What to Ask Your Coating Supplier Before Your Next Run
Before you approve a new coating chemistry for production, five technical questions can save significant waste and downtime. Viscosity drift, pH control, and substrate compatibility are non-negotiable starting points. A supplier unwilling to provide batch-certified TDS documents is a red flag on any offset or UV line.
Ask specifically about gloss performance after rewetting, cold-seal compatibility if applicable, and whether the product has been tested at your target press speed. A good supplier will answer these without hesitation and provide documented batch test results on request.