Technical Information

Chem-Pruf® was the first fiberglass reinforced plastic (FRP) manufacturer to resin transfer mold a solid fiberglass frame.  Our frames were engineered to be as corrosion resistant as can be made, easy to install, and strong enough to survive even the most extreme conditions.  The outer surface of Chem-Pruf® door frames consist of a 25-mil gel coat layer, which is molded in.  This gel coat layer is the first line of defense against environmental and chemical attack.  It is equivalent to about 50-60 coats of paint and will never need painting. 

Chem-Pruf® frames use various types of inorganic cores to reduce weight and provide structural rigidity.  Our frames are manufactured using a resin transfer method in closed rigid molds, assuring uniformity in color and size.  The frames are assembled to the door at the factory, and all hardware is fitted as required.  This assures that all components work properly when installed in the field.