I recall trying to do over the spatter paint in my '64 SS. The paint was still sticking quite well, but it was filthy. I tried cleaning it and it didn't work out too well. I sanded and scrapped it. I then sprayed the spatter paint. I don't know how many cans I sprayed, but nothing seemed to cover. Everything bled through and it wouldn't dry properly. What a mess I had big time. I don't know what went wrong, so I used a bunch of rags and cleaned off all the spatter paint. Sanded and washed the surface again. This time I applied 2 coats by brush of a Rustoleum light gray oil based paint. After completely drying, taped everything off a second time and sprayed it again. What a great result; at least for me. The Rustoleum was a great base and I think I only used 2 cans of spatter paint. I then topped it with a satin clear. It looks real good and to this day, nothing has bled through. I liked it so much, when I put in a new bottom trunk section of my '62, I used the same procedure with the same result. I'm not suggesting anyone should do this or it's the proper way, but it worked well for me, Carmine.