... Besides the excellent qualities I. E., solubility, compatibility, adhesiveness, resistance for water, weather and heat it possesses, it stands chemically stable ... fields of oil ink, paper bonding, sealant etc.Storage: Keep it in cool, breezy warehouse, avoid direct sun.Specification: (C9/C5) ... value0.1% max. PH value6-8 THE NEWEST TYPE PUYANG HOT SELLING C9 PETROLEUM RESIN FOR RUBBER,PAINT AND INK