How to prep roof for paint?

Here is what I use for auto body seam sealer, a bit spendy but so are new body panels.

Can apply in your drip edge seam about 2' at a time, wipe quick once with a wet finger. If you over work it it will ball up on you. Sets really fast so you have to work quick, let dry 24 hrs then paint.

Clean up with enamel reducer.

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