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Short mouldings The causes of short mouldings are many and varied and are sometimes difficult…

Flow marks Material entering a mould always follows an almost identical path with successive mouldings.…

Flash The escape of a thin web of material at parting lines,around ejector pins or…

Cracking or Crazing This fault occurs only when there is residual stress in a moulding…

Burn marks What is Burn Marks If an area of a moulding becomes the oxidized,…