Plexus MA530 (53000 Gray) Non-Sag Gel, 30-Minute MMA Adhesive for Metals & Composites

Product Name

- Plexus MA530 (53000 Gray) Non-Sag Gel, 30-Minute MMA Adhesive for Metals & Composites

Brief Description

- Plexus MA530 is a two-part, gray, non-sag methacrylate adhesive designed for high-strength structural bonding of thermoplastic, metal, and composite assemblies. It offers a moderate open time, excellent fatigue endurance, outstanding impact resistance, and superior toughness, curing at room temperature.

Popular Applications & Uses

- Structural bonding of small to large composite and metal structures.- Installing composite stringers in the marine industry.- Bonding floors, interior panels, dividers, modular interior furnishings, roof assemblies, and underfloor supports in rail wagons.- Bonding composite body panels, front and rear light assemblies, grilles, and end-caps in buses and trucks.- Automotive components, marine assemblies, appliances, metal assemblies, plastic fabrications, and composite assemblies.- Replacing mechanical fasteners in many applications.- Bonding magnets in loudspeakers and electric motors.- Bonding panels of aluminum to other panels for trucks and construction equipment.- Composite bonding of truck trailer beds and composite parts like fenders and sliding roofs.

Industries that Commonly Use It

- Aerospace/Defense- Automotive Service/Repair- Fabrication- General Manufacturing- Marine- Metal Fabrication- Plastic Fabrication- Transportation/ Specialty Vehicle

Special and Unique Features

- Non-sag gel consistency.- 30-40 minute working time, suitable for large structures.- Excellent gap filling capabilities (0.03 in. – 0.70 in. or 0.75 mm – 18 mm).- Easy to use 1:1 mix ratio by volume and weight.- High strength and very high elongation (90-160%).- Excellent fatigue endurance, outstanding impact resistance, and superior toughness.- Room temperature cure.- UV stable (for the gray version) and provides excellent chemical and water resistance.- Minimal or no surface preparation required for many substrates.

Key Properties

- Chemistry: Two-part Methyl Methacrylate (MMA) adhesive.- Color: Gray when mixed (53000 Gray).- Mix Ratio: 1:1 by volume and weight.- Working Time: 30-40 minutes.- Fixture Time: 90-160 minutes (to 1000 psi) or 45 minutes (to 75% strength).- Operating Temperature: -40°F to 180°F (-40°C to 82°C)- Gap Filling: 0.03 in. – 0.70 in. (0.75 mm – 18 mm).- Tensile Strength: 2,500 – 3,500 psi (17.2 – 24.1 MPa).- Lap Shear Strength: 1,700 – 2,500 psi (11.7 – 17.2 MPa).- Elongation at Break: 90 - 160%.- Hardness: Shore D 70.- Chemical Resistance: Excellent resistance to acids and bases (pH 3-10) and salt solutions. Susceptible to polar solvents and strong acids and bases.

Surface Compatibility

- Thermoplastics- Metals (e.g., Aluminum, Stainless Steel, Raw Steel)- Composites (e.g., FRP, Gelcoats, Polyesters, Vinyl Esters, Carbon Fiber, Fiberglass, SMC, Epoxy)- ABS- Acrylics (PMMA)- PVC- Styrenics- Urethanes (general)

Known backups / known substitutes

- Maven MMA530, Maven MMA560, Maven MMA590- Araldite 2023- SikaFast 3551- Infinity Bond MMA 530- SciGrip (e.g., SG 300-40)- Other Plexus MMA adhesives like MA8110, MA2230, MA425, MA832, MA920, MA205HV.

Comparison Note

- Plexus MA530 is a premium, high-performance MMA adhesive known for its robust structural bonding capabilities, especially for large assemblies requiring a moderate open time. While alternatives like SikaFast 3551 and Infinity Bond MMA 530 offer similar performance or cost-effectiveness, Plexus MA530 is a trusted brand with certified low chemical emissions and a proven track record in demanding industrial applications.