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Phenolic Paper Laminate – Class XX
Our Phenolic Paper Sheet Class XX is created by subjecting phenolic resin-impregnated insulation paper to heat and pressure. This industrial laminate is specifically engineered for insulating components in electric motors and electronic appliances that demand exceptional mechanical strength and insulation against oils.
Within the phenolic family, Grade X, XX, and XXX Phenolic Paper Laminates are the most cost-effective materials. Phenolic paper offers reliable mechanical properties, and each “X” signifies varying levels of dielectric strength and mechanical performance. Grade XX is ideally suited for general electrical insulation needs and is compliant with MIL-I-24768/11 TYPE PBG.
Grade XX Paper Phenolic Laminate excels in electrical properties, boasting high dielectric strength and arc resistance. This material is commonly utilized in switchgear and transformers, serving as switchboards, panel boards, insulating washers, and bushings.
The Phenolic Paper Sheet Class XX is designed to have a smooth surface, free from imperfections such as bubbles, corrugations, cracks, and separations. It should also be devoid of blemishes like scratches, impressions, stains, or uneven color. However, minor color variations are permissible in solid sheets.
Phenolic Paper Laminate – Class XX offers numerous advantages:
- Ease of Machining: This material is straightforward to machine.
- Cost-Effective: It is the most budget-friendly option within the phenolic family.
- Wear Resistance: Phenolic paper laminate demonstrates good wear resistance.
- Low Moisture Absorption: It has minimal moisture absorption.
- Excellent Mechanical Strength: It offers robust mechanical properties.
- Strength and Stiffness: Phenolic paper laminate is strong and stiff.
- High Impact and Compressive Strength: It provides high impact and compressive strength.
Key Strengths
- Exceptional Dielectric Properties: Phenolic Paper Laminate – Class XX boasts excellent dielectric properties.
- Ease of Machining and Processing: It is highly machinable and easy to work with.
- Superior Chemical Resistance: This material offers superior resistance to acids, chemical solvents, and insulating oils.

