Painting inside of frame rails

I have had exceptional results using Eastwoods inner frame rail paint. It works exactly like they advertise. I have used 6 cans to date on my 74 dart sport, as I used 2 coats in all the frame rails and hard to reach areas. I appreciate how thin the product is so it runs into all the cavities.

Eastwood Internal Frame Coating 14oz Aerosol

I put some weights on the 24" spray tube to straighten it out as it comes wound up.