GP 4445 Phenol-formaldehyde Georgia-Pacific Chemical Phenol Formaldehyde (PF) Coatings Georgia-Pacific Resins, Inc. (GPRI) supplies formaldehyde solution at 45% concentration, uninhibited grade. Other concentrations and methanol-inhibited grades are also available. This solution is a high purity product that is highly reactive. It is produced by the catalytic oxidation of synthetic methanol under rigid quality control conditions. coatings; varnishes and enamels; High purity, highly reactive, uninhibited formaldehyde solution. Used in coatings, varnishes and enamels.