Royalex

Thus Royalex can be designed to form virtually any finished thickness to suit the end application.

It was developed at US Rubber Co's Chicago plant by Bob Pooley and was simply called Royalite.

Later, Bob Pooley and associates continued work on Royalite to introduce a foaming/expandable element.

The writer brought both of these cars to London, England to show at the International Plastics Exhibition and for exposure to the then extensive automotive producers.

An additional reason was that following the breakup of the Uniroyal empire, product specialists were lost and there was no longer a team to drive the concept.

[3] In 2013, plastics company PolyOne, of Avon Lake, Ohio purchased Spartech, and decided to shut down Royalex production due to its low volume.

Royalex is lighter, more resistant to UV damage from sunlight, more rigid and has greater structural memory than non-composite plastics used for this purpose, such as polyethylene.

"Royalex was soft, quiet and slippery on rocks, and not too heavy if you kept the gunwales light,” according to Kent Ford.