H.B. Fuller MP55320

H.B. Fuller MP55320 is a high-performance, two-part methacrylate adhesive engineered to bond a wide range of plastics, metals, and composite assemblies. It offers outstanding bond strength, is extremely durable, and has excellent impact and weathering properties. H.B. Fuller MP55320 greatly increases the reliability of finished assemblies with its exceptional flexibility, ability to withstand extreme temperature fluctuations and thermal cycling, and resistance to a wide range of chemicals and environmental conditions.

Chemical Family: Acrylics & Acrylates, Methacrylates

Product Type: 2K (2 component) Adhesive, Structural Adhesive

Application Area: HVAC Applications

Compatible Substrates & Surfaces: Acrylic, Acrylonitrile Butadiene Styrene (ABS), Aluminum, Composites, Metal, Nylon, Plastics, Polycarbonate (PC), Polyvinyl Chloride (PVC), Stainless Steel, Steel, Vinyl

Features: Chemical Resistant, Durable, Excellent Flexibility, Excellent Substrate Adhesion, Good Bonding Strength, Good Weather Fastness, High Flexibility, High Impact Resistance, High Performance, Thermal Cycle Resistance

Technical Data Sheet
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Identification & Functionality

Features & Benefits

Applications & Uses

Application Area
General Instructions
  • The product is best used at temperatures between 65°F and 80°F. Temperatures below 65°F will slow the cure speed of the material and viscosities will be higher. Temperatures above 80°F will cause the material to cure faster and viscosities will be lower.
  • For consistent dispensing maintain temperature in the above mentioned range. For optimum bond strength and to insure maximum performance in the finished assembly mate parts together within the specified work time of the adhesive.
  • Make sure the bond joint has uniform coverage and that a sufficient amount of adhesive is in the bond area. It is important to have the adhesive applied, parts aligned and positioned, within the established work times for the product. To ensure maximum performance in the finished assembly parts should remain undisturbed until the fixture time is reached.
Typical Applications

Metals

  • Aluminum
  • Steel
  • Stainless
  • E-Coated Metal

Thermosets

  • Fiberglass
  • Phenolic
  • Gel Coat
  • Epoxy
  • RIM Urethane
  • Polyurethane
  • Liquid Molding Resin

Thermoplastics

  • Acrylic
  • ABS
  • Polycarbonate
  • Nylon/PA
  • PPO
  • Vinyl
  • PVC
  • Styrene
  • Peek
  • PBT Blends
  • PET Blends

Properties

Physical Form
Appearance
Off white or amber viscous liquid
Typical Properties
ValueUnitsTest Method / Conditions
Mixed Density0.95g/cc-
Volume Mix Ratio10:1--
Weight Mix Ratio10:1--
Cured Properties
ValueUnitsTest Method / Conditions
Gap Fill Dimension0.25inch-
Hardness45.0-ASTM D2240
Tensile Strength15 - 30MPaASTM D638
Over Lap Shear Strength (Carbon steel, at 50% RH)19 - 24MPaASTM D1002
Over Lap Shear Strength (Aluminum, at 50% RH)3700.0psiASTM D1002
Thermal Service Range- 67 - 250°F-
Uncured Properties
ValueUnitsTest Method / Conditions
Flash Point51.0°F-
Open Time8 - 14min-
Fixture Time20 - 30min-
Cure TemperatureRoom temperature--
Cure Time24.0h-
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity (Resin, 20 rpm)130000.0cPBrookfield RV7
Viscosity (Activator, 20rpm)50000.0cPBrookfield RV7
Thixotropic Index (20/2 rpm)5.0-Brookfield RV7

Packaging & Availability

Packaging Type
Regional Availability
  • Latin America
  • North America
Typical Packaging
  • pail: 50 ml, 400 ml
  • drum kits

Storage & Handling

Storage Conditions
  • The product should be stored in a cool, dry place out of direct sunlight.
  • The shelf life of MP55300 is one year from date of manufacture.
  • Shelf life is based on the products being stored properly at temperatures between 55°F and 75°F.
  • Exposure to temperatures above 75°F will reduce the shelf life.
  • This product should never be frozen.
Handling and Clean-Up
  • Clean up is best before the adhesive has cured.
  • Cleaners containing NMP (N-methyl pyrolidone) or Citrus terpene provide the best results.
  • On cured adhesive repeat use may be required.