MANUFACTURING / COATING AND FINISHING
Coating and Finishing in Magnet Production
Review coating and finishing as part of custom sintered NdFeB production, with the application, fit and exposure considered together.
Drawing-led review preferred. A clear written requirement can start the discussion when a drawing is not ready.
ENGINEERING SNAPSHOTKeep the requirement visible from review to release.
Common treatment discussion
Application dependent
Coating selected in context
Acceptance basis agreed
01 / CONFIRMED TREATMENT OPTIONS
Choose the finish with the application.
Nickel, zinc, epoxy and phosphating can be considered. The selected route depends on exposure, assembly fit, appearance and the approved project basis.

Nickel
Consider with the assembly and surface requirements.
Zinc
Review against environment and finished fit.
Epoxy
Discuss where the application needs the selected surface.
Phosphating
Consider as part of the project coating basis.
02 / FINISHING IS PART OF THE ROUTE
Keep coating connected to production.
Coating is not an isolated final label. Magnet geometry, machining allowance, surface preparation, magnetization and inspection all inform the finishing review.
Geometry
Critical faces and fits need the finished condition.
Surface
Preparation and visual condition remain part of release.
Environment
Operating exposure guides the treatment discussion.
03 / RELEASE CONSIDERATIONS
Define what a finished surface must show.
The RFQ should identify the coating, exposure, appearance, critical dimensions and any acceptance criteria already known. Final treatment and release expectations are confirmed for the project.

Treatment
State the requested or required coating.
Exposure
Describe the operating environment and contact conditions.
Appearance
Clarify visual condition and defect expectations.
Dimension
Keep coating allowance connected to fit.
04 / NEXT STEP
Review the coating route before quotation.
Share the application environment, geometry, requested treatment and release expectations. The finishing route can then be reviewed with the rest of the part.
Application
Exposure, fit and surface context.
Treatment
Requested coating and any alternatives.
Release
Appearance, corrosion and dimensional basis.
COATING / FINISHING / PROCESS BASIS
Make the finish part of the specification.
The right coating discussion starts with exposure and fit, not a disconnected label.
Discuss the Coating Route