Plexus® AO/MA420 is a two-part methacrylate adhesive designed for structural bonding of thermoplastic, metal, and composite assemblies. Combined at a 10:1 ratio, AO420 is a rapid-curing system. Plexus AO420 is the standard choice 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 AO420 is available in amber, blue, or black colors and is supplied in a ready-to-use 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
Key Substrates
- Thermoplastics ABS/ ABS Blends, Acrylics, PBT, Polycarbonate, Rigid PVC, TPUs
- Composites DCPD, FRP, Gelcoat, Phenolics, Epoxy Based Composites, RIM
- Coated metals Powder coated or E-coated Metals
- Raw metals with PC120 Aluminum, Stainless Steel, Raw Steel, etc.
Typical Uncured Properties | Part A | Part B |
Color | Off White | Off Wht,Blue, Blk |
Mix Ratio by Volume | 10 | 1.0 |
Mix Ratio by Weight | 9.00 | 1.00 |
Component Density, g/ml | 0.97 | 1.05 |
Component Viscosity, cP x1000 | 100 – 125 | 35 – 80 |
VOC’s during cure, % | < 2 | |
Shelf Life, Months | 10 or 7 in Black |