After grinding concrete for more than 30 years we have added polishing, dyeing and applying hardeners utilizing L&M's FGS/PermaShine system. This is a licensed, patented, dry concrete floor polishing and rejuvenation system. It is available exclusively through L&M Construction Chemicals, Inc and its selected network of applicators. We have put together a 120 square foot sample at our shop. This sample area has polished concrete to 3,000 grit and five different dye colors. Please stop by whenever it is convenient to view the sample area and give us your feedback.