QUESTION

Saltillo Tile How to Remove Spiderweb like stains - we have glossy Mexican saltillo pavers in our kitchen- 15 yrs old - they now have black "spidery" lines all over each tile - assuming from basic scuff marks & scratches from chair legs, etc. they look terrible! how do I get rid of the marks without hurting the glossy finish? I tried Mr. Clean magic eraser & it worked somewhat, but it took off the finish so I stopped.

ANSWER

ANSWER - Chances are the spider web black stains are due to the shiny surface sealer having micro cracks and dirt has collected within it.  It is possible that the sealer can get warm and flow, and perhaps lock the stains within the sealer.

First try test cleaning a small area with a neutral based cleaner and scrub brush.  Be careful not to scratch the sealer.  If that doesn't do it then you will likely need to strip the sealer and then reapply the sealer.

First check with the company who makes the sealer for their recommendations.  If you don't know the brand or type of sealer then go to our website at www.CTaSC.com to Expert Answers to find Resources and click on Cleaners and Sealers for a list of manufacturers with links to their website.
Good Luck.