Buna^® CB 550 T is a Lithium Butadiene Rubber.
CAS No.: 9003-17-2
The rubber is protected by a nonylphenol-free stabiliser system which is in chemical compliance with the FDA regulation §177.2600 "Rubber articles intended for repeated use", the recommendation VI of the Federal Institute for Risk Assessment and the Commission Regulation (EU) No 10/2011 and amendments until today.