals)
Known backups / known substitutes
- Plexus MA1020- Plexus MA2015- Plexus MA300, MA310, MA320, MA330- Plexus MA420, MA420FS, MA422, MA425- Plexus MA550- Plexus MA830, MA832- Plexus MA3940- Other methacrylate adhesives from manufacturers such as 3M, ASI, Infinity Bond, LOCTITE, LORD, SCIGRIP, and Sika.
Comparison Note
Plexus MA920 stands out in the market due to its low odor, combined with exceptional high strength, fatigue endurance, and impact resistance, marking it as a breakthrough in methacrylate adhesive technology. Its ability to bond a wide array of materials with minimal surface preparation, coupled with a balanced profile of strength and elongation, makes it a highly efficient and reliable choice for demanding structural bonding applications, often simplifying manufacturing processes.
