Hanno cell India rubber is a closed-cell
  soft-elastic pore rubber. It is excellently
  suited for elastic sealants of all kinds.
  Hanno offers you 3 different qualities
  for various fields of use.
   
 
   
   
   
  The temperature resistance can hereby
  range from between -40°C and +120°C.
   
  We can provide you with (almost) all
  forms whatsoever by special design.