View attachment 114257 I bought this piece of 1/2" aluminum plate on eBay. It has this pattern on one side, and the other side seems to be just a mill finish. Does anyone know what this pattern means? Thanks, John.
thats how it looks if you leave the plastic cover on to long like a decade or two the aluminium gets stained like that get the sticky off with a solvent then buff with a random orbit and some scotch brite