Plexus® MA3940 Two-part Methacrylate Adhesive

Plexus® MA3940 is a two-part methacrylate adhesive designed for structural bonding of thermoplastic, metal, and composite assemblies. Combined at a 10:1 ratio, MA3940 has a working time of 12 to 15 minutes and achieves approximately 75% of ultimate strength in 25 to 30 minutes at 74°F (23°C). Plexus MA3940 is the standard for applications requiring an adhesive to bond substrates sensitive to chemical crazing such as acrylic or polycarbonate. In addition, this product provides a unique combination of excellent fatigue endurance, outstanding impact resistance, and superior toughness. Plexus MA3940 is supplied in 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
Medium working time 12 – 15 mins
Exceptional low temperature impact resistance
Fast, consistent strength development at room temperature
High elongation and excellent stress distribution
Low modulus and non-crazing
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.