Wash-A-Spacers are designed to accurately lift components off the surface of the circuit board during wave soldering.  After soldering, they simply wash away in the cleaning cycle.  Wash-A-Spacer are made of an unique blend of polymeric material contains no sugars, salts, metal, or soap.  The result is a non-corrosive, non-toxic spacer that will not contaminate the circuit board. Wash-A-Spacers are available in a wide variety of shapes and thicknesses from .025 inches to .060 inches depending on the spacer design.  They are an easy method for meeting the requirements of Mil Standard 275E.