PERMABOND ET538
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
- Thixotropic Vertical-Surface Control
- 120 to 150-Minute Working Window
- High-Strength Structural Bonding
Product Description
Permabond® ET538 is a structural, room-temperature curing two-part epoxy adhesive designed for high-performance applications across a wide variety of substrates. It delivers exceptional adhesion to wood, metal, ceramics, and many composite and plastic materials. Its extended usable life (120-150 minutes) makes it ideal for large-scale applications or batch production processes, while its thixotropic, non-drip rheology allows for effective gap filling and application on vertical surfaces without slumping.
Key features
- Non-drip rheology: The thixotropic, "non-slump" nature of the mixed adhesive makes it perfect for filling large gaps (up to 5 mm) and for use on vertical surfaces.
- Extended pot life: Offers a long usable life of 120-150 minutes, providing ample time for the assembly of large components or batch processing.
- High structural strength: Cures at room temperature to provide excellent impact strength and high shear and peel strength across diverse substrates.
Applications / Suitable for
- Large-scale assemblies or batch production requiring an extended working time
- Vertical applications or assemblies with large gaps 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 | 1:1 | - | - |
| Mix Ratio by Weight | 100:130 | - | - |
| Chemical Composition | Epoxy Resin | - | Part A (ET538 A) |
| Chemical Composition | Polyamine Hardener | - | Part B (ET538 B) |
| Appearance | White | - | Part A (Paste) |
| Appearance | Dark grey | - | Part B (Paste) |
| Viscosity (Part A) | 75,000 | cP | at 25°C, 20rpm (mPa.s) |
| Viscosity (Part A) | 225,000 | cP | at 25°C, 2.5rpm (mPa.s) |
| Viscosity (Part B) | 30,000 | cP | at 25°C, 20rpm (mPa.s) |
| Viscosity (Part B) | 60,000 | cP | at 25°C, 2rpm (mPa.s) |
| Specific Gravity (Part A) | 1.1 | - | - |
| Specific Gravity (Part B) | 1.4 | - | - |
| 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 | 3-5 | hours | at 23°C |
| Working Strength | 24 | hours | at 23°C |
| Full Cure | 72 | hours | at 23°C |
| Shear Strength | 25-30 | N/mm² | Mild steel (ISO 4587) (3625-4350 psi) |
| Shear Strength | 22-26 | N/mm² | Aluminium (ISO 4587) (3190-3770 psi) |
| Shear Strength | 28-32 | N/mm² | Stainless Steel (ISO 4587) (4060-4640 psi) |
| Shear Strength | 17-20 | N/mm² | Zinc (ISO 4587) (2500-2900 psi) |
| Shear Strength | 20-24 | N/mm² | Carbon Fibre (ISO 4587) (2900-3480 psi) |
| Shear Strength | 6-8 | N/mm² | FRP Glass/Polyester (ISO 4587) (870-1160 psi) |
| Shear Strength | 18-22 | N/mm² | FRP Glass/Epoxy (ISO 4587) (2610-3190 psi) |
| Shear Strength | 3-5 | N/mm² | Polycarbonate (ISO 4587) (435-725 psi) |
| Shear Strength | 3-5 | N/mm² | PA6 30% filled (ISO 4587) (435-725 psi) |
| Peel Strength | 60-80 | N/25mm | Aluminium (ISO 4578) (13-18 PIW) |
| Hardness | 70-80 | 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) | - |
