The weldability of poly(vinyl chloride) (PVC) is assessed through hot-tool
and 120-Hz vibration welds. Equivalent strengths have been demonstrated for
welds made by both of these welding techniques. For two grades of WC, rela
tive weld strengths of 85 and 97%, with corresponding failure strains of ab
out 2.5 and 3.3%, respectively, have been demonstrated.