I used three $16 cans of the Dupli-Color bed liner spray, one per coat for the three coats.
What I don’t know is how well a gray Wurth Stone Guard would adhere to it. Probably fine, but not sure, and I’m ok with black so will stop burning $’s here.
I need to get the old tank out for the buyer and need the new tank in for an upcoming event at Road Atlanta.