Wanted to share with the group my efforts at Plastidip on the Flex; originally was hoping to have a more metallic appearance using the metalizer - closer to those Flex's that have the strip across the back, but it didn't turn out so as I hoped (would require many, many coats), plus the good lady of the house (who's car it is) said she didn't like the end result so may take it off shortly... but will consider it for my own.
First claybar, then Meiguars paint cleaner, Polish and then using blue painter tape and plastic sheeting, sprayed 4 coats of plastidip black - to keep a good line at the base, I didn't spray too much there until the end where I applied a heavy coat and then removed the tape (otherwise it can shred the neat line as the paint sticks to the tape). Waited a couple of hours for that to cure then applied 4 coats of Metalizer (almost the entire can).
1. Getting a striped effect (aka spray lines) is really easy to do so do watch out your technique
2. The metalizer can be harder to get an even finish, so do go slowly
3. To be closer to the OEM paint effect, miss the top section of the panel - align with rear lights. Oh well - still liked it...