I did the complete undercariage of my car last year. Did it with scrapers, wire wheels of many assorted shapes and sizes. Then primered the metal, painted 2 top coats, and then undercoated it. Looks great, but you will find out it's one of the BIGGER pains in the #@%&
I put a box fan behind me to blow the dust and debris away from me.
Tom
I put a box fan behind me to blow the dust and debris away from me.
Tom