Applications

Plexus® MA8110

Brand: Plexus®

Package Sizes:

Cartridges:

  • 50 mL Cartridge
  • 400 mL Cartridge

Bulk Containers:

  • 5-Gallon (20 L) Pails
  • 50-Gallon (200 L) Drums

Shelf Life: 12 months

Product Description:

Plexus® MA8110 is a direct-to-metal, low-halogen, two-part methacrylate structural adhesive designed for bonding various metals, engineered thermoplastics, and composite assemblies. It works well on galvanized and zinc-treated steel with little to no surface preparation.

With a 1:1 mix ratio, MA8110 has a working time of 8 – 12 minutes at 75°F (23.9°C) and achieves 500 psi in 35 – 40 minutes and 1000 psi in 44 – 50 minutes at 75°F (23.9°C).

The adhesive provides high strength, toughness, and fatigue resistance, along with superior thin-film curing properties. It contains 0.012-inch (0.3 mm) inert glass beads to control bondline thickness and is available with or without glass-bead spacers.

Key Features:

Primerless Adhesion to Metals: Bonds aluminum, galvanized steel, stainless steel, and more without the need for primers.
Superior Thin-Film Cure: Ensures strong bonding even with thin adhesive layers.
High Strength & Toughness: Provides excellent impact resistance and durability.
Low Halogen Content: Meets environmental and safety regulations.
Good Fatigue & Corrosion Resistance: Ideal for transportation, marine, and industrial applications​.

Recommended Applications:

🔹 Transportation: Structural bonding in automotive, rail, and aerospace industries.
🔹 Industrial Manufacturing: Bonding metal and plastic components in heavy machinery and appliances.
🔹 Marine Applications: Used in boat and ship construction for bonding composite and metal components​.

Typical Uncured Physical Properties:

Property Part A (Adhesive) Part B (Activator)
Color Off-White Gray
Viscosity (cP x1000) 40 – 80 40 – 80
Density (g/mL) 0.97 0.96
Mix Ratio (by volume) 1:1
Mix Ratio (by weight) 1.01:1
VOC Content <0.5%

Typical Cured Physical Properties:

Property Value
Color Gray
Shore D Hardness 74
Elongation at Break 25 – 45%
Tensile Strength (ASTM D638) 3,285 – 4,015 psi (22.7 – 27.2 MPa)
Tensile Modulus 170 – 230 kpsi (1,172 – 1,586 MPa)
Gap Tolerance 0.01 – 0.5 in (0.25 – 12.7 mm)

Performance Characteristics:

Overlap Shear Strength (ASTM D1002, Typical Values)

Substrate Lap Shear Strength (psi/MPa) Failure Mode
Aluminum 6061 3,061 psi (21.1 MPa) Cohesive Failure (CF)
Galvanized Steel 2,215 psi (15.3 MPa) Substrate Failure (SF)
Stainless Steel 2,800 psi (19.3 MPa) Cohesive Failure (CF)
Cold Rolled Steel 2,800 psi (19.3 MPa) Cohesive Failure (CF)
FRP 700 psi (4.8 MPa) Substrate Failure (SF)
ABS (Sheet) 700 psi (4.8 MPa) Substrate Failure (SF)
PVC 650 psi (4.5 MPa) Substrate Failure (SF)
Gel Coat 568 psi (3.9 MPa) Substrate Failure (SF)

Cure Profile at Different Temperatures:

Temperature Work Time Time to 50 psi Time to 500 psi Time to 1000 psi
60°F (15.6°C) 12 – 14 min 38 – 44 min 45 – 55 min 65 – 85 min
75°F (23.9°C) 8 – 12 min 33 – 36 min 35 – 40 min 44 – 50 min
90°F (32.2°C) 6 – 8 min 25 – 30 min 30 – 35 min 35 – 40 min

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