One floor. One system. One time. When you choose FGS/PermaShine, you get a complete high-performance system of products for polishing concrete floors. Explore the savings, durability, and ease that come uniquely with the FGS/PermaShine polished concrete floor system from L & M Construction Chemicals. We represent the full line of L & M Construction Chemical products; including FGS PermaShine.