Product Description
Plexus® MA820 is a high-performance, two-component acrylic adhesive designed for structural bonding of thermoplastics, metals, and composites. With a 10:1 mixing ratio and fast-curing properties, it offers exceptional fatigue resistance, impact resistance, and high toughness. Ideal for applications in the transportation industry, Plexus® MA820 requires minimal surface preparation, making it a cost-effective and efficient solution for bonding composites. Available in amber, blue, and black, this adhesive is non-sagging and comes in 380ml cartridges, 5-gallon buckets, and 50-gallon drums.
Features of Plexus® MA820
- Two-component methyl methacrylate adhesive formulated for industrial metal bonding.
- Superior bonding properties for various metal materials.
- Enhanced compatibility with difficult-to-bond metals such as magnesium and zinc alloys.
- Fast curing with a short initial solidification time, improving production efficiency.
- Electrophoresis process compatibility, making it ideal for automotive and industrial applications.
Applications of Plexus® MA820
- Structural bonding in the transportation industry (automotive, marine, and aerospace).
- Bonding of composite materials and thermoplastics in industrial applications.
- Metal assembly requiring high-impact resistance and durability.
- Manufacturing and repair of equipment where fatigue resistance is critical.
- Electrophoresis and coatings processes requiring strong adhesive compatibility.
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: 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.About Prostech
Material Specifications
| Property | Details |
|---|---|
| Operating Time | 4 – 6 minutes |
| Fixture Time | 16 – 20 minutes |
| Service Temperature | -67°F to 250°F (-55°C to 121°C) |
| Gap Fill, in. (mm) | 0.03 – 0.375 (0.75 – 9.5) |
| Mixed Density | 8.10 lbs/gal (0.97 g/cc) |
| Mixed Viscosity | 51°F (11°C) |
Chemical Resistance
| Resistant To | Not Resistant To |
|---|---|
| Acids | Strong Oxidizers |
| Bases (pH 3-10) | Organic Solvents |
| Salt Solutions |
Physical Properties (Uncured)
| Property | Base | Hardener |
|---|---|---|
| Viscosity, cP (x 1000) | 100 – 125 | 50 – 70 |
| Color | Off-white | Blue |
| Density, lb/gal (g/cc) | 8.09 (0.96) | 8.93 (1.07) |
| Mixing Ratio | 10.0 | 1.0 |
| Weight Ratio | 8.9 | 1.0 |
| Cartridge (Volume) | 380ml | 10-24 Mixing Nozzle |
Mechanical Properties (Cured)
| Test | Value |
|---|---|
| Tensile Strength (ASTM D638) | 2,500 – 2,800 psi (17.0 – 19.0 MPa) |
| Modulus (ASTM D638) | 75,000 – 100,000 psi (517.0 – 689.0 MPa) |
| Elongation at Break (%) | 90 – 110 |
| Lap Shear Strength (ASTM D1002) | 1,950 – 2,100 psi (13.2 – 14.3 MPa) (Rubber thickness 0.75 mm) |
Recommended Substrates
| Plastics | Metals | Other Materials |
|---|---|---|
| ABS | Aluminum | Polyethylene |
| Polycarbonate | Steel (Including modified DCPD) | Epoxy Resins |
| FRP | Stainless Steel | Polyurethane Resins |
| Acrylic | ||
| Carbon Fiber* | (*Must use Plexus Primer for bonding.) |
VOC Content & Shelf Life
| VOC’s (% g/L) | <2 (<20) |
|---|---|
| Material | Shelf Life (Months) |
| Base | 13 |
| Hardener | 10 |
| Mixed Material | 7 |
| After Dispensing | 7 |
