Furniture & Other Objects
The sealer and floor finish on your acid stained concrete floor, or stained concrete overlay, is a form of plastic. Most plastics tend to bond together, so you should avoid placing on your floor anything with a plastic or acrylic bottom, such as air mattresses, painters tarps, planters, furniture coasters, and certain types of matting. Otherwise, when these objects are moved, they may take the sealer and color right off of the floor. If you do keep such objects on the floor, make sure to use a fabric in-between, or attach felt-bottomed pads. Products made with cheap or poor quality rubber will also stick to stained concrete flooring, and can leave yellow or brown staining. Quality rubber (e.g., based on nitrile) are generally okay, but they should be tested before leaving them in place permanently.
A special note regarding furniture: The concrete sealers and finishes used for stained concrete flooring are extremely durable - but the hard bottoms, and constant movement, of tables and chairs in a restaurant, office building, dining room, or entertainment area, will eventually scratch or wear through them, if preventive measures are not taken. In such high activity areas, we highly recommend attaching special pads to the legs of all furniture ,and heavy stationary objects. Expanded Technologies in Kenosha, WI, has a great selection of high quality furniture pads. This is a quick and inexpensive way to extend the life of your floor and reduce your maintenance costs drastically.
Also, be very careful of runoff water from plants, which often contains tannins, lignin, fertilizer or plant food. Over time, these trace chemicals will discolor and permanently stain your sealer.
Finally, NEVER EVER apply tape of any kind, for however short a period of time, to a stained concrete floor!!! The tape will pull up the concrete sealer, and concrete stain coloring, when removed. Painters should know better, but they do this all the time. This type of damage is not covered under a stained concrete floor warranty, so you should warn painters beforehand, and/or recover repair damages from them, so you are able pay to have it fixed.