how to remove light rust stain on plastic sign

[the falcon]

Does anyone have a good way to remove slight rust from the back of a White opaque sign face(lighted sign box). Customer has little money & I am trying to flip sign over and use the back of sign(the front is kinda yellowed). During these tough times, I am trying to help my long time customer save some $$$. If you have a good constructive idea I would appreciate it!
Thanks
the Falcon

 

[Fred Weiss]

Naval jelly is a tried and true product for removing rust stains. To be safe though, test it is a small area and check it the next day to be sure it has not damaged the plastic.

 

[cdiesel]

Try CLR. It's in a grey bottle and can be found at WalMart or HomeDepot. Like Fred said, I'd try it in a small spot first.

 

[the falcon]

thanks

I appreciate the advice man biz is slow

 

[CheapVehicleWrap]

How about Mr. Clean magic erasure?

 

[btropical.com]

We just got some naval jelly our out side car lift needs a cleaning for rust

 

[CheapVehicleWrap]

Eastwood has a decent product for that. Metal Prep I think it's called. It's a blue spray. I've used it on our outside lift too. Don't forget to oil the cables too.

 

[Fitch]

Lemon juice.

Place on the stain, leave for a while, daub off. Repeat until gone.

I had a well rusted stain in the carpet of my boat where someone left an anchor. I bought it second hand so have no idea how long it was there, but half an hour later - all gone.

Cheers - G

 

[daveb]

If everything else fails try a little Bon Ami, if it mires the surface a little buffing compound should take it right out.

 

[John L]

"Greased Lightening" from Sams Club, AutoZone, or many other places. You have to scrub a little, but it works and doesn't ruin plastic or awning fabric.