Green Coast Environmental is an US based company that specializes in a unique liquid Quartz Nano- Technology and has a line of superior coatings and sealers for metals, stone, and concrete.The technology is very inexpensive, up to 1200 per square foot coverage, defers maintenance and requires almost no prep work saving labors costs substantially.The coating comes in gloss, matte and has the possibly of endless colors with the addition of a specialized pigment.