Product Introduction
Plexus® MA8120/GB is a two-part methacrylate structural adhesive designed for direct-to-metal bonding of metals, plastics, and composites. With no surface preparation required, it offers exceptional strength, toughness, and fatigue resistance, making it ideal for automotive, industrial, and marine applications. MA8120/GB bonds galvanized and zinc-treated steels effectively, ensuring durability in demanding environments.
MA8120/GB Features
- Primerless adhesion to metals (including hot-dipped galvanized)
- Exceptional strength and elongation for bonding dissimilar materials
- Excellent fatigue resistance, impact resistance, and toughness
- Easy 1:1 mixing ratio
- Lower odor formula
- Excellent environmental resistance
MA8120/GB Applications
- Raw metals (Aluminum, Stainless Steel, Raw Steel)
- Coated metals (Hot Dipped Galvanized, Electrogalvanized, Powdercoated, or E-coated Metals)
- Thermoplastics (ABS/ABS Blends, Acrylics, Polyamides, Nylons, PBT, Polycarbonate)
- Composites (DCPD, FRP, Gelcoat, Phenolics, Epoxy Based Composites, RIM)
About Prostech
Prostech Philippines is a one-stop solution provider for specialty materials and equipment across electronics manufacturing, from PCBA to final assembly. Our core material and equipment solutions include:
- PCB Assembly Materials
- Cleaning & Degreaser
- Circuit Board Protection
- Thermal Management Solutions
- EMI Shielding
- General Assembly Adhesives
- Elastomeric Materials
- Process Equipment: Potting & Coating Systems, UV/ Heat Curing, Plasma Treatment, Tape placement automation, and cleaning machines
Technical Added Value to customer
Prostech offers customized material and process equipment solutions with engineering support throughout R&D, production process optimization, and performance validation. Our in-house lab located in Alabang, Muntinlupa is equipped to conduct electronics material testing, application simulation, and adhesive validation, helping customers reduce the need for onsite trials and accelerate implementation.
International Supply Chain Advantage
Regional warehouse hubs across Vietnam, Singapore, Malaysia, and the Philippines ensure cross-border reliable supply. In Philippines PEZA-bonded warehouse located at Lima Industrial Park, Batangas enables Prostech to provide responsive, demand-based delivery and significantly shortens standard lead time for Philippines customers.
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| Typical Uncured Properties | Part A | Part B |
| Color | Off-White | Grey |
| Mix Ratio by Volume | 1 | 1 |
| Mix Ratio by Weight | 1.01 | 1.00 |
| Component Density, g/ml | 0.97 | 0.96 |
| Component Viscosity, cP x1000 | 40 - 80 | 80 - 120 |
| VOC's during cure, % | < 0.5 | |
| Shelf Life, Months | 12 | |



