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Old 05-25-2013, 07:44 AM
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Silica sand & water

Guy I know at work claims that he mixed plain silica sand with water and applied the paste to a semi-rusty bumper and repolished it to a clean shiney finished . Anyone know , or ever tried this ? What was your end results ?

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Old 05-25-2013, 08:03 AM
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super fine grit. ?

polishing compounds are usually a fine grit mixed in a paste wax. If your sand was course you might get scratches. Chrome is hard, but I would try it on scrap pieces. polishing compounds are cheap compared to buying a new piece you mess up.
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Old 05-25-2013, 08:06 AM
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Originally Posted by timothale View Post
polishing compounds are usually a fine grit mixed in a paste wax. If your sand was course you might get scratches. Chrome is hard, but I would try it on scrap pieces. polishing compounds are cheap compared to buying a new piece you mess up.
Polishing compounds , are you referring to rubbing compounds ? Or polishing compounds in general ?
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Old 05-25-2013, 08:07 AM
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Aluminum foil and water works great for cleaning surface rust from chrome. I just did this after a long hard winter on my daily driver. Hit it with some chrome polish afterwards to help give it some extra protection.
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Old 05-25-2013, 08:19 AM
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Aluminum foil and water works great for cleaning surface rust from chrome. I just did this after a long hard winter on my daily driver. Hit it with some chrome polish afterwards to help give it some extra protection.
Ok , I can see the extra protection part by using the chrome polish part . My next question is : If the rust is present isn't that deteroation (sp) down to the metal that's chromed ? If so can anything be used or than rechroming for protection i.e. clear paint ?
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Old 05-25-2013, 09:17 AM
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I wouldn't paint chrome. If it's going to rust again after polishing it will eventually rust under clear too.

Your best best is to polish it out and see what it does. The aluminum foil is supposed to leave an oxide film when you buff helping to stop the rust or something like that. If it keeps rusting I believe your only other option is re chroming. Or it might be that you have to only buff it occasionally. Just try it and see what it does.
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Old 05-26-2013, 07:16 AM
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Ok , I can see the extra protection part by using the chrome polish part . My next question is : If the rust is present isn't that deteroation (sp) down to the metal that's chromed ? If so can anything be used or than rechroming for protection i.e. clear paint ?
For rusty chrome bumpers I've used Brillo pads (SOS),(the kind with sap in them) with great success use a protectant or it'll come back...
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Old 05-26-2013, 07:46 AM
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Originally Posted by Shorty Thompson View Post
Guy I know at work claims that he mixed plain silica sand with water and applied the paste to a semi-rusty bumper and repolished it to a clean shiney finished . Anyone know , or ever tried this ? What was your end results ?
In cases like this I have found that most of what looks like rust is just rust stain thats coming from a small spot, and this is why the scrubbing and polishing cleans it up, although there are probably many small spots and they are growing larger.
So I use something like ospho to desolve all the rust, and it will look amazing afterward without any of the scrubbing scratches. Then put protectant polish on and keep it polished for protection.
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Old 05-26-2013, 08:00 AM
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For rusty chrome bumpers I've used Brillo pads (SOS),(the kind with sap in them) with great success use a protectant or it'll come back...

SOAP,not sap...
I know ospho worksreally good for getting rust stains out of a cement driveway...never thought of using it for bumpers..
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Old 05-26-2013, 08:37 AM
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The phosphoric acid in ospho desolves rust and thats why it takes so long. Its also the reason that agitation works so good with it because the agitation is removing some rust that now doesn't have to be desolved. I also use a pick for the deeper pits in sheet metal to make it quicker.
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Old 05-26-2013, 09:00 AM
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In cases like this I have found that most of what looks like rust is just rust stain thats coming from a small spot, and this is why the scrubbing and polishing cleans it up, although there are probably many small spots and they are growing larger.
So I use something like ospho to desolve all the rust, and it will look amazing afterward without any of the scrubbing scratches. Then put protectant polish on and keep it polished for protection.
Ok , so where would I get " ospho " at ?
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Old 05-26-2013, 09:21 AM
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Amazon.com: ospho rust treatment
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Old 05-26-2013, 09:30 AM
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Thanks !
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Old 05-27-2013, 06:27 AM
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Sounds like chevymon's been using this a while....I learned something today.
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Old 05-27-2013, 09:36 AM
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I believe I am going to be giving your methods with Ospho a try on my truck cab Mike. It looks pretty rough out there, poor thing.

Brian
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