K-PW 72 is a ferrous metal safe powdered cleaner that is safe for use on most aluminum alloys. K-PW 72 may also be used in multi-stage industrial spray washers. This product contains a biodegradable surfactant that is effective in removing all shop soils. K-PW 72 is a low level caustic cleaner that is suitable for use in areas of hard water. This product is NOT suitable for alumimum parts. K-PW 72 effectively eliminates water spotting due to hard water.