SC100 is a mildly alkaline granular compound, designed for heavy-duty soak or ultrasonic cleaning. SC100 soaks away oils, grease, dirt, mill markings, buffing compounds and even finger prints in your immersion tank. SC100 is safe on aluminum, steel, stainless steel, nickel, zinc die castings, copper alloys and plastics. The economical powder quickly goes into solution to provide a long-lived solution for use at moderate temperatures. SC100 will put a protective film on metal surface to protect it from corrosion and is easily removed by rinsing.