Amazing Rust Killer! Ospho

I've been using Ospho since the 1980s. Great product. Great video.

Great video I relaying this to a friend of mine who never heard of this product. We used it in the military on outdood antennae fixtures and it's used in Marine Harvbor on bridges and such.

I can attest to the effectiveness of OSPHO Rust Treatment Formula. My friend and I had a 1/4" piece of Steel that we had bent into an angle bracket for a Trolling motor mount to go on the bow of his 15 foot Bay Scooter that sat right above the waterline. We were in Corpus Christi, TX in the early 90's and in case you didn't know it, the Gulf of Mexico is one of the (if not the highest) highest salt content bodies of water in the world and rust is a huge problem along the gulf coast and especially in marine environments. Anyway, we treated our mount plate with Ospho and let it cure for 24 hours, then we applied a 2nd coat and let it cure for another 24 hours. We then painted the mount plate with some Red rattle can spray paint (might have been rustoleum but I don't recall for sure) and put 2 or 3 coats of paint on it. Now under normal circumstances that plate would have started to rust no matter how many coats of paint you put on it because the salt environment is so harsh it just finds a way to get through, but our Ospho Treated mount performed like a champ for at least 2 years of frequent fishing trips where it was constantly getting splashed with the high salt content water of Corpus Christi Bay area and it never showed any signs of rust. After this I swear by this stuff!!!!!

I love ospho its very useful in automotive rust repair aswell

I used 80 sand paper, cleaned with tsp and then applied Ospho. Can I go back and sand with 220 and apply ospho again?

Very cool! My dad was a builder and decades ago I attended the Chicago Art Institute studying fine arts. Point being, I'm pretty handy and I love architecture. These videos are fun and informative so thank you. I've lived in older homes most of my life which I miss. Love my neighborhood now but I'm living in a 25 yo house. My front door is a nice 8 panel door. It is rusting though and I looked at the replacement cost and want to believe I can salvage it. I have small bubbles of rust rearing their ugly heads, outside. I think the exterior might be due to a brass kick plate that wasn't sealed with caulk. Is this product a good option for my door if it's not too badly rusted? It isn't too noticeable yet, but could be worse than I think under the paint. Thanks!!

Just received this from US, after 2 months waiting for the shipping and can't wait to test it on my van !

Thanks for the video. I have another question. Where did you get the organizer to hold the plastic containers in the background of your video? Thanks

Ospho does work well. I have used it on several old trailers and a lot of old rusty machinery. Just be sure you always paint with an Oil based paint afterwards.

Gloves can be a helpful product when you need to protect your hands.

I’m using this stuff now! I wanted to use it on a air return vent inside my home. Is it going to be toxic after it dries? Do you have to paint over it?

How about patch rusted out spots ! Please !!!

I have best luck if I prime after ospho, then topcoat: it's near enough to painting new metal.

Thanks for the info

wonderful! which black paint you use?

Thank you for posting this video. I have just learned about OSPHO and started searching for some info on line. This is how I found your channel. I am wondering how would you rate this product after almost four years? Thank you. P.S. I live at Neenah and Wellington. ;)

My front door has a rusty hole on the top of it. What should I use to fill the hole once I get rid of the rust? Thank you.

Does OSPHO harm plastic? I’m working on a bathtub and want to make sure OSPHO doesn’t harm the PVC piping. Thanks

Thank you

I have a rusty water pipe in the basement, will this stop the rust or transform it into a viable piece of pipe without having to tear out the pipe with its minor drip? HELP!