Silicones, silicone oils, sprays
Casting and potting resins)
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Technical Data
Typical values, not a specification. The technical data sheet (TDS) is binding.
Product Information
- Manufacturer
- Permabond Engineering Adhesives Ltd
- Brand
- Permabond
- Container
- 320 ml, 1 kg
- Country of origin
- Italy
Cure speed (oven)
- 130° C
- 90 minutes
- 150°C
- 70 minutes
- 160°C
- 15 minutes
Performance at Full Cure
- Thermal conductivity
- 0.3 W/(mK)
Physical Properties
- Color
- white
- Chemical group
- Epoxy resin
- Viscosity (adhesives)
- High viscosity >5000 mPas
- Viscosity 2rpm
- 500000-1000000
- Viscosity at 20 rpm
- 100000-300000
Curing values
- Maximum gap fill (mm)
- 5
Mechanical properties
- Hardness (Shore D)
- >75
Shear strength ISO 4587 in N/mm²
- Steel
- 27-41
- Aluminum
- 17-31
- Zinc
- 14-27
Thermal Properties
- Operating temperature (°C)
- -40 to +180
- Storage Temperature (°C)
- 8-10
Product Description
Permabond ES5691 is a 1K epoxy that can be cured with an infrared lamp or hot air blower — the flexible heat-cure option without an industrial oven.
Unlike standard 1K epoxies that require an industrial oven, ES5691 can be cured with a simple IR lamp or hot air blower — opening up applications in workshops, mobile service operations and small manufacturing plants without heat-cure infrastructure.
One-component epoxy curing via infrared lamp or hot air — the flexible heat-cure option without an industrial oven. Ideal for mobile applications, repairs, and workshops without heat-cure infrastructure.
What distinguishes Permabond ES5691
What is Permabond ES5691 used for?
Processing
Recommended accessories
Important Notes
Which Permabond 1K epoxy for which application?
Permabond ES5691 in direct comparison with related products of the ES series.
Permabond ES5691 Current Product | Permabond ES569 → | Permabond ES550 → | Permabond ES566 → | |
|---|---|---|---|---|
| Application | 1K epoxy with IR/hot air curing | With oven | With oven | With oven |
| Chemistry | One-component epoxy resin (heat-cure with IR/hot light) | 1K epoxy | 1K epoxy | 1K epoxy |
| Curing | Heat curing with infrared lamp or hot air | Heat-cure | Heat-cure | Heat-cure |
Frequently asked questions about Permabond ES5691
Practical application and design questions — answered by SILITECH.
One-component epoxy with IR or hot air curing — flexible heat cure without an oven. One-component epoxies are processed directly without mixing and cured in a single heat-cure step.
1K epoxies are processed directly from the container without mixing — no pot life limitation, no mixing errors. Disadvantage: heat curing required (industrial oven, IR lamp, or hot air). 2K epoxies cure at room temperature but require precise mixing and have a limited pot life. 1K is suitable for line production with heat-cure infrastructure, 2K for workshops without an oven.
Heat curing with an infrared lamp or hot air. For exact conditions, see Permabond-TDS — typically 30 minutes at 150 °C or equivalent heat input (e.g., 60 min @ 120 °C).
1K heat-cure epoxies bond metals (steel, aluminum, copper), composites (CFK, GFK), ceramics, and selected plastics (with heat resistance). Substrates must tolerate the curing temperature (typically 150 °C).
Permabond ES5691 does not have specific industry approvals such as UL94-V0 (see ES578 for the flame-retardant variant). For general industrial applications, the product is approved according to Permabond standards.
At 5 to 25 °C. 1K heat-cure epoxies have limited storage stability — reactivity decreases with higher storage temperature. For long shelf life, store refrigerated. Allow adhesive to warm to room temperature before opening.
From the Permabond 1K epoxy range: Permabond ES5691 (1K epoxy with IR/hot air curing); Permabond ES569 (high temperature 1K); Permabond ES550 (standard 1K); Permabond ES566 (high temperature). For UL94-V0 fire protection, see ES578; for high temperature, see ES566/ES569; for IR/hot air curing (without an industrial oven), see ES5691.