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.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Other Properties
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 |





















