It is a durable protection and colouring obtained via molecular bonding. Furthermore, the aim is a system that is extremely safe, durable, and economical. The RMC FR System has been tested according to the standards EN 13501-1, EN ISO 11925-2, and EN ISO 9239-1. It is an absolute first that Muylle Facon earned a Bfl s1 for this; the B-norm is the highest achieved grade that an oil system has ever achieved up until now. The s1 is a major limiter of smoke development, which was something the company has consistently sought.