B.I.R.S. Machine & Supply distributor of Mil-I-24768/13 FBE Linen Grade LE Phenolic.
NEMA grades L and LE Linen Cotton-Cloth Reinforced Phenolic natural color is typically light tan to brown. This grade is composed of a continuous cotton woven cloth impregnated with phenolic resin binder. This grade contains fine woven linen and, like the canvas phenolic; is known for its mechanical properties. The finer weave allows for machining more intricate details than canvas grade, such as gear teeth, etc. These grades are not recommended for primary electrical insulation, but grade LE exhibits superior moisture resistance to grades L, C and CE, and thus is an adequate insulator for a fair number of applications. (Grade L certifies to Mil-I-24768/15 FBI; grade LE certifies to Mil-I-24768/13 FBE.)