Description
Description
Plexus MA420 (also known as AO420) is a two-part methacrylate adhesive designed for structural bonding of thermo plastic, metal and composite assemblies. Combined at a 10:1 ratio is a rapid curing system and is the standard choice for composite bonding applications in the transportation industry because it requires no surface preparation.
Plexus changed the name of this popular formula, and it is now called AO420. But many customers still know it as MA420.
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 (Surfaces)
- Thermoplastics- ABS/ABS Blends, Acrylics, PBT, Polycarbonate, Rigid PVC, TPUs
- Composites DCPD, FRP Gelcoat, Phenolics, Epoxy based composites, RIM
- Raw Metals with PC120- Aluminum, Stainless Steel, Raw Steel, etc.
- Coated Metals- Powder Coated or E-coated metals
Properties
- Color: Cream, Blue, or Black
- Mix Ratio: 10:1
- Shear Strength: 3,000-3,800 psi (20.7 26.2 MPa)
- Adhesive: A: 100,000-125,000 cP
- Activator: B: 35,000-80,000 cP
- Working Time Min: 4 minutes
- Working Time Max: 6 minutes
- Fixture Time Min: 18 minutes
- Fixture Time Max: 22 minutes
- Tensile Strength Min: 2,700 psi (18.6 MPa)
- Tensile Strength Max: 3,000 psi (20.7 MPa)
- Tensile Elongation Min: 30 %
- Tensile Elongation Max: 50 %
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