Rust inhibitor undercoating help
 

Posted this in the body / paint section, unfortunately did not get much feedback.

Finishing up on an extensive roof restoration on our 64: replaced the above windshield panel as well as restored the drip rail troughs and tops of A pillars.
All areas where preprimed with weld through primer but what is a good choice for undercoatting / rust inhibitor in these areas? I am considering 3M 08892. Has anyone utilized this product? Any advice suggestions are greatly appreciated. Thank you, Todd

Re: Rust inhibitor undercoating help
 

Bmp

Re: Rust inhibitor undercoating help
 

Any good cavity wax will do the job in those areas (between the roof panels).