Primarily Petroliana Shop Talk Forums Shop Talk Petroliana Forums General Petroliana Discussion Porcelain Sign Cleaning Nightmare..HELP!!!

Unlike similar abrasive cleaning products, such as Comet and Ajax, Bar Keepers Friend uses oxalic acid as its active ingredient.

The WD40 will not make a permanent change in the sign. It is useful to remove oxidation and does leave a nice shine. I have heard of using it with a very fine steel wool to remove rust as well. (I have not done that experiment though.)
I have rubbed down my truck with a microfiber towel and a touch of WD40 then used a clean microfiber towel to buff it out. (I have heard that car detailers use this trick) It does make a great shine, beads water like crazy, but does eventually wear off.

WD-40 WILL MAKE DUST STICK LIKE CRAZY!!!!

A auctioneer friend of mine uses it on old tractors and junk to make them sell. But when you get the stuff home it is really dusty. LOL.

Wise man Once Say: Once gloss is lost..it's lost...

I thought I was the only one who had a problem with bar keepers. So I never posted on here. I destroyed two Contains Signs and something else by leaving it on the surface for a while, oh it was a red porcelain star. I threw that stuff out. I will never use anything but rubbing polish and wax...

I went and looked at a sign at auction and when I touched it I got oil on my hand. found out from the buyer later he keeps putting W-D40 on it because it keeps drying out is not glossy any more. W- D 40 just short term.