PLEXUS MA550

Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses

PLEXUS MA550

Main features

  • 39-42 Minute Work Time
  • 15.4 MPa Aluminum Lap Shear
  • UV-Stable White Structural Bonding

Product Description

Plexus MA550 is a white UV-stable two-part 10:1 methacrylate structural adhesive for thermoplastic, metal and composite assemblies, including marine secondary bonding. At 23.9 deg C, typical work time is 39-42 minutes and the adhesive reaches 50 psi strength in 70-75 minutes. Gap tolerance is 0.75-10 mm. After cure, typical tensile strength is 14.9-16.4 MPa, elongation at break is 20-40%, and aluminum lap-shear strength is 15.4 MPa. The non-sagging gel is intended for structural bonding with little surface preparation on supported substrates.

Key features

  • 39-42 minute work time: Typical work time is 39-42 minutes at 23.9 deg C.
  • UV-stable white structural adhesive: The cured product is positioned for white, UV-stable structural bonding applications.
  • 15.4 MPa aluminum lap shear: Typical aluminum lap-shear strength is 15.4 MPa to ASTM D1002.

Applications

Structural bonding of thermoplastics, metals and composites; secondary bonding in marine assemblies.

Product Family

PLEXUS MA550

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TDS, SDS & Technical Documents

Technical Specifications

General Properties
Color
The color
Off-White/White
Density (g)
0.94/1.51 g/cm3
Mix Ratio
The amount of a constituent divided by the total amount of all other constituents in a mixture
10:1
Physical Properties
Viscosity (Part A)
130-160 mPa.s
Viscosity (Part B)
30-70 mPa.s
Mechanical Properties
Elongation
Elongation is the process of lengthening something. It is a percentage that measures the initial, unstressed, length compared to the length of the material right before it breaks. It is commonly referred to as Ultimate Elongation or Tensile Elongation at break.
20-40 %

Additional Information

Technical properties

As-supplied / before-processing properties

PropertyValueUnitMethod / condition
Part A viscosity130,000-160,000cPUncured adhesive
Part B viscosity30,000-70,000cPUncured activator
Part A density0.94g/mlUncured adhesive
Part B density1.51g/mlUncured activator
Mix ratio by volume10:1-Part A : Part B
Technical properties

After-processing / final-state properties

PropertyValueUnitMethod / condition
Tensile strength14.9-16.4MPaTypical cured adhesive; ASTM D638 / ISO 527
Tensile modulus386-551MPaTypical cured adhesive; ASTM D638 / ISO 527
Elongation at break20-40%Typical cured adhesive; ASTM D638 / ISO 527
Lap-shear strength15.4MPaTypical cured joint; aluminum; ASTM D1002

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