Plexus® MA830 is a high-performance, two-part methacrylate adhesive designed for structural bonding of metals without primers. It also bonds thermoplastic and composite assemblies with minimal surface preparation. Mixed at a 10:1 ratio, MA830 offers a working time of 4-6 minutes, achieving 75% of its ultimate strength in 15-20 minutes at 23°C (74°F). This adhesive combines high strength, excellent fatigue endurance, impact resistance, and superior toughness. Available in cartridges, 20-liter pails, and 200-liter drums, it dispenses as a non-sagging gel.
Key Features:
- Fast working time: 4-6 minutes
- Primerless adhesion to many metals, thermoplastics, and composites
- Exceptional strength and elongation for bonding dissimilar materials
- Excellent fatigue and impact resistance, and toughness
- Superior environmental resistance
Key Substrates:
- Raw Metals: Aluminum, Stainless Steel, Raw Steel
- Coated Metals: Powder-coated, E-coated Metals
- Thermoplastics: ABS, Acrylics, PBT, Polycarbonate, Rigid PVC, TPU
- Composites: DCPD, FRP, Gelcoat, Phenolics, Epoxy Composites, RIM
| Typical Uncured Properties | Part A | Part B |
| Color | Off-White | Grey or Grey GB |
| Mix Ratio by Volume | 10 | 1 |
| Mix Ratio by Weight | 8.86 | 1.00 |
| Component Density, g/ml | 0.97 | 1.11 |
| Component Viscosity, cP x1000 | 80 – 120 | 35 – 80 |
| VOC’s during cure, % | < 1 | |
| Shelf Life, Months | 10 | |
