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What grade is a phenolic resin sheet?
Insulation Grades and Related Information of Phenolic Resin Sheets
Phenolic resin sheets are high-performance insulating materials widely used in electrical and mechanical fields, favored for their excellent thermal resistance and insulating properties. Below is a summary of the insulation grades and related information on phenolic resin sheets:
- 1.Insulation Grades
Thermal Resistance Grades:
Class B: Can operate continuously at temperatures between 130-155°C.
Class F: Can operate continuously at temperatures between 155-180°C.
Insulation Properties:
Phenolic resin sheets possess high mechanical and dielectric properties, so they can effectively maintain their insulating performance in electrical equipment and insulation structures.
- 2.Product Features
Material Composition:
Phenolic resin sheets are made from alkali-free glass fiber cloth impregnated with epoxy phenolic resin, which is then baked and hot-pressed.
Properties:
· Excellent thermal and moisture resistance.
· Good machinability.
· High mechanical strength, dielectric properties, oil resistance, and corrosion resistance.
- 3.Application Fields
Phenolic resin sheets are suitable for insulating structural components in high-demand electrical machinery and electrical equipment and can be used in humid environments and transformers.
- Summary
As an insulating material, phenolic resin sheets have excellent thermal and insulating properties, mechanical strength, and corrosion resistance. Their Class B or Class F thermal resistance grades allow them to maintain stable insulating performance over a wide temperature range, making them widely used in electrical equipment and insulation structures.
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