Ospho2-Pack 605 Metal Treatment

Great for rust treatment

Used on an aluminum boat, works great. Aluminum came out shining with no more than spraying on, letting it sit 20-30 minutes, and washing off.

It works! Best rust encapsulater and prep for paint I've used. Just spray it on and let it soak in and dry.Works great for cleaning up frames and undercarriage of old trucks and cars.

I love this stuff. Does the job and easy to apply. I usually put in spray bottle and apply. I have purchased before and will continue to purchase to help fight rust.

I ordered two quarts and only used about one pint on the rusty keel of my sailboat. Ospho goes on like water and has a rapid effect on existing rust, turning it to black iron phosphate, and blocks any new rust. After letting it set overnight, I started with the barrier coat (Interlux Interprotect 2000E) using three coats and followed that with three coats of Micron CSC ant-fouling paint. Once the boat goes back into salt water, we'll know if that sequence of materials was successful. If it isn't I have enough Ospho left for 7-8 retreatments.

I have been using OSPHO since the 80's. Have not found a better product dealing with rust.

Well, the stuff works fine. But I bought the two pack and only received one bottle. I’ve sent a couple of emails with no response. Seriously?

worked as expected...