As a Luthier (stringed instrument building/repair), I, and my fellows, are always on the lookout for SOMETHING that will perform "Drop-Fills", and repairs to dings in finishes. Well, this is it! After a moment of carelessness (less than a moment?) in the Buff-Out process with my 14" Stationary Buffer, I went too far over the edge of a fingerboard, which yanked the instrument (a PRS, no less!) out of my left hand, and sending the tip of the guitar's headstock to my un-rubber matted concrete shop floor. Having tried to do similar (customer caused) repairs in the past, with various mediums, including "SOLAREZ" (another UV curing product), I have had limited success, particularly when attempting to "build up" a chipped out corner area. Well, I FOLLOWED INSTRUCTIONS, and was completely satisfied, and impressed with the stunning result. Yes, it sanded beautifully - #320, #400 W/D, #600 W/D, #1000 W/D, and buffed out fabulously with rough, and finish grades of Menzerna buffing compound (again using the infamous 14" Buffer)! WOW is all I can say! I have more (5) replacement cartridges on the way from AliExpress for .99 cents each, free shipping, but will have to wait up to 2 months for their arrival! I dread running out before then, but will have to "bite the bullet" and buy locally ($$$), because I don't want to be without this stuff in my shop. Thanks, Happy Camper George!
Bottom Line: Yes, I would recommend this to a friend