H.B. Fuller MP58420

H.B. Fuller MP58420 is a two-part methacrylated acrylic hybrid adhesive designed for non-flammable, low-odor applications. It bonds plastics, metals, and composites, providing strong durability, impact resistance, flexibility, and weathering properties across temperature fluctuations and chemical exposure.

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

Compatible Substrates & Surfaces: Acrylic, Acrylonitrile Butadiene Styrene (ABS), Aluminum, Composites, E-Coated Surfaces, Engineering Plastics, Epoxies, Fiberglass, Gelcoat, Metal, Phenolics, Plastics, Plated Steel, Poly(p-Phenylene Oxide) (PPO), Polyamide, Polybutylene Terephthalate (PBT), Polycarbonate (PC), Polyether Ether Ketone (PEEK), Polyethylene Terephthalate (PET), Polyurethane, Polyvinyl Chloride (PVC), RIM Urethane, Stainless Steel, Steel, Styrenics, Thermoplastics, Thermosetting Plastics, Vinyl

Application Method: Dispensing Equipment

Chemical Family: Acrylics, Acrylates & Methacrylates

Features: Chemical Resistant, Excellent Thermal Cycling Performance, Extreme Temperature Fluctuation Performance, Good Adhesion, Good Adhesive Strength, Good Bonding Strength, Good Reactivity, High Durability, High Impact Resistance, High Performance, High Reliability, Improved Flexibility, Room Temperature Curing, Thermal Resistance, Weather Resistance

Technical Data Sheet
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Enhanced TDS

Identification & Functionality

Features & Benefits

Labeling Claims
Ready-to-Use Product Features
Product Highlights
  • No Surface Preparation Required
  • Non-Flammable & Low Odor engineered formulation
  • Excellent Adhesion Properties
  • Excellent Strength to Metals, E-Coat, Thermoplastics, Thermosets, and Engineering Plastics
  • Excellent Impact Resistance
  • Suitable for Easy Manual and Pneumatic Dispensing
  • Excellent Thermal Performance
  • 100% Reactive
  • Room Temperature Cure
  • 10:1 meter-mix product for ease of application
  • Use on as received metal surfaces including aluminum, stainless and plated steels and forms tough, high strength bonds without surface preparation

Applications & Uses

Application Method
Compatible Substrates & Surfaces
Recommended Uses

Recommended For

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
Application Instructions

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.

Properties

Physical Form
Appearance
Off White or Amber Viscous Liquid
Typical Properties
ValueUnitsTest Method / Conditions
Mixed Density1.05g/cc-
Cured Mechanical Properties
ValueUnitsTest Method / Conditions
Gap Fill Dimension0.25inch-
Hardness75.0Shore D-
Tensile Strength2800 - 3200psi-
Over Lap Shear Strength2800 - 3200psiCarbon Steel
Over Lap Shear Strength2800 - 3200psiAluminum
Cured Thermal Properties
ValueUnitsTest Method / Conditions
Thermal Service Range-67 to 225°F-
Uncured Properties
ValueUnitsTest Method / Conditions
Flash Pointmin. 200°F-
Cure TemperatureRoom Temperature--
Open Time4 - 6minutes-
Fixture Time7 - 10minutes-
Cure Time24.0hrs-
Mixed Material Properties
ValueUnitsTest Method / Conditions
Volume Mix Ratio10:1--
Weight Mix Ratio10:1--
Rheological Properties
ValueUnitsTest Method / Conditions
Viscosity (Resin)30000.0cPsat 25°C
Viscosity (Activator)50000.0cPsat 25°C
Thixotropic Index5.0--

Packaging & Availability

Packaging Information
  • The MP58420 is conveniently packaged in 50 ml, 380 ml, 490 ml, pail, and drum kits.
  • Special packaging is available upon request.

Storage & Handling

Shelf Life
1 Year
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.
Storage and Shelf Life Information
  • Product should be stored in a cool dry place out of direct sunlight.
  • The shelf life of MP58420 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