Painting inside sills?

[Retro LLama]

Odd question having some rusty sill repairs is there a way to get some paint and protection inside the sills after it’s welded up?  Or would it be a case of getting a drill and a rubber bung gromit 😱! Thanks 

[ZMANALEX]

This works well, tried and tested for over 50 years.

 

https://www.dinitroldirect.com/product/dinitrol-ml

 

You will also require a trigger, and hose extensions + some other bits and pieces.

 

https://www.dinitroldirect.com/product/dinitrol-reg-mazda-ndash-mx5-rustproofing-kit-ndash-aerosol-cans