Description
Plexus MA310 Methacrylate Structural Adhesive – 400ml
Plexus MA310 is a two-part methacrylate (MMA) structural adhesive designed for high-strength bonding of metals, thermoplastics and composite materials.
Positioned as a medium cure system, MA310 offers a significantly longer working time than fast-set MMA adhesives, making it ideal for larger assemblies, precise alignment, and complex bonding applications where accuracy is critical.
Its non-sag formulation allows clean application on vertical surfaces, while delivering outstanding strength, stiffness and durability once cured.
⚙️ Performance & Working Time
When mixed at a 1:1 ratio, Plexus MA310 provides:
- Working time: approx. 15–18 minutes
- Handling strength (500 psi): ~38–40 minutes
- High strength (1000 psi): ~44–50 minutes (at 23°C)
- Tensile strength: up to ~37 MPa
- Gap fill capability: 0.25mm – 3.2mm
- Non-sag gel: ideal for vertical and overhead use
This extended open time makes MA310 perfect for bonding large panels, multi-part assemblies, and detailed composite work.
✅ Key Benefits
- Medium cure structural MMA adhesive
- Extended working time for accurate positioning and assembly
- Bonds metal, plastic and composites with minimal surface prep
- High strength and stiffness for load-bearing applications
- Excellent impact, vibration and fatigue resistance
- Gap filling up to 3.2mm
- Non-sag formulation for clean application
- Replaces welding, rivets and mechanical fixings
🔩 Ideal Applications
- Large panel bonding and fabrication
- Composite assembly (GRP / fibreglass / RTM)
- Automotive and vehicle bodywork
- Trailer, bus and coach construction
- Metal to plastic bonding
- Industrial manufacturing and repair
🧲 Adhesion – Bonds Exceptionally Well To
- Aluminium, stainless steel & coated metals
- ABS, acrylics and PVC
- Polyesters and composite materials
- Fibreglass (GRP) and gelcoats
- Polyurethanes and rubber
⚠️ Surface Preparation
Plexus MA310 typically requires little to no surface preparation, however best results are achieved when surfaces are clean, dry and free from grease or contaminants. For metals, a light solvent IPA wipe or use of a cleaner such as PC120 is recommended.
💡 MA300 vs MA310 – Which Should You Use?
- MA300: Fast cure (3–6 mins) → ideal for quick production
- MA310: Longer working time (15–18 mins) → ideal for alignment & larger assemblies
👉 Need help choosing?
Read our full guide: Plexus MA300 vs MA310
