Plysolene PIB

Plysolene Polyisobutylene Jacketing PIB Application Advice The sheeting is very easily applied to the insulated pipeline. Suitably sized pieces are cut and wrapped around the outside of the insulation. Endlaps of 80mm should be allowed and 50mm sidelaps underneath the pipes. The overlaps are solvent welded by applying Plysolene Welding Agent E with a stiff brush. Other solvents can be used, but greater skill is required to achieve really good welds, hence Plysolene always recommend the use of their specifically formulated welding agent. The solvent should be applied with a circular scrubbing movement to both surfaces so that they become tacky before the overlap is pressed together. The use of too much solvent can cause premature failure as the excess solvent will continue to dissolve the PIB long after the weld has been made.