Rubber Foam N. B. R.

NBR is a synthetic rubber. It has general rubber properties, oil proofness, heat resistance, absorption 
  resistance. Also it is low in contractibility and weight, so widely used for cloth sewing, industrial 
  material, adiabatic and sound insulating material and as substitute of CR, and suitable for material 
  of safety jacket

  NR is used as material for cushioning and sealing and pad due to good elongation, process ability  
  and elasticity.