PERMABOND ET540
Harmonization Code : 3506.91.90.99 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg ; Adhesives based on polymers of headings 3901 to 3913 or on rubber; Other ; Other
Main features
- Toughened Epoxy Bonding
- 120 to 150-Minute Working Window
- Metal-to-Wood Epoxy Bonding
Product Description
Permabond® ET540 is a two-part, 2:1 mixable, semi-flexible toughened epoxy adhesive designed to deliver high peel resistance and high shear strength. Formulated with a no-slump, non-drip rheology, it is highly suitable for large gaps and vertical applications across a variety of substrates including wood, metal, ceramics, and many plastics and composites. It offers an extended work life, making it ideal for larger applications that require adjustments during assembly.
Key features
- Non-drip rheology: The thixotropic, no-slump nature of the mixed adhesive makes it perfect for filling large gaps (up to 5 mm) and for use on vertical surfaces without running.
- Extended pot life: Offers a long usable life of 120-150 minutes, providing ample time for the assembly and adjustment of large components.
- High structural strength: Toughened and semi-flexible, it provides excellent impact strength, high peel resistance, and high shear strength across diverse substrates while resisting high temperatures.
Applications / Suitable for
- Large-scale assemblies requiring an extended working time for adjustments
- Vertical applications or assemblies with large gaps (up to 5 mm) requiring a non-slump adhesive
- Structural bonding of metals, wood, ceramics, plastics, and composites
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Thermal Properties
Electrical Properties
Other Properties
Additional Information
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix Ratio by Volume | 2:1 | - | - |
| Chemical Composition | Epoxy Resin | - | Part A (ET540 A) |
| Chemical Composition | Polyamine Hardener | - | Part B (ET540 B) |
| Appearance | White | - | Part A |
| Appearance | Amber | - | Part B |
| Viscosity (Part A) | 75,000 | cP | at 25°C, 20rpm (mPa.s) |
| Viscosity (Part A) | 225,000 | cP | at 25°C, 2rpm (mPa.s) |
| Viscosity (Part B) | 150,000 | cP | at 25°C, 20rpm (mPa.s) |
| Viscosity (Part B) | 500,000 | cP | at 25°C, 2rpm (mPa.s) |
| Specific Gravity (Part A) | 1.1 | - | - |
| Specific Gravity (Part B) | 1.0 | - | - |
| Maximum Gap Fill | 5 | mm | (0.2 in) |
| Usable / Pot Life | 120-150 | minutes | at 23°C |
| Flash Point | > 100 | °C | - |
After-processing / final-state properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Handling Time | 150-180 | minutes | at 23°C |
| Working Strength | 24 | hours | at 23°C |
| Full Cure | 72 | hours | at 23°C |
| Shear Strength | 22-26 | N/mm² | Mild steel (ISO 4587) (3190-3770 psi) |
| Shear Strength | 20-24 | N/mm² | Aluminium (ISO 4587) (2900-3480 psi) |
| Shear Strength | 32-35 | N/mm² | Stainless Steel (ISO 4587) (4640-5075 psi) |
| Shear Strength | > 25 | N/mm² | Carbon Fibre (ISO 4587) (>3625 psi) SF |
| Shear Strength | > 8 | N/mm² | FRP Glass/Polyester (ISO 4587) (>1160 psi) SF |
| Shear Strength | 23-27 | N/mm² | FRP Glass/Epoxy (ISO 4587) (3335-3915 psi) |
| Shear Strength | 2-3 | N/mm² | PEEK (ISO 4587) (290-435 psi) |
| Shear Strength | 2-4 | N/mm² | Polycarbonate (ISO 4587) (290-580 psi) |
| Shear Strength | 3-5 | N/mm² | PA6 30% filled (ISO 4587) (435-725 psi) |
| Peel Strength | 60-80 | N/25mm | Aluminium (ISO 11339) (13-18 PIW) |
| Hardness | 60-75 | Shore D | ISO 868 |
| Elongation at Break | 4-8 | % | ISO 37 |
| Glass Transition Temperature (Tg) | 45-55 | °C | (113-131°F) |
| Dielectric Strength | 15-25 | kV/mm | - |
| Thermal Conductivity | 0.55 | W/(m.K) | - |
