Plexus® MA3940LH is a new generation of fast-setting two-part methacrylate adhesives specifically designed for the structural assembly of advanced automotive components. Combined at a 10:1 ratio, it has a working time of 3 to 6 minutes and achieves 75% of ultimate strength in 8 to 10 minutes. After mixing, Plexus MA3940LH cures rapidly to form a tough, elastomeric bond with superb shear, peel, fatigue, and impact strength over a wide temperature range. In addition, this product has superior toughness at temperatures below -17°C. Plexus MA3940LH is off-white and 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
- Fast working time 4 – 5 mins and fast fixture (8 – 10 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.
Typical Uncured Properties | Part A | Part B |
Color | Off-White | Off-White |
Mix Ratio by Volume | 10 | 1 |
Mix Ratio by Weight | 8.90 | 1.00 |
Component Density, g/ml | 0.94 | 1.04 |
Component Viscosity, cP x1000 | 120 – 160 | 35 – 70 |
VOC’s during cure, % | < 1 | |
Shelf Life, Months | 13 |