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
- 320 ml
- Country of origin
- Italy
- UFI (Unique Formula Identifier)
- MUY0-N08E-Q002-4HD3
Cure speed (oven)
- 130° C
- 75 minutes
- 150°C
- 60 minutes
- 170°C
- 25 minutes
Performance at Full Cure
- Thermal conductivity
- 1.0 W/(mK)
- Dielectric strength
- 40-45 kV/mm
Physical Properties
- Color
- black
- Chemical group
- Epoxy resin
- Viscosity (adhesives)
- High viscosity >5000 mPas
- Viscosity mPa.s
- 600000-800000
- Specific Gravity
- 1,6
Curing values
- Maximum gap fill (mm)
- 5
Mechanical properties
- Hardness (Shore D)
- 80-85
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)
- 2-7
- Coefficient of thermal expansion
- 45 x 10-6 mm/mm/°C (
Features
- TG Value
- 105°C
Product Description
Permabond ES578 is a 1K epoxy with UL94-V0 flame retardancy — the premium choice for safety-critical industrial bonding applications with fire protection requirements.
Unlike standard industrial epoxies, ES578 is certified flame-retardant according to UL94-V0 (Underwriter's Laboratory) — a rare property required in safety-critical industrial applications such as control cabinets, e-mobility components and power electronics.
As a one-component heat-cure epoxy, ES578 is applied directly without mixing—thus avoiding pot life issues. Curing occurs through the application of heat (typically 30 minutes at 150 °C). The black cure makes the product visually inconspicuous on dark substrates.
UL94-V0 according to Underwriter's Laboratory — Permabond ES578 is one of the few 1K epoxies with a flame-retardant UL94-V0 classification. The choice for safety-critical industrial applications with fire protection requirements — control cabinets, e-mobility components, power electronics.
What distinguishes Permabond ES578
What is Permabond ES578 used for?
Processing
Recommended accessories
Important Notes
Which Permabond 1K epoxy for which application?
Permabond ES578 in direct comparison with related products of the ES series.
Permabond ES578 Current Product | Permabond ES566 → | Permabond ES569 → | Permabond ES550 → | |
|---|---|---|---|---|
| Application | UL94-V0 1K epoxy — flame retardant + high temperature resistant | High temperature without UL94 | High temperature without UL94 | Standard application |
| Chemistry | One-component epoxy resin (heat-cure) | 1K epoxy | 1K epoxy | 1K epoxy |
| Curing | Heat curing required (typically 30 min @ 150°C) | Heat-cure | Heat-cure | Heat-cure |
Frequently asked questions about Permabond ES578
Practical application and design questions — answered by SILITECH.
UL94-V0 1K epoxy — flame-retardant according to Underwriters Laboratory, high-temperature resistant. 1K 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 is required (typically 30 min @ 150 °C or 60 min @ 120 °C). 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 ES578 is approved according to UL94-V0 Flame Retardancy. Compliance letter available from Permabond/SILITECH.
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 ES578 (UL94-V0 1K epoxy — flame-retardant + high-temperature resistant); Permabond ES566 (high-temperature 1K); Permabond ES569 (high-temperature 1K); Permabond ES550 (standard 1K). For UL94-V0 fire protection, see ES578; for high temperature, see ES566/ES569; for IR/hot air curing (without an industrial oven), see ES5691.