Chemical Resistance Epoxy

Overview

Engineering reference data for Chemical Resistance Epoxy in material science and properties.

Key Formulas

Stress

$\sigma = \frac{F}{A}$

Force per unit area.

Strain

$\varepsilon = \frac{\Delta L}{L_0}$

Change in length per original length.

Hooke's Law

$\sigma = E \varepsilon$

Stress proportional to strain in elastic region.

Thermal Expansion

$\Delta L = \alpha L_0 \Delta T$

Length change due to temperature.

Variables

Symbol	Description	Unit
$\sigma$	Stress	Pa
$\varepsilon$	Strain	—
$E$	Young's modulus	Pa
$\alpha$	Thermal expansion coefficient	1/°C
$\Delta T$	Temperature change	°C

Chemical Resistance Data

The following table provides an indication of epoxy resistance to various chemical compounds. Always verify chemical resistance with the epoxy manufacturer for your specific application.

Resistance Rating Definitions

Rating	Description
Excellent	Epoxy exhibits no significant degradation; suitable for continuous exposure
Good	Minor effects possible; suitable for most applications with monitoring
Fair	Noticeable degradation may occur; limited exposure recommended
Not Recommended	Significant degradation expected; avoid contact with epoxy surfaces

Note: Temperature ratings indicate maximum recommended service temperature. Many chemicals that show "Excellent" resistance at room temperature (71°F / 22°C) may cause degradation at elevated temperatures. Always confirm compatibility with your specific epoxy formulation and manufacturer specifications.

References

• Original Source