Writing a Marking, Coating or Adhesion Specification a Supplier Can Be Held To
Specifications fail when they state an outcome without a method. What to include so that both parties can reach the same verdict on the same parts.
When a Process Change Needs Revalidation — and When It Does Not
Treating every change as major stops improvement; treating none as major invites failure. A graded framework for deciding what a change actually requires.
Liquid, Powder or UV-Cure: Selecting a Coating Process for Plastics
Three coating processes with different temperature limits, cure mechanisms and geometry constraints. Matching the process to the substrate and the requirement.
When to Bring In an Outside Process Engineer — and What an Hour Can Settle
Outside engineering is usually called too late, after months of internal iteration. The signals that it is worth calling, and how to scope a short engagement.
ISO 13485 and the Paperwork Behind a Qualified Marking Process
A marking process in a device quality system needs design controls, validation, traceability and change control. What each one asks for in practical terms.
IQ, OQ and PQ for a Laser Marking Process: What Auditors Actually Ask For
Validating a marking process means proving the window, not the setting. How installation, operational and performance qualification apply to laser marking.
The Digital Product Passport for Plastics Manufacturers: What the Data Carrier Requirement Means
The DPP requires a durable, machine-readable carrier attached to the product and readable across its life. That is a marking requirement, written into law.
Why Paint and Ink Delaminate From Molded Plastic Parts
A decision tree for coating and ink delamination on molded plastics: find the failure interface first, then surface energy, contamination or cure.
Do You Need a Laser Safety Officer? Class 1 Enclosures and Class 4 Beams
Whether a marking cell needs a Laser Safety Officer depends on its installed classification, not the laser inside it. How that classification is decided.
