3M Bondo Self-Adhesive Body Patch, For Large Rust-Outs and Damaged Areas, 2 Patches, 5.9 in x 5.8 in, 2 Patches

Great idea, adhesive is rubbish so you need to use other ways to fasten it. Not worth the cost.

worked really well for a complicated repair. still holding up 5 years later

Flexibel und leicht anzuwenden, da es eine selbstklebende Stelle hat. Ich hab das Stück verwendet um Insekten zu hindern, dass sie das innere vom Fenster weiterknabbern.

Let’s be real. If you’re dealing with rust this bad, you’re probably in for some frustration. A full repair usually means cutting out metal and welding in a new piece, which isn’t exactly a casual weekend project. Enter these Bondo Self-Adhesive Body Patches. Without them, my repair simply would not have been possible. Stronger Than You Think (With the Right Filler) If you’re worried about durability, don’t be. When paired with a high-strength filler, this patch doesn’t just “hold up.” It reinforces the repair to the point where it’s as strong, if not stronger, than sheet metal. The patch gave me a structure to work with so I could push filler deep into the area, making the final result solid. If you’re using the right products, this isn’t just a temporary fix. It’s a legit repair. Adhesion Could Be Stickier, But It Works The patches do have an adhesive backing, but I wish it had a bit more grip. Something a little gooier would have made placement easier. If your surface is less than ideal, and mine was far from perfect, you can still make it work, but you’ll have to finesse it. One trick is weaving multiple patches together to reinforce the structure before adding filler. Will This Work for Your Repair? My rust spot was massive, probably pushing the limit of what this product was meant for. Almost too big, but not quite. Ideally, you catch rust sooner than I did, but even for larger areas, layering multiple patches can absolutely work. That said, placement matters. If your rust is in an area that’s impossible to place a patch on properly, you might have a problem. But since these are super cheap, it’s worth buying some just to see if they’ll work for your repair. Worst case, you’re out a few bucks. Best case, you avoid welding and a massive repair bill. Bondo Compatibility is Perfect The Bondo stuck to this like a dream. I was able to layer it on smoothly and even push it deep into the problem area for extra strength. Without these patches, there would have been no way to make this work. Final Tips & Thoughts • Reinforce by weaving patches together. This helps create a stronger structure. • Test fit first. Since the adhesive isn’t crazy strong, positioning is key. • Use a high-strength filler. Regular filler alone won’t be enough. (I reviewed the one I used, so check my profile if you need recommendations.) For small-to-medium rust repairs, this is a game-changer. For bigger spots, you’ll have to get creative, but with patience, it can work. If I managed to pull this off with zero experience, trust me, you can too.

Easy to cut and relatively simple to shape to fit. Very stiff screen. Holds bonds well. Cuts easily with a scissors.

For a metal repair of a large hole this works very well. The mesh is all metal and easily cut with regular scissors and moldable by hand. There is a sticky side which is somewhat adhesive. It will hold its own weight since these patches are not heavy but if the patch is suspended it may not hold depending on the surface. These patches overlap very well for larger holes. Once applied these are strong and if blended with metal-filled bondo then its very strong. I used a sharpie marker to trace a contour and that worked well. You can even use this to make curved shapes as a base for filler. These work well as intended. The adhesive is only there to temporarily hold it in place for the bondo filler. Just like fiberglass mat, its not meant to be used on its own.