Silicones, silicone oils, sprays
Casting and potting resins
Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Brand
- Permabond
- Container
- 400 ml
- Country of origin
- Italy
- Mixing Ratio
- 2:1
Physical Properties A
- Chemical Group (A)
- Epoxy resin
- Color (A)
- White
- Viscosity 20rpm (A)
- 50000-100000
- Viscosity 2rpm (A)
- 150000-300000
- Specific gravity (A)
- 1.1
- UFI Part A
- APF0-G0GT-4001-SATY
Physical Properties B
- Chemical Group (B)
- Polyamine hardener
- Color (B)
- amber yellow
- Viscosity 20rpm (B)
- 150000
- Viscosity 2rpm (B)
- 500000
- Specific Gravity (B)
- 1.0
- UFI Part B
- RQ41-G0M2-5008-UYKS
Performance at Full Cure
- Dielectric strength
- 15-25 kV/mm
- Elongation at break (elasticity) (ISO37)
- 4-8%
- Thermal conductivity
- 0.55 W/(mK)
Bonding Properties
- Functional Strength
- 24 hours
- Final strength at 23°C
- 72 hours
Curing values
- Maximum gap fill (mm)
- 5
- Pot Life at 23°C
- 120-150 minutes
- Hand Strength at 23°C
- 150-180 minutes
Mechanical properties
- Hardness (Shore D)
- 60-75
Shear strength ISO 4587 in N/mm²
- Steel
- 14-18 N/mm²
Thermal Properties
- Operating temperature (°C)
- -40 to +120
- Storage Temperature (°C)
- 5-25
Features
- TG Value
- +45-55°C
Product Description
Permabond ET540 is a high-strength 2K epoxy in a 2:1 volume ratio with an exceptionally long pot life — designed for high-volume production and complex plant assembly.
The 2:1 mixing ratio offers different processing characteristics than 1:1—often the smaller component is used as the hardener. The long pot life of 120–150 minutes allows for large processing cycles without the adhesive gelling prematurely.
High-strength 2K epoxy with an unusually long pot life of 120–150 minutes and a 2:1 mixing ratio — developed for large-scale production and plant assembly with long processing cycles.
What distinguishes Permabond ET540
What is Permabond ET540 used for?
Processing
Recommended accessories
Important Notes
Which Permabond 2K epoxy for which application?
Permabond ET540 in direct comparison with related products of the ET series.
Permabond ET540 Current Product | Permabond ET5401 → | Permabond ET5411 → | Permabond ET538 → | |
|---|---|---|---|---|
| Application / Property | High-strength 2-component epoxy 2:1 — very long pot life for large-scale production | Very short pot life | Heat resistant | 1:1 mixing ratio |
| Mixing ratio | 2:1 by volume | 2:1 | 2:1 | 1:1 |
| Pot life | 120–150 minutes @ 23 °C | 10–12 min | — | 120–150 min |
| Steel shear strength | 22–26 N/mm² | 20–30 N/mm² | — | 25–30 N/mm² |
| Carbon fiber | — | 22–24 N/mm² | — | 20–24 N/mm² |
Frequently asked questions about Permabond ET540
Practical application and design questions — answered by SILITECH.
High-strength 2-component epoxy 2:1 — very long pot life (120–150 min) for high-volume production. The 2-component epoxy is mixed in a 2:1 volume ratio and offers a pot life of 120–150 minutes @ 23 °C.
Mix both components in a 2:1 ratio by volume — using a mixing nozzle for dual cartridges, weigh precisely for larger containers. Apply within the pot life (120–150 minutes @ 23 °C) and join components. Full curing typically occurs after — at room temperature.
The pot life of Permabond ET540 is typically 120–150 minutes at 23 °C. Higher temperatures shorten, lower temperatures lengthen the pot life. Mixing quantities above approximately 100 g may gel more quickly due to an exothermic reaction.
Permabond ET540 bonds reliably to: steel: 22–26 N/mm². For thermoplastic substrates, test compatibility before series production.
Permabond ET540 does not have specific industry-specific approvals such as EU 10/2011 (food), UL94 (fire protection), or Boeing/Airbus (aerospace). For general industrial applications, the product is approved according to Permabond standards.
Permabond ET540 is a high-strength, two-component epoxy (2:1 ratio) with a very long pot life for large production runs (2:1 volume mix, 120–150 minutes pot life @ 23 °C). Permabond ET5401 is a fast-setting 2:1 (2:1, 10–12 min pot life) with a very short pot life.
From the Permabond 2K epoxy range, select according to application, mixing ratio, and strength requirements: Permabond ET540 (High-strength 2K epoxy 2:1 — very long pot life for large-scale production); Permabond ET5401 (Fast-curing 2:1); Permabond ET5411 (High-temperature 2:1); Permabond ET538 (Long pot life 1:1). For aerospace applications, see ET515 (Aircraft Seat Trays); for food applications, see ET5162 (EU 10/2011 + FDA); for thermal conductivity/fire protection, see ET5441 (UL94-V0).