U-POL Dry Guide Coat Aerosol. A new and effective dry powder Guide Coat in an aerosol, used to expose low spots and any imperfections during surface preparation. Suitable for use with both wet and dry sanding methods. The dry powder is specially formulated to prevent the clogging and blocking of abrasives which is associated with black paint aerosols. This dry guide coat from U-POL dries instantly and is an excellent tool for achieving a flawless repair