CARE & MAINTENANCE OF PORTSTONEThe daily care and maintenace of PortStone is really very easy. Simply dust mop or damp mop as needed. We do not recommend the use of harsh cleaners such as PineSol or vinegar and water. These will act as strippers and remove the protective floor finish coating. Clean water is best, but if you feel you need to use a cleaner, it is best to use one that is pH neutral to prevent the removal of the floor finish. The Home Depot carries a product such as this manufactured by ZEP very creatively named Zep pH Neutral Floor Cleaner.We recommend that every 6 months or so, one or two coats of a PortStone approved floor finish be applied to help keep your floor looking fresh and new. This is a very easy process, just clean the floor thoroughly then apply the floor finish using a rayon mop, lambswool applicator, or paint pad. If you use a mop, be sure that it is a 100% rayon mop and not a cotton mop nor a cotton/rayon blend as these will leave lint in the dried floor finish.Be very careful when using a rug with a synthetic backing over PortStone or many other floors that are finished with an acrylic floor finish. The chemicals used in some rug backings will react with the sealer and floor finish on PortStone and many other flooring materials leaving a definite print of the backing imprinted into the floor's surface. The rug can literally pull apart leaving bits and pieces of the backing firmly attached to the floor. In many cases, this imprint cannot be completely removed and removing any part of is it very difficult. The only real cure is to completely remove the affected area of the floor and replace it with new PortStone material. Not all rug backings will do this, but the safest policy is to only use rugs with no backing.The floor shown above is obviously not a PortStone floor, but it is a good example of what can happen when a rug pad sticks to the floor. Vinyl and PVC rug backings are the worst culprits for this. Be sure to put rubber tips or felt pads under all table and chair legs. PortStone is very durable, but chips can be caused by tremendous stresses by a chair leg being pushed back against the edge of a brick when the foot of the chair is lodged in a grout joint . PortStone is very durable and long lasting. Just treat it as you would any fine floor and you should get many years of trouble-free enjoyment from it.