An independent educational resource built around historical WJT Associates themes: practical plastics processing, molding troubleshooting, process discipline, tooling qualification, training, and production engineering. This site does not represent the former WJT Associates consulting business or Bill Tobin.
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WJT Associates and Injection Molding Process Knowledge
Understand what the historical WJT Associates domain covered — process engineering, tooling qualification, troubleshooting, training, and project management — and why those themes still matter for buyers and processors.
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A buyer- and processor-focused guide to the historical WJT Associates themes: injection molding process discipline, tooling qualification, troubleshooting, training, and production engineering.
A practical guide to evaluating injection molding training ROI, learning motivation, process discipline, setup sheets, scrap reduction, and shop-floor behavior.
A practical framework for diagnosing and eliminating flash in injection molding. Covers root cause logic, process window discipline, mold vs. machine separation, and why random setting changes make flash worse.
A practical guide to injection mold qualification, T1/T2/T3 sampling discipline, process window documentation, setup sheets, and what buyers and processors should expect before a mold is approved for production.
A practical guide to improving profitability in injection molding through quoting discipline, documented process windows, setup control, customer management, and better separation of technical and commercial problems.