Specify coating together with the machined part
Powder coating adds a finish requirement to the CNC part drawing. State the substrate, coating specification or approved description, color and which surfaces are coated or masked. If a component mates with another part, identify the dimensions that must be accepted after coating.
See our powder coating process page and the broader surface finishing overview. This page focuses on coordinating coating requirements with a machined-part request.
Mark critical areas before quotation
- Threads, bores, fits and contact surfaces that need masking or special treatment.
- Critical dimensions to inspect after coating.
- Color, finish and documentation requirements.
- Material, quantity, secondary machining and delivery destination.
Do not assume that one coating description establishes a universal thickness, color match or fit. The specification and acceptance plan must be confirmed for the actual part.
Send the complete scope
Provide the current model and drawing, substrate, coating details, quantity and inspection needs. Identify any dimensions that are measured before and after the finish so the quote and acceptance plan cover the intended condition.