Polychem 7034-X-50 Alkyd resin OPC Polymers Alkyd Resins VM&P and xylene POLYCHEM 7034-X-50 is a chain stopped alkyd having fast set and tack free properties with excellent durability. It has good aliphatic solvent tolerance. White or light colored enamels/ Enamels for machinery, toys... Tofa Air drying Air drying, chain stopped tofa alkyd resin. Used in white and light colored enamels and enamels for machinery and toys. Offers fast set and tack free properties, very good durability and good aliphatic solvent tolerance.