Rust remover / converter
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Rust remover / converter
Evening all, when i was cleaning the car at the weekend, i noticed an area close to the underside of the car (the area where the paint is really thick) where rust is starting to form (it looks like I've managed to scratch the paint off, allowing rust to form).
Can anyone recommend a good rust converter or remover that I'll be able to use to sort it out? I'll then get a touch up kit and hopefully be rust free!
Cheers!
Andy
Can anyone recommend a good rust converter or remover that I'll be able to use to sort it out? I'll then get a touch up kit and hopefully be rust free!
Cheers!
Andy
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Joined: Oct 2005
Posts: 2,589
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I use Jenolite which is:-
Scrape back to show all the rusted area, apply and rub with small wire brush, leave to work. Wipe off re-apply.
Use a scribe to scratch into any pitting to allow the acid to do it's work. When the area is totally silver metal apply primer & paint.
Don't leave any discolouration or it will come through again.
I use a Dremel tiny wire tipped brush with the acid, works well.
Jenolite is also available as a gel for vertical surfaces.
Rust removal
Phosphoric acid may be used as a "rust converter", by direct application to rusted iron, steel tools, or surfaces. The phosphoric acid converts reddish-brown iron(III) oxide (rust) to black ferric phosphate, FePO4.
"Rust converter" is sometimes a greenish liquid suitable for dipping (in the same sort of acid bath as is used for pickling metal), but it is more often formulated as a gel, commonly called naval jelly. It is sometimes sold under other names, such as "rust remover" or "rust killer". As a thick gel, it may be applied to sloping, vertical, or even overhead surfaces.
After treatment, the black ferric-phosphate coating can be scrubbed off, leaving a fresh metal surface. Multiple applications of phosphoric acid may be required to remove all rust. The black phosphate coating can also be left in place, where it will provide moderate further corrosion resistance. (Such protection is also provided by the superficially similar Parkerizing and blued electrochemical conversion coating processes.)
Phosphoric acid may be used as a "rust converter", by direct application to rusted iron, steel tools, or surfaces. The phosphoric acid converts reddish-brown iron(III) oxide (rust) to black ferric phosphate, FePO4.
"Rust converter" is sometimes a greenish liquid suitable for dipping (in the same sort of acid bath as is used for pickling metal), but it is more often formulated as a gel, commonly called naval jelly. It is sometimes sold under other names, such as "rust remover" or "rust killer". As a thick gel, it may be applied to sloping, vertical, or even overhead surfaces.
After treatment, the black ferric-phosphate coating can be scrubbed off, leaving a fresh metal surface. Multiple applications of phosphoric acid may be required to remove all rust. The black phosphate coating can also be left in place, where it will provide moderate further corrosion resistance. (Such protection is also provided by the superficially similar Parkerizing and blued electrochemical conversion coating processes.)
Use a scribe to scratch into any pitting to allow the acid to do it's work. When the area is totally silver metal apply primer & paint.
Don't leave any discolouration or it will come through again.
I use a Dremel tiny wire tipped brush with the acid, works well.
Jenolite is also available as a gel for vertical surfaces.
Thread Starter
Registered User
Joined: May 2009
Posts: 2,383
Likes: 0
From: Liverpool
Cheers guys. I think i'll try this Jenolite stuff (had seen stuff by Dinatrol too) first. If that fails, then i'll go find myself a dremel and go about sorting it that way.
Andy
Andy
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