SURFACE FINISHES
Choose surface treatment by function, material and inspection
Compare appearance, corrosion, wear, texture, dimensional change, masking and acceptance needs before specifying the finish route.
FINISH FAMILIES
Move from required outcome to a compatible process
Select a finish family to compare surface examples, compatible routes and the requirements to confirm for your part.
Swipe the finish tabs on smaller screens.
Mechanical / as-produced
Distinguish the as-machined, as-molded or as-cast condition from a separate deburring or tumbling operation. Describe the edge and surface condition the assembly needs.
Confirm for your part: Identify burr-sensitive passages, sharp-edge limits, visible tool marks, datums and surfaces that must retain their specified dimensions.
Texture / blasting / brushing
Choose the intended texture and visual direction first. State whether the request is bead blasting, sand blasting or directional brushing, rather than treating these names as interchangeable.
Confirm for your part: Confirm the substrate, texture reference, exposed cosmetic faces, masked interfaces and how the appearance will be accepted.
Polishing / electropolishing
Separate a cosmetic appearance request from a measurable surface-finish requirement. Specify whether polishing alone or a combined brushing and electropolishing route is being considered.
Confirm for your part: Identify the critical faces, internal access, edge-detail restrictions and inspection method; review the sequence against the supplied material.
Anodizing / hardcoat
State the aluminum alloy and whether the drawing calls for Type II or Type III hardcoat. Define the required purpose, color and any preparatory texture as separate requirements.
Confirm for your part: Confirm the applicable specification, masking, threads, mating dimensions and appearance reference before accepting a combined finish sequence.
Conversion / passivation / black oxide
Keep conversion coating, stainless-steel passivation and black oxide as distinct requests. Start with the exact substrate and the drawing requirement, then review the relevant process.
Confirm for your part: For passivation, identify the stainless grade, prior operations and required verification. For every route, confirm the specification and any electrical-contact or masked areas.
Plating
Name the requested plated system, such as electroless nickel, and the purpose it must serve. A generic request for electroplating does not define the substrate preparation or finished condition.
Confirm for your part: Review the base material, coverage, critical fits, masked areas and any drawing-defined thickness or test requirements with engineering.
Powder / E-coating / galvanizing
Specify powder coating, E-coating, galvanizing or another named coating as a project requirement. Compare the required environment, appearance and base material before choosing a route.
Confirm for your part: Provide the coating specification, color or texture reference, protected contacts, threaded features and acceptance requirements; confirm route availability during review.
Marking
Define what the mark must communicate: part identity, traceability, orientation or branding. Provide the actual artwork or text and its location on the drawing.
Confirm for your part: Confirm legibility, contrast, orientation, marking area and the sequence relative to any surface treatment.
PART-001
REV A
Additive post-processing
Distinguish the as-printed condition from support removal, depowdering, dyeing or smoothing. Identify the printing process and material so the proposed post-processing route can be reviewed.
Confirm for your part: Call out enclosed spaces, trapped-powder or support access, delicate features, fit surfaces and appearance references; confirm cleaning and final inspection needs.
Review material, process, masking, fit and acceptance context together before specifying the finish route.
ENGINEERING SELECTION
Specify the finish around the feature that must survive it
Confirm these four requirements before releasing the finish specification.
Functional purpose
Corrosion, wear, conductivity, friction, cleanability and marking each lead to different finish families.
Material and process
Confirm substrate, heat treatment, additive or fabricated condition, and any combination finish before release.
Interfaces and masking
Call out threads, sealing faces, contacts, datums and fit surfaces that require masking or post-finish verification.
Acceptance
Define color or texture references, coating zones, critical dimensions and inspection evidence at project review.
Finish planning matrix
| Decision | Confirm before quote | Confirm before production |
|---|---|---|
| Outcome | Functional, cosmetic or both | Reference standard and acceptance boundary |
| Compatibility | Base material and manufacturing route | Pre-treatment and combination sequence |
| Geometry | Threads, pockets, contacts and fit surfaces | Masking, buildup and measurement method |
| Evidence | Critical surfaces and customer references | Inspection record appropriate to the requirement |
PROJECT-SPECIFIC FINISH REVIEW
Share the drawing and the surface outcome the part must achieve.
Debaolong can review material, process, masking, fit and acceptance context together.