L Phenoic

L Phenoic


What is the Material: L Phenolic is a thermoset material, which consists of cotton linen filled with phenolic resin.

Key Material Features: This material is beneficial in applications requiring mechanical properties.

Other Considerations: The finer weave of the linen allows for machining more intricate details than the canvas (C and CE) phenolic. This is useful in applications such as  gear teeth. LE is the electrical grade version of linen phenolic.


Property Value Typical ASTM Test
Chemical Designation (L) Linen Phenolic
Trade Names (®, ™) Lamitex L
Filler Phenolic
Color Brown
Density (g/cm^3) 1.34 D 792


Property Value Typical ASTM Test
Tensile Strength at Yield (psi) 14000 D 638
Flexural Strength (psi) 23000 D 790
Modulus of Elasticity (Flexural Test) (psi) 1600000 D 790
Compression Strength: 10% Strain (psi) 35000 D 695
Impact Strength (Izod) (ft-lbs/in) 1.35 D 256
Hardness (M) 105 D 785


Property Value Typical ASTM Test
Service Temperature Continuous (°F) 257
Service Temperature Minimal (°F) -50
Thermal Expansion (CLTE) (in/in/°F) 1.04E-05 D 696
Thermal Conductivity (BTU-in/hr-ft^2-°F) 2.03


Property Value Typical ASTM Test
Specific Surface Resistance (Ω/square) 1.00E15 D 257
Dielectric Constant (1MHz) 6 D 150


Property Value Typical ASTM Test
Moisture Absorption (%) (24 Hours) 1.8 D 570
Flammability HB
The data stated are typical values intended for reference and comparison purposes only. The data should not be used as a basis for design specifications or quality control. The information is provided as a guide to the best of our knowledge and given without obligation or liability. Testing under individual application circumstances is recommended.