Phenolic vs Epoxy Coatings
Baked phenolic vs epoxy
| Baked phenolic | Epoxy | |
|---|---|---|
| Acid and solvent resistance | Very high. | High; generally better against alkalis than acids. |
| Cure | Oven bake only. | Baked or ambient, depending on the product. |
| Flexibility | Hard, less flexible. | More flexible, better impact resistance. |
| UV resistance | Degrades without a topcoat. | Chalks and fades in sunlight. |
| Suitable parts | Loose coils that fit the dip tank and oven. | Loose coils; air-dry grades for assembled units and field use. |
Choose baked phenolic if…
- Strong acid or solvent vapour at a chemical plant
- Loose coils that can be dipped and baked
- The specification names a baked phenolic
Choose epoxy if…
- Mixed chemical exposure with some flexing or impact
- Units that cannot be baked (air-dry grade)
- Field repair of a factory coating
Cost and lead time
Baked phenolics need a dedicated dip-and-bake process, so they are specified mostly for loose coils in volume and add a line step with limited availability. Epoxies are more widely available and can be applied by more methods. Where the project allows, compare both against an air-dry chemical-resistant system such as PG-C, which works on complete units and in the field.
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