Plexus® MA420W is a two-part methacrylate adhesive designed for structural bonding of thermoplastic, metal, and composite assemblies. Combined at a 10:1 ratio, MA420W is a rapid-curing system intended to provide a faster fixture time over similar products. MA420W is ideal for composite bonding applications in the transportation industry because it requires virtually no surface preparation. In addition, this product provides a unique combination of excellent fatigue endurance, outstanding impact resistance, and superior toughness. Plexus MA420W will be available in blue and is supplied in a ready-touse cartridge, 5-gallon (20-liter) pails, or 50-gallon (200-liter) drums to be dispensed as a non-sagging gel.
Key Features
- Short working time of 4 – 6 mins
- Fast, consistent strength development at room temperature
- Highly toughened formula for the toughest environments
- Exceptional strength, elongation and fatigue resistance
- Non-sag thixotropic dispensing
| Typical Uncured Properties | Part A | Part B |
| Color | Off-White | Blue/Black |
| Mix Ratio by Volume | 10 | 1 |
| Mix Ratio by Weight | 8.80 | 1.00 |
| Component Density, g/ml | 0.94 | 1.05/1.07 |
| Component Viscosity, cP x1000 | 80 – 100 | 50 – 80 |
| VOC’s during cure, % | < 2 | |
| Shelf Life, Months | 10 or 7 in Black | |
