Adam, the link to Competition RC is in my signiture, this is the US importer for their products. The link to their normal website is
www.gqproduct.com . You must wipe them off after spraying. The way I do it is, spin the fronts and juice them with lighter fluid, dont touch them. Do the rears the same. Move back to the fronts and wipe them off. I just use a rag and go from the inside of the tire to the outside while spinning the tire in the rag. Once both the fronts are done, then do the rears.