Sticker Removal

[bforbis]

I use a product called De-Solv-it, contractor's solvent. I am pretty sure it is a citrus based product, but do not have the MSDS sheet to confirm. It appears to be similar to Goof-Off, but may or may not be stronger.
It desolves and loosens any adhesvie, caulk, glues, tar, oil based stuff.

My first inclination would be to try something simple in a trial like vinegar, minerial spirits, Goof off is ralatively easy to find etc and give it some time to soak in and loosen the glue/adhesive. Most stuff I can wipe off or use a plastic scraper with a rag (small areas)

[StainlessDeal]

I've had great success with using Klean-strip Aircraft Remover on vinyl lettering, but be warned: This is harsh stuff, and using it improperly will hurt you.

This stripper when applied to vinyl letters causes them to immediately bubble off the substrate. You will actually hear it crackling and see the bubbles appear before your eyes. Let it dwell until the bubbling has slowed, and grab and peel. Mostly, there will be no residue, but if there is, just reapply a light layer, and it will lift right off. USE PPE! I lightly bumped my knuckle against some spent stripper, and in less than a minute it had raised a blister as well as burning like crazy.

I got it at an auto-body supply house, and it runs about forty bucks a gallon, but two gallons will probably do the trick. Two gallons was enough to strip all the letters from my former FedEx truck, and then to go back and remove the paint down to the bare aluminum.

It is pretty easy to work with and is also available in aerosol cans, but I found that was a little too hot for me, I'd only recommend using it as an spray if you were 100% sure there would be no wind.

You could use this stuff to get right down to shiny metal, but it is controlable enough to take just the letters, no sweat. Nothing will compensate for the lack of fading under the letters, other than fixing the faded finish that was exposed, so the sign will probably still be frefectly legible after you remove the letters.

Feel free to call, if you have any questions. Hope this helps.