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Location: Dallas, Oregon | Hello everyone. I am new here and well, my husband and I bought our first (used) horse trailer about a month ago. It has some rust on it and I am really needing to know what everyone has used, why and how it worked?? We have bought rust mort and I am not sure how well it is working. When I go online I see things like corroseal and it is totally different than this rust mort. I am thinking maybe I need different ones in different areas. Like around the frame of the rear of the trailer I am thinking something that you can paint on a leave and its good to go, but on the parts I want smoothe the mort will probably be ok. Ahhhhhhhhhhh, help please. |
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Expert
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Location: western PA | Phosporic acid is the main ingredient of many traditional rust converters. Ospho is a long time used standard. Most converters have to be over painted after the metal is treated. They should not be compared to the fish oil paints that cover the rust. Whether it is a water based or acid product, they chemically change the rust into an oxide. This stops the rusting and acts as a primer. A paint product that allows air and moisture to reach the metal, will not stop the further rusting of the metal. This is manifested by the bubbles of rust under a paint's surface, that can grow and expand into a localised failure of the metal. Ospho has been used for decades in the aircraft and automotive industries. It works well and is nominally priced. |
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Member
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Location: Dallas, Oregon | Thank you I will research that. |
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 Veteran
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Location: Florida | Gemplers sells a rust convertor that converts surface rust to a black primer that can be painted. Works very well. Can be brushed on or sprayed. I use it frequently. You just have to remove any scale or loose rust.
Edited by PDGx 2013-02-03 9:42 PM
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Location: Dallas, Oregon | Thank you, I will research that also. |
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New User
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| There is a product on the internet that boasts it will remove rust and convert it... I am now sanding down my newly purchased horse trailer and it has three bad rust spots- two down to the frame. I put naval jelly on it, and it did little. I put the jelly all over the tailer and the surface rust comes off with this but not the heavy rust. According to my auto body guy, there is no product that will remove bad rust, you have to sand it or sand blast it off. The big flakes will come off with naval jelly but not entirely. So you have to sand it down till the shiny gray metal shows around the rust spot so the new paint will adhere.Then he said to sand all of it, primer it and then clean it before you paint it. According to him rustolem paint by the gallon is the best, rolled on. |
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Member
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Location: Dallas, Oregon | Thank you. This seems to be what we ended up doing so far. We have used the rust mort in the bad areas and it seems to turn it black, which is the conversion. But for most part my husband is using a wire cup wheel and taking it down to metal. How is yours coming along. Any details you would like to share??? Words of encouragement? I feel like I am half a$$ing it in some ways because its not "perfect" but to spend that type of time and money we may as well have went new, ya know. I am hoping it will be nice for us for some years to come. |
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Expert
Posts: 5870
Location: western PA | Any loose rust should be mechanically removed; the converter will not do that job. The converter should then be used before any paint is added. This converts any rust that sanding or the mechanical abrasion did not remove. The black results after the treatment, is an oxide that will act as a primer for any further coatings. It is in itself not a primer, and will not stop any further rusting, so it should be over coated with a good primer and a final paint product. Completely stopping the rust with a converter, will greatly lessen the chances of any further rusting of the treated areas. If it is not applied, you may be greatly disappointed with the final results in a short time. |
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Location: Dallas, Oregon | Thank you! |
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Location: Chimacum, WA | I bought a new trailer, built here in the PNW that had a very bad paint job. The metal across the back area, behind the floor rusted badly (but not before the roof paint came off like fall leaves flying off the back of a flat bed). I wire brushed that back step up area, painted it with Ospho, and used it that way for two or three years before we had it repainted. Even with the urine, shod hooves striking it when loading and unloading, the metal did not rust. I don't recommend anyone not painting over the treated area, however, for us, it worked. I think it is great stuff. The trailer was routinely stored under a "loafing shed" for vehicles, so it was out of the rain, which I am sure made a big difference. BTW, I'm glad that trailer company is no longer in business. You also don't see very many of their trailers on the road or sitting in anyones yard. They must have not lasted very long. Bonnie
Edited by Coolie Chick 2013-02-12 3:15 AM
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Member
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Location: Dallas, Oregon | Anyone know where I can find this Ospho in Oregon? Or if its the same as the rust mort I am using??? Thank you Bonnie. |
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Expert
Posts: 5870
Location: western PA | http://www.ask.com/web?q=where+to+buy+ospho&askid=25887dd1-e00b-4b47-a1c4-e28f694ee458-0-us_gsb&kv=sdb&gc=0&dqi=ospho%2520home%2520depot&qsrc=999&o=2830&l=dir |
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Location: Dallas, Oregon | Thanks! |
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Location: Chimacum, WA | We bought it at either an Auto Supply, or a hardware store. I'm not sure which it was as it has been a while ago. My son used the rest of the quart I bought to treat the outside of a rusty fuel tank he was putting in one of his many... um... very used vehicles. <smile> Bonnie |
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Rust Converter........... Need Help
