Ronfell Rubber is a sub-division of Ronfell Group that focuses on all aspects of the rubber industry. From EPDM, Silicone, Nitrile, Neoprene, and Bespoke Rubber Profiles; we cover every manufacturing aspect of the rubber industry. Established over 30 years ago, the core principles of the Ronfell Rubber business was modelled around mouldings for windows and doors.