Question: I have oil or grease on my floors. Do I need to clean it and how do I get it out?
Answer: Oil and grease needs to be removed for the acid to properly penetrate the cement. Use Tri Sodium Phosphate and a buffer to get the oil out of the foundation. You can also soak the area with Mean Green or another degreaser. Just avoid using anything with acid in it for cleaning.
Question: How do I get sheet rock mud or paint off of my floors before staining.
Answer: Get a floor scraper which is basically a steel blade on a pole and scrape the mud, paint, etc.. off the foundation. Spray some Goo Gone on the residue to loosen it up and then scrub. The rest should come up while you are scrubbing with the buffer.
Question: My finish is hazy. What happened?
Answer: Moisture trapped in the finish will create a haze. To prevent this make sure your coats are not too thick. Also, once you put down some finish do not go back over areas that have started to dry. To get the haze out you can try buffing the finish or you can apply some stripper and strip off the top layer and reapply the finish.
Question: What do I do if areas will not take the color from the acid?
Answer: In limited situations certain areas of your floor may not take the color the way you would want it to. You can try using the acid full strength. If that does not work then you can use standard waterbased stains. Mix a couple of colors together if you need to. The goal is to try and match the color. Apply sparingly in coats until you have a good blend the seal and apply the floor finsh.