PLEXUS MA590 - 400ml 1:1 Ratio Twin Cartridge-Black

Product Name

PLEXUS MA590 - 400ml 1:1 Ratio Twin Cartridge-Black

Brief Description

Plexus MA590 is a two-part, black methacrylate adhesive designed for high-strength structural bonding of various materials, including thermoplastics, metals, and composite assemblies. It features a long working time, excellent fatigue endurance, outstanding impact resistance, and superior toughness, making it suitable for demanding applications with large bond lines.

Popular Applications & Uses

- Bonding stringers and liners into large fiberglass boats.- Structural bonding of thermoplastic, metal, and composite assemblies.- Applications requiring a very long open time and high gap-filling capabilities.- Specialty vehicles and sheet metal enclosures.- Metal bonding, including aluminum and stainless steel (with primer).- Composite structures and windblade manufacturing.

Industries that Commonly Use It

- Marine- Transportation/ Specialty Vehicle- General Manufacturing- Metal Fabrication- Plastic Fabrication- Fabrication- Construction/ Building Services (e.g., architectural cladding)- Energy (e.g., windblade industry)- Aerospace/Defense (for structural adhesive applications)

Special and Unique Features

- Extra-long working time of 90 to 105 minutes, ideal for large structures.- High gap-filling capability, up to 1.5 inches (38 mm).- Excellent fatigue endurance, outstanding impact resistance, and superior toughness.- Non-sagging gel consistency when dispensed.- Room temperature cure.- 100% reactive formulation.

Key Properties

- **Product Type:** Two-part methacrylate adhesive- **Mix Ratio:** 1:1 by volume- **Working Time:** 90 to 105 minutes- **Fixture Time:** 4 to 6 hours (250 to 380 minutes), or 180 to 240 minutes to achieve 75% ultimate strength- **Color (Mixed):** Gray, though the cartridge is black- **Shear Strength:** 1,500-2,500 psi (10.3 – 17.2 MPa)- **Tensile Strength:** 2,000-2,500 psi (13.8 – 17.2 MPa)- **Tensile Elongation:** >130%- **Operating Temperature:** -40°F to 180°F (-40°C to 82°C)- **Chemical Resistance:** Excellent resistance to hydrocarbons, acids and bases (pH 3-10), and salt solutions.- **Flammability:** Flammable (contains methacrylate esters).

Surface Compatibility

- ABS- Acrylics- FRP (Fiber Reinforced Plastic)- Gelcoats- Metals (e.g., Aluminum*, Stainless Steel*, Raw Steel*, Carbon Steel*) (*Plexus Primer suggested for some metals)- Polyester (including DCPD modified)- PVC- Styrenics- Thermoplastics- Urethane (general)- Vinyl Esters

Known backups / known substitutes

- Other Plexus methacrylate adhesives with varying working times and properties, such as MA560-1 (shorter working time, high gap fill), MA1020 (low odor, fast cure), MA830 (primer-free metal bonding), MA422 (structural bonding), MA425 (long open time, marine).- General methacrylate adhesives from brands like 3M, ASI MMA, LOCTITE, LORD, SCIGRIP, Sika.- Epoxy and polyurethane structural adhesives for similar applications.

Comparison Note

Plexus MA590 stands out among structural adhesives due to its exceptionally long working time (90-105 minutes) and significant gap-filling capability (up to 1.5 inches), making it particularly well-suited for large-scale assemblies and applications where extended positioning and adjustment are required, such as in marine construction. While other Plexus products offer faster cure times or specialized properties, MA590's extended open time is its defining characteristic for complex, large-format bonding tasks.