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Technical Product Data Sheets

(NEMA grade C, CE, L, LE, XX, XXX, XPC, G-Series glass laminates)

Phenolic's corrosion resistant capacity makes it appropriate for applications in industries where corrosive materials are in prevalent usage. The chemical processing and pulp and paper industries, for instance, use Phenolic extensively for tank liners, rollers and gaskets as well as myriad other items that are exposed to instant corrosive conditions. Phenolic is one of the strongest materials known to industry. Since it is so tough, Phenolic is given many tasks that would ordinarily be reserved for metals. The machine tool industry uses it to make long-lasting gears, pinions, bushings and bearings that are quieter and more economical than metal parts.

Paper with phenolic grade provides low cost electrical and mechanical properties. It is widely used for switchboards, panel boards, insulating wafers and intricate punched parts

Cotton with phenolic grade provides more mechanical strength than paper grades and has a finer surface with better machinability. This material is used for gears, pinions, bearings, bushings and many structural applications.

Glass with phenolic grade offers more mechnical strength and moisture resistance. This grade is often used as gaskets and seals.

Glass with melamine grade is specified for mechanical strength and arc resistance. It is used for circuit breaker parts, switchboard panels and arc barriers.

Glass with epoxy grade combines high mechanical strength, good electrical properties and excellent moisture resistance. These properties prevail at elevated temperatures. Flame retardant grades are available. They are used as structural members, slot insulation, wedges and panels.

Glass with silicone grade combines excellent heat resistance and electrical properties. Uses include Class H insulation, appliance insulation and high-temperature electrical equipment.

Typical Values

Units C L XXX G-Series
Density lb/cu in 0.053 0.052 0.047 0.069
Water Absorption % 1.8 1.3 0.5 0.05
Hardness Rockwell M 100 100 110 115
Tensile, with grain psi 13,000 11,500 20,000 50,000
Compressive, flatwise with grain psi 39,000 36,000 358,000 60,000
Flexural, flatwise psi 20,000 19,000 23,000 70,000
Bonding psi 2,100 1,900 1,000 2,600
Maximum operating temperature ° C  120 120 120 150
Impact strength, Izod edgewise with grain F+-15/in 2.3 1.6 0.8 12.0
Shear, flatwise psi 13,000 13,000 12,000 ----
Dielectric Strength, perpendicular VPM, short time 200 250 475 ----
Dissipation factor @106 cycles/sec ---- ---- 0.042 0.018
Dielectric constant @106 cycles/sec ---- ---- 4.9 7.2
Volume resistivity megohm. cm. ---- ---- 3 X 107 1.5 X 107
Surface resistivity megohms ---- ---- 7 X 105 1.5 X 107
Arc resistance seconds ---- ---- 124 180
Parallel dielectric Ku 25 25 65 70

Material Availability:

Rods: Diameters : .062 inch to 6 inches
Plates: .011 inch to 6 inch thickness, 36 X 48 inches, 48 X 48 inches
3/4" and up thickness up to 48 X 96 inches
Profiles, tubes and special sizes are available on request

This information is only to assist and advise you on current technical knowledge and is given without obligation or liability. All trade and patent rights should be observed. All rights reserved.

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