I was introduced to a product last year called Cement Off. Its made by Titan Labs. It is by far the best stuff I have seen for concrete and mortar. You apply the product let it dwell and it basically turns the cement to the equivalent of a spit wad. It is very safe stuff and wont harm surface, it only attacks the cement agents. We used it on painted concrete block that had concrete splatter on and it was the trick and didnt harm the paint at all.
It is a must have for CCU. Chris should give Harv a call as they have it and can sell it to WCR.
