Phenolic Resin

Phenolic resin is a synthetic material of the group of thermosetting plastics. Phenolic resin is heat resistant, water tight but very hard and brittle. Phenolic resins form the base for the printed circuit board base material FR1+2. During heating, moisture and volatile matters are being released, so that they are today replaced by other compounds that do not possess these disadvantages, for example epoxy resins.