Plexus MA 425 adhesive & activator, 380 ml cartridge incl. mixing nozzle

All-purpose adhesive with long processing time, Core-Shell-Technology, including 1 mixing tube

Plexus® MA425 is a two-part methacrylate adhesive designed for structural bonding of thermoplastic, metal, and composite assemblies. Combined at a 10:1 ratio, MA425 has a working time of 28 to 30 minutes and achieves approximately 75% of ultimate strength in 80 to 90 minutes at 74°F (23°C). Plexus MA425 is finding wide usage for composite bonding applications in the transportation and marine industries 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 MA425 is blue when mixed 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.

Application
Surface Preparation - Plexus typically requires little or no surface preparation, but is dependent on the material and degree of contamination on the bonding area. For optimal performance, ITW PP recommends surfaces to be free of grease, dirt, and other contaminants.

• Plastics and coated metals - wipe with a dry rag or a light solvent may be sufficient.
• Raw metal - wipe with a dry rag or a light solvent may be sufficient.
• Metals may be affected by the degree of oxidation, scaling, fluids or other contaminants.
• Composites - dust free surfaces can be bonded as is or may require light abrasion to remove mold releases, or to increase the surface area.

Other surfaces should have the same considerations. ITW PP recommends customers test to determine the optimal preparation for their materials to ensure suitability.