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Plexus® MA420W Two-part Methacrylate Adhesive

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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 PropertiesPart APart B
ColorOff-WhiteBlue/Black
Mix Ratio by Volume101
Mix Ratio by Weight8.801.00
Component Density, g/ml0.941.05/1.07
Component Viscosity, cP x100080 – 10050 – 80
VOC’s during cure, %< 2
Shelf Life, Months10 or 7 in Black

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