i would cut the primer open after two good coats with 220 let it get warm out in the sun move some of the thinners out try not to load all the k200 on it at once them after it been warm cool it put one more wet coat on it that should do it ??? i hope for you?? then 320 wet step sand it up to 600 seal it paint it .yes i had i guy that strip the paint off his vette with a steel putty knife GOD what a A$$$$ hole