EVA is ethyl vinyl acetate resin and has better water proofness and sealing ability than that of poly
  urethane foam. And it is widely used for machinery & automobile packing material, air conditioner,
  civil work, heat insulating material of verities machines, fishing parts, tools for baby and packing.

  Main material of CSM is chlorosulfonated polyethylene. It is little bit expensive but suitable for bright
  color product. Also it is used as specific material with merit of Neoprene EPDM.