Forum ForumsWhat’s NewMembersContactCommunity RulesAbout Forums Injection Molding Q... Process Optimizatio... Notifications Clear all Process Optimization & Defects Sink marks, flash, warpage, short shots, silver streaks, burn marks — root causes and fixes. RSS Votes & Answers Question Question Status 0 0 2 Defect quick-reference: likely causes by defect type By mfg, 3 hours ago replies 0 Share: