3. Parts manufacturing processes

3.1 Short-fibre parts

Impregnation with a solution of phenolic resin diluted or undiluted in a solvent such as water, alcohol or ketone, and which may contain fillers, can be carried out :

• or directly on fibers ranging in length from a few millimeters to a few centimeters; a mixing operation ensures homogeneous impregnation;

• or on fibers several hundred meters long, which are then cut to the desired length.

The impregnated short fibers (25% to 55% resin content) are then placed in a press mold. The material is shaped and cured at around...