
We are dedicated to producing safe, quality products which continue to meet and satisfy the needs and requirements of our customers and interested parties.
Our Entropy system is a purpose specific database, which enables us to record and monitor all aspects of Quality Management; this includes objectives and targets, audit reporting, document control and training records.
ISO 9000 is the the world's most established Quality Management System framework. Tetrosyl Ltd has been continuously certified to BS5750 and ISO 9001: 2000 since 1993 and gained certification to ISO 9001: 2008 in 2010.
The BRC Global Standard- Consumer Products was created to establish a standard for due diligence and supplier approval for the consumer products market ensuring the supply of safe and legal products to consumers. Tetrosyl has been certified to the BRC Standard for Consumer Products since 2004.
External audits are carried out by SGS UK Limited who are the world' leading inspection, verification, testing and certification company and are recognised as the global benchmark.








“I recently purchased a bottle of spray on Demon Shine and am amazed by the results. I was sceptical about the claims on the bottle, but after using it, I know the claims are fully justified. Not only did I polish my car in under 20 minutes, but the shine was absolutely incredible, and it was achieved with very little effort.”

























