You are correct, Newbie. In the early 1970s, I developed the materials and process for tiling fiberglass. I installed tile for Caldera spas, Cal Spas, Dimension One (Spa Store at the time) and about 12 spa installers. I was based in El Cajon California. In 1973 I got a call from San Juan in Hemet California. They wanted to subcontract tile installs on their pools. Every check they gave my, came from a corp. I don't remember the name. I think it was 1975 that George Sullivan and group bought the company. I installed tile for them until the 1980s, I traveled to Lakeland Florida and helped set up their tiling facility. They filed a bankruptcy in the 1980s. Of course, I stopped installing for they.
George Sullivan did more for tile on fiberglass than anyone in the industry except me.