ITW Plexus MA310 Off-White Methacrylate Adhesive – 50 mL, 12/Case for Composite Bonding
ITW Plexus MA310 is a high-performance, two-part structural methacrylate adhesive from Plexus, the leading brand in composite and fiberglass structural bonding applications. MA310 provides exceptionally strong, impact-resistant bonds on composites, fiberglass, plastics, and metals — often without the aggressive solvent surface preparation required by epoxy adhesives — enabling simpler, faster bonding processes in aerospace, marine, and automotive composite assembly.
The 12-case format of 50 mL twin cartridges provides a production-ready bulk supply of MA310, with each individual cartridge sized for controlled, pre-metered dispensing through a static mixer nozzle for consistent ratio and thorough mixing on every application. The 12-case minimizes reordering frequency and provides cost savings over individual cartridge purchasing for operations with sustained composite bonding needs.
Plexus methacrylate adhesives are the industry standard for structural bonding of composites in applications where the flexibility and impact resistance of the cured bond are as important as the static bond strength — such as boat hull bonding, aerospace composite panel bonding, and vehicle structural assembly subject to dynamic loading.
| Attribute | Detail |
|---|---|
| Manufacturer Part Number (MPN) | 31500 |
| Brand | ITW Plexus |
| Product Name | Plexus MA310 |
| Color | Off-White |
| Product Type | Two-Part Structural Methacrylate Adhesive |
| Package Size | 50 mL Twin Cartridge |
| Case Quantity | 12 Cartridges per Case |
| Mix Ratio | 1:1 |
| Substrate Compatibility | Composites, Fiberglass, Plastic, Metal |
| Application Method | Dual Cartridge Dispenser with Static Mixer |
| Industry Use | Aerospace, Marine, Automotive, Industrial |
Technical Information
Plexus MA310 is based on a reactive methacrylate (methyl methacrylate / MMA) chemistry that polymerizes through a redox-initiated free-radical mechanism when the base and activator components are mixed. This chemistry provides several advantages over epoxy systems for composite bonding: faster strength build-up at room temperature, better adhesion to low-surface-energy plastics without primers, higher toughness and impact resistance in the cured film, and reliable bonding to many substrates without solvent cleaning or abrasion.
The cured MA310 methacrylate bond provides a tough, flexible joint that absorbs impact energy and resists crack propagation under dynamic loading — the primary failure mode for brittle epoxy bonds on composite structures subject to impact and vibration. This fracture toughness advantage makes Plexus MA310 the preferred structural adhesive for marine and aerospace composite bonding applications where impact resistance is a critical design requirement.
The 1:1 mix ratio of MA310 simplifies dispensing — equal volumes of base and activator produce the correctly formulated mixed adhesive through the static mixer. Ensure the static mixer is primed by discarding the first small amount dispensed before applying adhesive to the bonding surfaces to guarantee correct ratio in the applied material.
Why Choose ITW Plexus MA310?
- ✅ Composite Bonding Specialist — Plexus is the leading composite structural adhesive brand
- ✅ Minimal Surface Prep — Often no solvent cleaning or abrasion required
- ✅ High Impact Resistance — Tough, flexible cure for dynamic loading
- ✅ 12-Case Economy — Cost-efficient for production composite bonding
- ✅ 1:1 Simple Ratio — Easy equal-volume dispensing
Applications
Plexus MA310 is used for aerospace composite panel bonding, marine hull bonding, automotive body panel assembly, fiberglass component bonding, and general structural bonding of composites and plastics in production and MRO environments.
Frequently Asked Questions
Q: What is ITW Plexus MA310 used for?
A: MA310 is a structural methacrylate adhesive for high-strength bonding of composites, fiberglass, plastics, and metals in aerospace, marine, and automotive applications requiring tough, impact-resistant structural bonds.
Q: What is the MPN for Plexus MA310 50mL 12-case?
A: MPN is 31500.
Q: Does Plexus MA310 require surface preparation?
A: MA310 often provides good adhesion to composites and plastics without aggressive solvent cleaning or abrasion, simplifying the bonding process compared to epoxy adhesives. Refer to the Plexus MA310 TDS for substrate-specific surface preparation guidance.
Q: What is the mix ratio for MA310?
A: MA310 uses a 1:1 mix ratio by volume. The twin cartridge dispenser with static mixer automatically delivers equal volumes of base and activator when used correctly.
Q: How many cartridges are in a case of MA310?
A: 12 cartridges of 50 mL Plexus MA310 per case. MPN: 31500.
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