I ve found the best all round rust removal tool is a twist wheel wire brush for an angle grinder.
Rusty van roof.
To stop the rust on the rest of the roof where there were 6 8 patches of minor surface rust we brushed por 15 on then sanded it down with 400 grit sandpaper once it was dry.
Sand the roof lightly with 200 grit sandpaper to remove some of the rust and to prepare the roof for step 2.
First thing i d do is surround the rusted areas by several layers of durable masking tape so as not to damage non rusted finish along with an equally thick couple layers over the top edge of the window glass then scrape the bubbled paint away and sand with multiple grits of sandpaper say 80 150 grit.
Here are their responses.
Rust repair isn t hard but it is time consuming mostly waiting for primer and paint to dry between steps.
Use a coat hanger or pipe cleaner to make sure the holes remain open.
Plan to spend about 100 on supplies like sandpaper primer masking tape and poly sheeting a tack rag polishing compound and touch up paint and clear coat.
We brushed ospho rust treatment onto the remaining surface rust near our repair area.
Ospho neutralizes rust turning it into paintable black primer.
Be sure to look in non obvious places.
Inside the van the footwell steps wheel arches behind the dash and under any old plastic trim or flooring for example.
This problem is particularly acute on minivans and large vans.
Ford connects have usual rust issues around the sills and on the rood i have already done the sills in another video on my channel so now it s time to get the roof rust sorted before the van goes.
Rust hiding behind the panels caused by leaks in the roof gutter firstly to uncover the surface rust on the van s body i looked for brown marks bubbles under the paint and flakes.
Check for water leaks.
It takes a lot of time and elbow grease to remove rust on a van but having the right tools really helps.
Apply a product like rhino liner herculiner or rust oleum truck bed liner to the roof.