what is bunan
Buna-N and buna-S both are synthetic rubber and copolymers. The difference lies in their composition. Buna N Constituents are buta-1, 3-diene and acrylonitrile. Buna-S Constituents are buta-1, 3-diene and styrene. Buna-N and buna-S both are synthetic rubber and copolymers. The difference lies in their composition.