Rubber to Metal Bonding Adhesive BA-213 (Equivalent to Chemlok 205,Chemosil 211,Cilbond 10E/12E) Description Our BA-213 is a heat vulcanization bonding agent for rubber and various metals. It works as general purpose primer which is equivalent to Chemlok 205, Chemosil 211, Cilbond 10E/12E etc. Features And Benefits It is one coat bonding agentfor nitrile rubber (NR). It is also used as primer bonding agent for various metals, plastics and rubbers