Learning as I go

K

Keith Richardso

New member
Hi everyone! I gave a demo to a potential customer that owns a local liquor store. His store has a bus stop in front of it, so there is a lot of foot traffic in the area. Along side his building it looks like he had a concrete job not long ago. There are alot of black spots on the concrete, so I naturally thought it was gum. The top layer came off but still left a dark spot. I was confused about why there is still a black spot on the pavement. I figured it out that those black marks were from tar droppings. Do anyone have any suggestions how to get the concrete, that looks relatively new back to its original state. Is there a chemical that could get rid of these black tar droppings. All suggestions are welcomed and appreciated.

Thank you,
 
I have a customer that had a paving truck drive over their curb, leaving tar-coated tire tracks. Each cleaning, I use degreaser and hot water, and it is fading. I suppose that paint thinner would also do the trick, though I don't think I would use it.
 
ron p

they are called " gum ghousts" oils from the chewing gum sink into the cement.
Try what STEVE suggested and also run a search on this site about gum. YOU WILL NEVER GET THE CEMENT TO LOOK LIKE THE DAY IT WAS POURED UNLESS THEY USED A SEALER/CURE AND THEY NEVER DO. [ALL MOST NEVER] the more you wash it the better it will look
 
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