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Surface Preparation, Plating & Inspection

Compare mechanical preparation, plating and passivation around the substrate, finish standard, corrosion requirements and inspection plan.

Updated October 11, 2026 · 26 focused articles

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Follow the guide that matches the feature, failure mode or project decision you are working on.

Bead Blasting Stainless Steel: A Uniform Finish That Does Not Create Rust

A Uniform Finish That Does Not Create Rust

Black Oxide on Stainless Steel: Activation, Color and Corrosion Reality

Activation, Color and Corrosion Reality

Blackened Steel Finishes: Oil, Wax and Sealer Options for Corrosion Control

Oil, Wax and Sealer Options for Corrosion Control

Bead Blasting Aluminum: Avoiding Smearing, Peening and Dimensional Change

Avoiding Smearing, Peening and Dimensional Change

How does passivation stop stainless steel from rusting early?

Read the focused guide for passivation stop stainless steel from rusting early.

Industrial Surface Finishing: Engineering Standards, Process Metallurgy, and Global Supply Chain Integration for Custom Parts

Engineering Standards, Process Metallurgy, and Global Supply Chain Integration for Custom Parts

Bead Blasting: Uniform Matte Finishes for Precision Machined Parts

Uniform Matte Finishes for Precision Machined Parts

Surface Finish Standards: Engineering Guidance for Custom Metal and Plastic Parts

Engineering Guidance for Custom Metal and Plastic Parts

How should you choose deburring and finishing processes for better parts?

Read the focused guide for how should you choose deburring and finishing processes for better parts.

CNC Surface Finish: Ra Values, Measurement and Finishing Choices

Ra Values, Measurement and Finishing Choices

5-Axis Tolerances and Surface Finish: What to Expect on Complex Surfaces

What to Expect on Complex Surfaces

How to Machine Press-Fit Holes: Tolerance, Surface Finish, and Assembly

Tolerance, Surface Finish, and Assembly

O-Ring Groove Design: Dimensions, Tolerances and Surface Finish

Dimensions, Tolerances and Surface Finish

How to Measure Surface Roughness: Ra vs Rz and Profilometer Methods

Ra vs Rz and Profilometer Methods

Black Oxide vs Phosphate Coating for Steel Parts

Read the focused guide for black oxide vs phosphate coating for steel parts.

Bead Blasting Media Types: Glass, Ceramic, Aluminum Oxide, and Steel Shot

Glass, Ceramic, Aluminum Oxide, and Steel Shot

Passivation Service: Specifying ASTM A967 and AMS 2700 Correctly

Specifying ASTM A967 and AMS 2700 Correctly

Citric vs Nitric Acid Passivation: Bath Choice, Cycle Time and Waste Handling

Bath Choice, Cycle Time and Waste Handling

Black Oxide Coating: Hot vs Cold Processing and What to Specify

Hot vs Cold Processing and What to Specify

Glass Bead Blasting: Producing a Uniform Matte Finish Ready for Coating

Producing a Uniform Matte Finish Ready for Coating

Bead Blasting vs Sandblasting: Media, Profile and Finish Compared

Media, Profile and Finish Compared

Stringent Surface Finish Requirements: Turning a Ra Callout Into a Process

Turning a Ra Callout Into a Process

Passivation Services: Restoring the Oxide Layer on Stainless Steel

Restoring the Oxide Layer on Stainless Steel

Knurling & Texturing: Designing Functional Surfaces for Prototyping and Custom Parts

Designing Functional Surfaces for Prototyping and Custom Parts

Color and Finish Matching Across Prototypes and Production: From Pantone to Texture Samples

From Pantone to Texture Samples

Industrial Surface Treatments: Selection, Fit and Inspection Guide

Selection, Fit and Inspection Guide

Before you release the project

  1. Define the function, environment and the question this batch must answer.
  2. Specify material grade, geometry, quantity, finish and the dimensions that control fit.
  3. Agree the inspection method and the evidence required to accept the parts.
  4. Record the drawing revision and approval before production begins.

Common planning questions

When should the finish be specified?

Before production. Film thickness, masking, substrate preparation and cosmetic requirements can change dimensions, conductivity and assembly fit.

Is one finish suitable for every alloy?

No. Substrate chemistry, condition and service environment influence preparation and compatibility. Specify the actual alloy and intended use.

Move from guidance to a reviewed project

Send the CAD model and drawing with material, quantity, finish and inspection requirements. Use the relevant service page to review the available manufacturing route.

Review related servicesRequest a project review