Jointing methods The Effast Polypropylene range is jointed by socket fusion however there are two further jointing techniques. For reference only the images below detail the socket fusion and also butt fusion and electro fusion techniques. Socket fusion Butt fusion Electro fusion Heating spigot Welding leads Pipe or Fitting Fitting Pipe or Fitting Heating socket Heating element Pipe or Fitting Heating element Pipe Electro-fusion socket Individual parts Individual parts Heating Heating Heating Finished joint 62 Individual parts Finished joint Finished joint Sales and enquiries please contact: 08452 700886