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Posted By: tallgrass Best way to clean crud off of signs - Fri Jan 03 2020 06:21 PM
I just acquired a 10' x 1' porcelain Standard Oil Company sign that was buried in dirt for the last 30-40 years. There is minimal rust, but a lot of "crud" from being buried for so long. I have been washing with soap and water, but some of it is really stuck on. I currently have it covered with damp towels to try to soften the crud.

I thought about using my power washer, but don't want to mess it up.

Any ideas would be appreciated.
Posted By: SandPCollector Re: Best way to clean crud off of signs - Fri Jan 03 2020 06:52 PM
Welcome to Oldgas. Here is a thread regarding the cleaning of porcelain signs. You might try the search button for more assistance. Good luck!

http://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Number=739443&page=1
Posted By: UpnorthNeil Re: Best way to clean crud off of signs - Fri Jan 03 2020 09:08 PM
Take some pictures along the way and see if there are stains on the back side that will provide a preliminary test site for what ever you decide. I have had luck with stripper on paint and oven cleaner on stains IF the sign is porcelain.
Posted By: tallgrass Re: Best way to clean crud off of signs - Fri Jan 03 2020 10:38 PM
I used a google search after I asked and found several threads on here. Barkeepers Friend and a scotch brite pad are doing a good job.
Posted By: Gas Pump Rob Re: Best way to clean crud off of signs - Sun Jan 05 2020 03:31 PM
Please post a picture of the sign if you can.

Rob
Posted By: advertologist Re: Best way to clean crud off of signs - Sun Jan 05 2020 05:22 PM
Originally Posted by Gas Pump Rob
Please post a picture of the sign if you can. Rob


.. ... cool

http://www.oldgas.com/forum/ubbthreads.php?ubb=showflat&Main=128516&Number=741673#Post741673
Posted By: Stephenwarren30 Re: Best way to clean crud off of signs - Mon Jan 06 2020 01:03 PM
Zud is really good on porcelain.

Attached picture 07DA74E3-CCFA-4FDA-849A-1D4D4BCED418.jpeg
Posted By: AndyVH1959 Re: Best way to clean crud off of signs - Mon Jan 06 2020 11:16 PM
How about a little bit of Comet cleanser, water from a spray bottle, and a fine grade 3M pad.
Posted By: tallgrass Re: Best way to clean crud off of signs - Wed Jan 08 2020 03:29 AM
After cleaning my sign I think elbow grease is the most successful.
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