dont expect the duracoat to make the finish tougher. the softer finish is under so it will be prone to chips and wear. duracoat clear can also lift (burn through) a painted finish. i would try the duracoat clear sealant. you can find sites that you can print your own stencils.if your gonna stay cheap krylon matte clear works well. i just wouldnt expect the duracoat clear over krylon to help toughen the whole finish. you really need to use duracoat on a alum oxide sand blasted or parked gun for it to work well.