DIAMOND ULTRAVIOLET LLC- THE CHEMICAL COMPANY BEHIND UVARNISH! Diamond Ultraviolet LLC was founded by Jim Avdoulos, CEO in 2011 with the intent of introducing the latest advancements in UV curing technology to the flooring industry. As the first and only company to pioneer the technology exclusively for the flooring industry, Diamond Ultraviolet LLC introduced UVARNISH™, the most advanced line of UV cure coating products ever designed which caught on rapidly and eventually bacame Diamond Ultraviolet LLC's flagship line. Diamond Ultraviolet LLC quickly advanced to become North America's number one source for UV cure coatings for concrete.