PLEXUS MA330
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other

Main features
- Extended 15-18 Minute Work Window
- Defined 30-45 Minute Fixture
- High-Strength 1:1 Structural Bonding
Product Description
Plexus MA330 uses a two-part, 1:1 methacrylate system for structural bonding of thermoplastics, metals, and composites. At 74 deg F (23 deg C), the non-sagging adhesive provides a 15-18 minute work time and a 30-45 minute fixture time, giving operators time for part alignment before fixture. It fills gaps from 0.75 to 3.2 mm and has an operating range of -55 to 121 deg C. Typical cured tensile strength is 24.1-31.0 MPa, with 20.7-24.1 MPa cohesive lap shear at a 0.76 mm gap.
Key features
- 15-18 Minute Work Window: Provides extended time for positioning at 74 deg F (23 deg C).
- 30-45 Minute Fixture: Develops handling strength within a defined room-temperature interval.
- 24.1-31.0 MPa Tensile Strength: Forms a high-strength cured methacrylate bond.
Applications
Applications include structural bonding of supported ABS, acrylic, FRP, gelcoat, PVC, polyesters, steel, aluminum, stainless steel, styrenics, urethanes, and vinyl esters.
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Values are typical for the separate components and processing at 74 deg F (23 deg C) where stated.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Component color - adhesive / activator | White / black | Typical uncured | |
| Mix ratio by volume | 1:1 | Adhesive to activator | |
| Component density - adhesive | 1.04 | g/cc | Typical uncured |
| Component density - activator | 0.97 | g/cc | Typical uncured |
| Component viscosity - adhesive / activator | 40,000-70,000 / 40,000-70,000 | cP | Typical uncured at room temperature |
| Work time | 15-18 | minutes | At 74 deg F (23 deg C) |
| Fixture time | 30-45 | minutes | At 74 deg F (23 deg C) |
| Shelf life - adhesive / activator | 7 / 13 | months | Recommended storage conditions |
After-processing / final-state properties
Values are typical cured properties; lap-shear results apply only to the stated substrate and test method.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Gap filling range | 0.75-3.2 | mm | Typical joint range |
| Operating temperature | -55 to 121 | deg C | Product operating range |
| Tensile strength | 24.1-31.0 | MPa | ASTM D638; cured at room temperature |
| Tensile modulus | 1,034-1,207 | MPa | ASTM D638; cured at room temperature |
| Strain to failure | 5-15 | % | ASTM D638; cured at room temperature |
| Cohesive lap shear strength | 20.7-24.1 | MPa | ASTM D1002; 0.76 mm gap |





















