I recently saw a new driveway that was cleaned improperly and caused a horrible stain. Luckily this problem can me remedied, but it would have been best to prevent the problem all together. So what do you clean your concrete surface with?
If you have a driveway or patio it would be best to use a product like mean grean or tri sodium phosphate. These products are basically high powered soaps. The mean grean would work great if you have some oil spots. One of the best cleaners i’ve ever seen and can be used form more than concrete is Orange TKO . Once you use this product you’ll be cleaning everything including dishes and laundry with it. Before the product dries use a power washer and clean your surface. This should work great. Since you’ve gone through all of the work to get it sealed I would reccommend a water based siloxane sealer. I would reccommend having this sealed by a professional because once you put a sealer down the time to ask questions and try and figure out the whats and whys has passed and you have a nice mess.
DON”T use muratic acid to clean your concrete….Please. You would only use acid to clean if you were prepping it for paint and want to etch the concrete. If you are scrubbing the concrete don’t use a wire brush it will burn the concrete. In the Kansas City environment I strongly reccomment not painting concrete that is exposed to the elements.