Introduction of Plexus MA3940LH Two-part Methacrylate Adhesives
Plexus MA3940LH Two-part Methacrylate Adhesives 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.
About Prostech
Prostech offers specialty materials (adhesives, tapes, thermal interface materials, insulating materials, sealants, PCB protection materials, …) along with manufacturing solutions. We proudly serve a wide range of industries and are an authorized distributor for leading global manufacturers of industrial materials and equipment. Our product range is designed to deliver customized solutions that address each customer’s unique needs.
With years of experience and a successful project history, we are confident in our ability to provide comprehensive material solutions. These solutions effectively tackle the challenges manufacturers face. To explore our full product catalog, simply click here. Our dedicated team is ready to assist with:
- Provide quotation, sample, TDS/MSDS, and technical consultation
- Testing sample quality and verifying product compatibility in our laboratory
- Customizing material formulas for special applications
- Adapting product sizes, quantities, and packaging to meet specific needs
- Offering expert advice on suitable equipment and automation processes
- Delivering technical training and on-site support for optimal product use
Moreover, Prostech ensures the safe and accurate global delivery of all materials, including “dangerous goods”, in compliance with legal regulations. For personalized technical support or to receive a quotation, please contact us today.
| 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 | |



