Prevents solder from flowing onto contacts, terminals, plated through-holes, etc. during wave soldering. Protects delicate components and prevents contamination during assembly operations. Withstands 515°F (268°C) long enough for wave soldering process. Compatible with all flux systems and cleaning solvents. Dries tack-free in 30 minutes and leaves no residue. Easily removed by hand using tweezers or brush. Can be applied by dip, brush or squeeze bottle. Available in 8 oz. squeeze bottle.