This grade is composed of
a continuous cotton woven cloth impregnated with a phenolic
resin binder. This grade contains a fine weave linen and,
like the canvas phenolic, is known for it's mechanical properties.
The finer weave allows for machining more intricate details than
Canvas, like gear teeth. This grade is not recommended for
primary insulation. Certifies to Mil-I-24768/13 FBE