I'm working the tanks and in the process of scuffing the rib lines on the inside of the skins before I start dimpling. Should I also be scuffing the holes on the top side of the skin so the pro-seal will adhere?
Thanks,
Lynn
I assume that's why Vlad posted the photo. Rivets are leaking.
I didn't scuff the outside but did clean everything including rivets with MEK. No leaks. Looking back, I probably would scuff the outside if doing again. I just didn't remember at the time. Like you said, painter will scuff it anyway and it won't hurt.