MP 55320
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- No-Prep Multi-Substrate Bonding
- 7 to 12-Minute Open Time
- Thermal-Cycling/Chemical-Resistant Flexible Bonding
Product Description
MP-55320 is a high-performance, two-part modified acrylic structural adhesive engineered for bonding a wide range of plastics, metals, and composites. It cures at room temperature to deliver exceptional flexibility, outstanding bond strength, and robust resistance to extreme temperature fluctuations, thermal cycling, and harsh chemicals.
Key features
- No surface preparation required: Achieves excellent adhesion and impact resistance to most substrates without the need for prior surface treatment.
- Extended open time: Offers a 7 to 12 minute open time and 16 to 27 minute fixture time, providing flexibility for complex assemblies.
- Convenient 10:1 mix ratio: Easily dispensed using manual or pneumatic equipment for consistent meter-mix application.
Applications / Suitable for
- Engineered for metals including aluminum, steel, stainless steel, and e-coated metal.
- Ideal for thermosets such as fiberglass, epoxy, phenolic, and polyurethane.
- Suitable for a wide array of thermoplastics, including acrylic, ABS, polycarbonate, and nylon/PA.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
AppearanceAppearance
Off-white or amber, viscous liquidMix RatioMix Ratio
10:1Pot LifePot Life
8–14 min minutesProduct TypeProduct Type
Two-part modified acrylic structural adhesiveAdditional Information
Technical properties
As-supplied / before-processing properties
Pre-cure properties of MP-55320 structural adhesive.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance / Color | Off-white or Amber | - | - |
| Mix Ratio (Volume & Weight) | 10:1 | - | - |
| Viscosity (Resin) | 130,000 - 180,000 | cPs | Brookfield RV7, 20 RPM, 25°C |
| Viscosity (Activator) | 40,000 - 80,000 | cPs | Brookfield RV7, 20 RPM, 25°C |
| Mixed Density | 0.95 | g/cc | - |
| Open Time | 7-12 | Minutes | - |
| Fixture Time | 16-27 | Minutes | - |
Technical properties
After-processing / final-state properties
Cured mechanical and thermal properties of MP-55320.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Hardness | 45 | Shore D | ASTM D2240 |
| Tensile Strength | 15 to 30 (2175 to 4350) | MPa (psi) | ASTM D638 |
| Overlap Shear Strength (Carbon Steel) | 2900 | psi | ASTM D1002, 25°C 50% RH |
| Overlap Shear Strength (Aluminum) | 2900 | psi | ASTM D1002, 25°C 50% RH |
| Thermal Service Range | -67 to 250 | °F | - |
