RSY is medium wall heat shrinkable tubing with hot melt adhesive, having properties of excellent  insulating,  environmental  sealing,  and  resistant  to  impact  and  abrasion.  It  is designed  for  applications  to  seal  and  protect  electrical  splices,  cable  terminations and joints where electrical insulation and water proof are required. 3:1 shrink ratio allows it easily fit over irregular shape and large connectors.