DUBL-CHEK DR-60 Cleaner / Remover can be used in the penetrant process to remove excess penetrant from part surfaces. In the penetrant process it is a manual wipe on and wipe off material and is recommended for small areas. DR-60 may also be used for generally cleaning oily, dirty surfaces. DR-60 is especially suitable for cleaning prior to the application of inspection penetrants. Complies with low sulfur and low halogen requirements.