Hello. I’m not sure if I’m right in the section of the forum, if not postpone it. I want to refurbish my Audi 80 B4 Avant. Now it’s about the underbody. At one point there’s good rust. So far I’ve done: extensively scraped everything with screwdriver, brush and fertan pinned on it (for first protection) currently it looks like on the picture. But I’m not really satisfied with it. How do I best do that? Please leads etc ignorant On tools I have: Handbrushes Brush for cordless screwdrivers Scharber For flex disks (unfortunately because of sparks in the tank) Sandblast gun Admittedly, I have never rusted a bottom. My procedure would have been now: Remove rust as far as possible, Fertan on it, underbody protection. By the way, when “pulling” with the screwdriver I didn’t get through anywhere Or are there other / better ways? Thank you already