Engineering decisions, organised
Anodizing, Conversion Films & Coatings
Compare anodizing, conversion films, powder coating and other coatings through substrate compatibility, thickness and the properties required after finishing.
Updated October 11, 2026 · 37 focused articles
Find the guide for your next decision
Follow the guide that matches the feature, failure mode or project decision you are working on.
Electroless Nickel Plating: Uniform Coverage Without an Electrical Current
Uniform Coverage Without an Electrical Current
Pre-Plating Preparation: Why the Surface Decides Whether the Coating Stays
Why the Surface Decides Whether the Coating Stays
Anodizing Service: Specifying Type II and Type III Coatings Correctly
Specifying Type II and Type III Coatings Correctly
Black Anodizing: Hitting Consistent Color, Sheen and Batch Match
Hitting Consistent Color, Sheen and Batch Match
Anodizing Thickness and Growth: How Coating Build Affects Fits and Threads
How Coating Build Affects Fits and Threads
Powder Coating Service: Specifying Color, Texture and Durability
Specifying Color, Texture and Durability
Powder Coating on Aluminum: Pretreatment, Adhesion and Edge Coverage
Pretreatment, Adhesion and Edge Coverage
Powder Coating Thickness and Masking: Holding Tolerances on Threads and Mating Faces
Holding Tolerances on Threads and Mating Faces
Electroplating Service: Choosing the Coating System by Requirement
Choosing the Coating System by Requirement
Hard Chrome vs Electroless Nickel: Wear, Corrosion and Dimensional Build-Up
Wear, Corrosion and Dimensional Build-Up
Plating on Aluminum: Zincate Pretreatment and Adhesion That Survives
Zincate Pretreatment and Adhesion That Survives
Solving Electroplating Challenges for Brass Products: A Success Story
A Success Story
A Comprehensive Guide to Aluminum Anodizing: Everything You Need to Know
Everything You Need to Know
Electroplating Services: The Ultimate Precision Engineering Guide for Custom Parts & Surface Finishing
The Ultimate Precision Engineering Guide for Custom Parts & Surface Finishing
Is powder coating finish the right choice for your parts?
Read the focused guide for is powder coating finish the right choice for your parts.
Aluminum Anodizing for CNC Parts: Coating, Tolerances, and Color
Coating, Tolerances, and Color
Prototype Finishes That Match Production: Anodizing, Painting, and Texture
Anodizing, Painting, and Texture
6061 vs. 6063 Aluminum for Extrusion: Strength, Anodizing, and Cost
Strength, Anodizing, and Cost
Aluminum Extrusion Finishing: Anodizing, Powder Coating, and Sandblasting
Anodizing, Powder Coating, and Sandblasting
CNC Machined RF and Telecom Enclosures: Materials, Plating, and Gasket Seats
Materials, Plating, and Gasket Seats
Designing Parts for Plating and Anodizing: Racking, Edges, and Threads
Racking, Edges, and Threads
Electroless Nickel vs Electrolytic Nickel Plating: Which Fits Your Part
Which Fits Your Part
Hard Anodizing vs Standard Anodizing: Type II vs Type III Explained
Type II vs Type III Explained
Zinc Plating vs Zinc-Nickel Plating for Steel Parts
Read the focused guide for zinc plating vs zinc-nickel plating for steel parts.
Gold vs Silver Plating for Electrical Contacts
Read the focused guide for gold vs silver plating for electrical contacts.
Tin Plating for Solderability and Conductivity on Copper Parts
Read the focused guide for tin plating for solderability and conductivity on copper parts.
E-Coating vs Powder Coating for Metal Parts
Read the focused guide for e-coating vs powder coating for metal parts.
ASTM B633 Zinc Plating Classes: Thickness, Corrosion, and How to Specify
Thickness, Corrosion, and How to Specify
Electro Nickel Plating: Why Current Density Decides the Coating You Get
Why Current Density Decides the Coating You Get
Precision EN Plating: Using Electroless Nickel Where Dimensions Matter
Using Electroless Nickel Where Dimensions Matter
Aerospace Electroplating: Where Process Control Matters More Than the Coating
Where Process Control Matters More Than the Coating
Anodizing Aluminum Parts: What the Layer Does and What It Costs You
What the Layer Does and What It Costs You
The Aluminum Anodizing Process: From Bath to Sealed Surface
From Bath to Sealed Surface
Aluminum Anodizing Colors: What You Can Achieve and What You Cannot
What You Can Achieve and What You Cannot
Clear Anodized Aluminum: The Finish That Does Not Look Like a Finish
The Finish That Does Not Look Like a Finish
Black Anodized Aluminum: Why the Shade Depends on the Layer, Not the Dye
Why the Shade Depends on the Layer, Not the Dye
Chromate Conversion Coating on Aluminum: A Thin Film That Still Conducts
A Thin Film That Still Conducts
Before you release the project
- Define the function, environment and the question this batch must answer.
- Specify material grade, geometry, quantity, finish and the dimensions that control fit.
- Agree the inspection method and the evidence required to accept the parts.
- 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.
