# Furnace thermal insulation

Provides protection against high temperatures in industrial applications with graphite and carbon felts.

Family: Thermal applications

## Processes
- Insulation of heat-treatment furnace chambers
- Soft felt liners and rigid panels

## Challenges
- Heat losses
- Fiber contamination
- Chamber geometry fit
- Incorrect choice between soft and rigid felt

## Advantages
- Low thermal conductivity
- Vacuum stability
- Cut-to-size
- Soft + rigid combination by zone

## Limitations
- Oxidation in air above ~400–500 °C
- Chemical compatibility with specific atmospheres
- Design must account for shrinkage and service life

- [Applications](https://esgraf.com/en/applications)
- [Alternate](https://esgraf.com/aplicaciones/hornos-aislamiento-termico)