About This Independent Plastics Processing Resource

Independence notice: This site does not represent Bill Tobin, the former WJT Associates consulting business, or any current consulting or training service.

What this site is

WJTAssociates.com is an independent educational resource about injection molding process discipline, tooling qualification, setup documentation, training evaluation, and production engineering. The domain has historical public references in plastics consulting and injection molding education, and this site uses those themes as a framework for practical, independent guidance.

The site publishes educational guides about injection molding process discipline, tooling qualification, training, and supplier and process evaluation. Articles are written from a buyer- and processor-oriented perspective — focused on questions that procurement, engineering, and plant management teams actually face.

What this site is not

The current site does not represent Bill Tobin or the former WJT Associates consulting business. It is not a continuation of any prior consulting, seminar, expert witness, or training service. No consulting, expert witness, seminar, or training services are offered here.

Historical PlasticsToday articles by Bill Tobin are referenced in some articles as context for the topics covered. Those references are for historical and editorial context only — they do not imply affiliation, endorsement, or a current relationship with the original WJT Associates business.

Why these topics

The strongest historical associations of the WJTAssociates.com domain point toward specific, applied injection molding knowledge: process troubleshooting, training ROI, tooling qualification, setup sheets, production process windows, scientific molding principles, and the practical intersection of technical and commercial decisions in injection molding. Those are genuinely useful topics for processors, buyers, and plant managers — independent of any particular business or individual.

Scope and limitations

This site does not offer advice on specific production problems, mold designs, or business decisions. It does not provide referrals to consultants, molders, or suppliers. It is an archive and guide, not a service provider.