No, no. You want to leave the Plastidip as effectively a liquid mask. So I did a rough mask with newspaper and tape, leaving an inch or so around the area I wanted to 'Dip. The paper-and-tape mask is just so you can spray a nice clean border that you remove at the end by peeling and don't have an overspray mist to deal with. I did four coats of plastidip, enough to build up a solid, even coat and an easily pealed border (less spray is harder to remove). Then, before doing anything else, I just did a couple coats of the metalizer, but lighter coats and without the heavy spray to the tape line. Once it was dried I then peeled up the paper and tape, then finally peeled up the Plastidip border which takes care of any metalizer overspray too.
Also keep in mind that the Plastidip coats need to go on heavier than you think. That's how it levels. If you go too light you'll build up a bit of an orange peel texture. It's not bad, like it is in paint, just different. If you want a smooth look you need to lay down fairly wet coats. The best thing is that the worst case scenario is you peel it all off and start over from a clean slate. It's not like botching a paint job that means tons of effort to clean up.
