Product Short Description: RXSOL 664 is a diphase, liquid product based on volatile aliphatic solvent and also containing tar-acids, corrosion inhibitors and alkaline soaps. Product Description: RXSOL 664 is a diphase, liquid product based on volatile aliphatic solvent and also containing tar-acids, corrosion inhibitors and alkaline soaps. It is used for the removal of hard carbon and paint from engineering components and equipment. RXSOL 664 is a good general purpose, immersion paint remover and will usually remove the following types of organic finishes – cellulose paints, air drying alkyds and acrylics, one pack polyurethanes and some epoxies depending on type and nature of the substrate. It should be noted that this information on paint types is given as a guide only: the removability of any particular paint in RXSOL 664 – or any other paint remover should always be assessed by practical trial before any production scale use.