Pick up door rust

[bassphish2005]

I have a 1999 F-150,and the inside bottom of the door is starting too rust,driver door is worse with more than just surface rust.

what can I do/use too

A.Stop and treat the rust

B.Fill the area before I prime and paint.

Thanks guys....

[LindellProStaf]

Hi bass. I have been watching your post hoping for some info from someone. I also have a 99 Ford with the doors rusty at the bottom. I had a body shop fix them 2 or 3 years ago. He said it would only last a year or two. Well they are rusty again. I guess it is common. I talked to the local body shop and he said to use a wire brush on a 4" grinder or a drill and clean it up as good as possible. Then prime it with good quality primer and them just spray it with a can. My truck is white so no big deal. I will be doing mine in a few days. I have wondered if that black stuff that is supposed to beat rust works. I have seen it at parts stores.

[spearchucker]

Mine is doing the same. Not sure if the black stuff would help unless you completely get all the rust off before applying it. Also it may be rusting from within.