Rust Prevention

[Stumbling Sober]

There are a few portions of the Mk4 frame (mainly the trunk/fuel tank area) that appear the internal portion of the steel tube is exposed (not welded into another support structure but left open). Is there any need to seal these off so humidity doesn't get into the frame tubes? Between 1) my high humidity summers and potential for road salts in the winter, and 2) my compulsion to protect every inch of exposed steel, I'm trying to get a handle on what is necessary and what is overkill.

[flynntuna]

Eastwood has a internal chassis paint that makes this type of job easier.

https://www.eastwood.com/eastwood-internal-frame-coating-14oz-aerosol.html

[GoDadGo]

This is the stuff that i used; however, I wish I would have looked at the Eastwood products first.

https://www.kbs-coatings.com/Cavity-Coater.html

I've got Eastwood's tubing flare tool and it is crazy cool & super easy to use.

[Mark Reynolds]

you can use finisihing plugs to close some of the openings
http://www.breezeautomotive.com/search.php?search=finishing+plugs

[Stumbling Sober]

Great information Steve and Mark. Thank you!