damag Rust Converter ULTRA, Highly Effective Professional Grade Rust Repair (1 Gallon)

Seems to work well. Sprays pretty well.

This is my second time buying this now. With the last jug I rust converted the frame on my truck and the frame on my friends 20 ft trailer. It worked great. I'm hoping it kills the rust so that my frames last a lot longer. My second jug is for the second truck I'm fixing up.

it was eating through the paint even after letting it set for three days.

I give it a 4.5. Would be higher if not for the shelf life of the product. Initial supply chain glitch resolved with Paul. Converter works great if used according to instructions on the container ( jug). I did 2 coats 30 min. to an hour apart then a third coat the second day. Turns the rust, metal a dark purple, black colour then after the third dries to almost black. Just be sure to get the loose rust, flakes off (wire brush) before applying. One or two coats of paint and my truck frame looks new. Just be aware, product has a shelf life.

My 2014 Tacoma was developing some rust spots underneath, so I tried this rust converter. It worked amazing well! It looks like milk and does not have any nasty odor. I simply brushed it liberally on the rusty spots on the undercarriage, and within a day or two I noticed the rust was gone. No scraping or sanding required. I also did not bother painting over it afterward as the rust was all surface level and this really took care of it. Unfortunately, I only used about 1 quart of the stuff so I have a ton left over... if it came in a smaller container option that would be great. But still, for the price it worked great and took care of the problem, so I highly recommend.