Applications

Plexus® MA1025

Brand: Plexus®

Package Sizes:

  • Cartridges:
    • 380 mL Cartridge
  • Bulk Containers:
    • 5-Gallon (20 L) Pails
    • 50-Gallon (200 L) Drums

Shelf Life:

  •  Adhesive (A Side ): 13 months
  • Activator (B Side ): 13 months

Room Temperature Cure

Property Value
Working Time 20 – 25 minutes
Fixture Time 40 – 45 minutes
Operating Temperature -40°F to 180°F (-40°C to 82°C)
Gap Filling 0.08 in – 1.00 in (2 mm – 25 mm)
Mixed Density 8.14 lbs/gal (0.98 g/cc)
Flash Point 51°F (11°C)

Chemical Resistance

Excellent Resistance To: Susceptible To:
Hydrocarbons Polar Solvents
Acids and Bases (pH 3-10) Strong Acids and Bases
Salt Solutions

Typical Physical Properties (Uncured) – Room Temperature

Property Adhesive Activator
Viscosity, cP 180,000 – 220,000 35,000 – 70,000
Color Off-White Blue
Density, lbs/gal (g/cc) 8.06 (0.97) 8.9 (1.07)
Mix Ratio by Volume 10.0 1.0
Mix Ratio by Weight 9.0 1.0
Mixer Recommendation Cartridge (380 mL): Sulzer MFQX 10-24T square mixer Bulk: Refer to ITW PANA

Typical Mechanical Properties (Cured) – Room Temperature

Test Method Property Value
ASTM D638 (Tensile) Strength 1,400 – 1,800 psi (9.7 – 12.4 MPa)
Modulus 60,000 – 80,000 psi (414 – 552 MPa)
Strain to Failure 90 – 110%
ASTM D1002 (Lap Shear) Cohesive Strength 1,200 – 2,000 psi (8.3 – 13.8 MPa)

Product Description

Plexus® MA1025 is a two-part methacrylate adhesive designed for structural bonding of thermoplastics, metals, and composite assemblies. It is formulated with a 10:1 mix ratio, a working time of 18 to 22 minutes, and reaches 75% of ultimate strength in 50 to 55 minutes at 74°F (23°C).

This adhesive is a breakthrough in methacrylate adhesive technology, offering very low cure shrinkage and very low odor while maintaining high strength, excellent fatigue endurance, and superior toughness.

MA1025 is blue when mixed and is supplied in ready-to-use cartridges, pails, or drums. It dispenses as a non-sagging gel.


Key Features

  • Low Odor Formula: Ideal for sensitive working environments.
  • Minimal Shrinkage: Ensures high precision and reduced bond-line movement.
  • High Strength & Toughness: Provides high cohesive strength and durability.
  • Minimal Surface Preparation: Bonds many materials without extensive surface prep.
  • Excellent Impact & Fatigue Resistance: Durable under dynamic loads.
  • Moderate Work Time: Provides 18-22 minutes of work life.

Recommended Applications

  • Transportation: Bonding composite and metal components in automotive, marine, and aerospace.
  • Construction: Structural bonding of composite and thermoplastic panels.
  • Industrial Equipment: Bonding metals and plastics in general manufacturing.
  • Sporting Goods: Used in assembly of lightweight and impact-resistant components.

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