Wash-Away dissolvable spacers are designed to provide consistent spacing between printed circuit boards and components. These organic polymer spacers locate PCB components during soldering operations. After soldering, they dissolve in water or alcohol solvent baths. Leave uniform spacing between components and boards. Are available in a range of sizes and shapes to accommodate resistors, capacitors, transistors, potentiometers, and ICs. Contain no ionizable material, salts, sugars, metals, or soaps; are non-corrosive, non-conductive, and non-toxic.
Multi-Seals, http://multi-seals.com/wash-away-dissolving-spacers/