CE sheet is the flat-stock form of CE grade cotton phenolic — a thermoset laminate produced by impregnating coarse cotton canvas with phenolic resin and pressing the assembly under heat and pressure into rigid flat panels. CE sheet conforms to NEMA LI-1 and the defense standard MIL-I-24768/14, and is one of the most widely stocked industrial phenolic grades due to its balance of electrical insulation, mechanical toughness, and machinability.
CE sheet exhibits a tensile strength of 36,000 psi, flexural strength of 17,000 psi, compressive strength of 10,000 psi, and Rockwell M100 hardness. Shear strength is 14,000 psi. The 94HB flammability rating and a maximum continuous operating temperature of 255°F (125°C) allow reliable service in most industrial and electrical environments. Water absorption over 24 hours measures 2.00%, supporting stable dimensional performance in humid conditions.
Standards & compliance. CE sheet is classified under NEMA LI-1 and meets MIL-I-24768/14 Type FBG. Material testing follows ASTM D709. Ready Plastics stocks CE phenolic sheet in a range of thicknesses; standard sheet sizes are available, and custom cuts can be arranged. Contact us for current inventory and pricing.
Sister grades. Grade C phenolic sheet is a lower-cost coarse-cotton option for purely mechanical applications where electrical performance is not a priority. Grade LE phenolic sheet uses a finer linen weave and offers higher dielectric strength for demanding electrical insulation duties. For higher strength-to-weight and lower moisture absorption, G-10 glass-epoxy sheet is the natural step-up.
