X-FILL is a specially formulated filler designed for use with TACGLUE premium glues. Instead of a powder, X-FILL consists of tiny metal spheres. Also known as a high intensity welding powder. Use much like a solder or weld joint .This new compound means a stronger end result, easier cleanup, and for the first time ever, a filler that will work with our gel formula. Fix automotive parts ( these include radiator, dash repair and virtually any plastic component), rebuild, restore: (build or replace a missing area that is broken or damaged, use as a re enforced filling material on a multiple of applications. Will work on all materials: wood, ceramic,tile,metal, etc. Drill, sand, tap, or paint when done. Material can easily be manipulated or formed to replace virtually anything.