XX - Paper Phenolic

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Key Characteristics of XX Phenolic

Paper Phenolic (XX) is a thermoset composite known for its excellent electrical insulation properties. 

 

It is made from layers of paper impregnated with phenolic resin, which provides good mechanical strength and dimensional stability.

 

This material is lightweight and easily machinable, making it suitable for a variety of applications where electrical insulation and moderate mechanical strength are required.

 

Paper Phenolic XX is commonly used in applications with operating temperatures up to 250°F (121°C) and has relatively low moisture absorption, contributing to its stability and longevity in humid conditions. However, it is best suited for low to moderate mechanical stress applications.

How XX Phenolic is Used:

Insulating Panels: Its dielectric properties make it ideal for creating panels used in electrical insulation.


Switchboards: XX phenolic is frequently used in low-voltage switchboards and control panels due to its insulating capabilities and machinability.


Relay Spacers: Its lightweight and machinable nature make it suitable for precision relay spacers in electrical systems.


Terminal Bases: Paper Phenolic XX is used for terminal bases where its insulating properties and mechanical stability are essential.


Electrical Bushings: The material’s good machinability and electrical insulation make it perfect for bushings in electrical systems.

Technical Specifications

Explore the mechanical and structural properties of Ready Plastic's Paper Phenolic (XX)

Military/Fed Spec: Mil-1-24768/11 Type PBG
Specific Gravity: 1.35
Tensile Strength (psi): 17,000
Comp. Strength: 35,000
Flexural Strength (psi): 34,000
Hardness, M Scale: 120
Bond Strength: 1,500
Shear Strength (psi): 11,500

Dissipation Factor, 10 cycles, Cond A: 0.040
Dielectric Constant 10 cycles, Cond A: 5.30
Electric Strength V/MIL Cond A: 750
Flammability Rating: 94HB
Max. Oper. Temp C/F: 140/284
Coeff. Thermal Exp. IN/IN/C x 10-5: 1.20
Water Absorption %-24 hrs: 2.00
Izod Impact Strength (ft/lb/in) @ 49 C: 0.80