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Plating Solutions
Protect threads, bores, bearing surfaces, contact points, and no-plate areas with masking and hanging solutions designed to support cleaner plated results, stronger part function, and more repeatable finishing workflows.
Built for selective plating requirements
- Protect critical features before parts enter the line
- Keep threads, bores, and mating areas functional
- Support selective coverage where only certain areas should plate
- Find caps, plugs, tapes, and hanging solutions in one place
Find the right plating solution faster
Select the feature that needs protection and the primary finish objective to narrow the best masking path
Popular Plating Products
Frequently used product groups and components for plating masking and hanging applications.
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Masking support for real plating production
Plated finishes are often used to improve corrosion resistance, wear performance, conductivity, solderability, and appearance. That also means selected surfaces may need to remain unplated so the finished part still fits, seals, assembles, conducts, or performs exactly as intended. The right masking and hanging strategy helps preserve those functional areas while supporting cleaner, more repeatable results through the line.
Where plating masking creates better outcomes
EPSI offers masking caps, masking plugs, tapes and discs, and hanging solutions that help support plating requirements across industrial, engineered, and selective-finishing applications.
- Preserve fit-critical features — Keep plating off threads, bores, bearing surfaces, seal areas, and mating surfaces.
- Protect intentional contact areas — Maintain selected conductive, rack-contact, or no-plate zones where required.
- Support finish consistency — Align masking decisions to part geometry, line handling, and end-use requirements.
Common plating challenges
Strong plating results depend on more than chemistry alone. Part geometry, selective coverage requirements, contact strategy, and dimensional sensitivity all influence the final outcome.
- Protecting internal threads, bores, and precision openings
- Preserving selected contact, grounding, or bearing areas
- Preventing issues on mating surfaces and tight-tolerance features
- Supporting consistent rack presentation and repeatable finish quality
Protect function before plating begins
Caps, plugs, tapes, and discs help preserve the areas that must stay free of deposit so parts remain ready for assembly, sealing, and use.
Support selective and engineered coverage
Better masking choices can help control where plating goes and where it does not, especially on parts with functional zones and tighter tolerances.
Reduce rework on higher-value parts
Preserving threads, contact areas, and no-plate surfaces can reduce downstream cleanup, touch-up, and avoidable scrap risk.
Choosing the right masking approach for plating
The most effective approach depends on part geometry, selective coverage requirements, dimensional sensitivity, and the surfaces that need to remain functional after plating. Some jobs are straightforward. Others require a combination of plugs, caps, tapes, and hanging components to manage both performance and presentation.
- Internal, external, flat, or irregular geometry
- Selective plating and no-plate zone control
- Single masking type or combination approach
- Repeatability across recurring production
Cleaner plated function starts before the line
Matching the masking and hanging solution to the real requirement helps preserve part function, support more consistent finish quality, and reduce unnecessary downstream handling.
Plating solution guide
Match the masking and hanging solution to the feature being protected and the role the part plays in the plating process.
| Need | Recommended Solution | Why It Helps |
|---|---|---|
| Protect holes, bores, and internal threads | Masking Plugs | Plugs help shield internal features and openings that must remain functional after plating. |
| Protect external threads, studs, and projections | Masking Caps | Caps help cover external features quickly and preserve functional outer surfaces. |
| Define no-plate areas on bearing surfaces or flats | Tapes & Discs | Tapes and discs help create cleaner boundaries where selected surfaces need to stay free of deposit. |
| Support contact strategy and line presentation | Hooks & Hanging Solutions | Hanging components can help improve repeatability, access, and consistent part orientation. |
| Start with a broader comparison of options | Masking Solutions | A category-level review is a practical way to compare materials and narrow the best fit for the application. |
Explore plating product solutions
Browse product groups commonly used to support plating applications.
Masking Plugs
Protect holes, bores, ports, and internal threads through the plating process.
Masking Caps
Cover external threads, studs, and projections that need to remain free of deposit.
Tapes & Discs
Mask flats, bearing areas, and selected no-plate or cosmetic-control zones.
Hooks & Hanging
Support better contact strategy, orientation, and repeatable handling through the line.
A12 Series Green Poly Tape
A versatile option for defined masking lines and protected surface zones.
CNC Cross-N-Click Crossbar
Modular racking support to improve spacing, presentation, and line consistency.
What changes by plating type
Not every plating line is solving the same problem. The finish objective changes the masking strategy, the surfaces that matter most, and the questions worth answering before production begins.
Zinc & zinc-alloy plating
Often selected when corrosion protection on steel is the primary goal. Threads, internal features, mating surfaces, and selected no-plate zones may need protection where buildup or post-finish function matters.
Nickel plating
Commonly considered when corrosion resistance, wear performance, or an engineered underlayer is important. Masking often focuses on fit-critical areas, bearing surfaces, and selected contact zones.
Electroless nickel
A strong fit where more uniform deposit behavior matters, especially on parts with recesses, internal diameters, or more complex geometry. Dimensional sensitivity becomes a more important planning factor.
Chromium plating
Used in both decorative and harder-wearing functional contexts. The masking conversation often shifts toward wear surfaces, cosmetic boundaries, and preserving critical dimensions or contact locations.
Tin, silver, and gold-type finishes
These conversations more often center on solderability, conductivity, oxidation protection, contact reliability, and selective finishing on electrical or high-value assemblies.
Selective and no-plate strategies
Many parts do not need every surface plated. Some need plating only where performance matters, while other surfaces must stay free for fit, grounding, bearing contact, sealing, or assembly.
Questions worth asking before choosing the masking setup
- Which surfaces must remain completely free of deposit?
- Is the finish mainly for corrosion protection, wear, conductivity, solderability, or appearance?
- Will deposit buildup affect thread fit, press fits, seal faces, or bearing surfaces?
- Are there grounding, conductive, or rack-contact areas that must remain functional?
- Are there blind holes, recesses, internal diameters, or deep features that change how coverage behaves?
- Is the part being rack plated, selectively plated, or processed in a way that creates defined contact locations?
Questions that help avoid downstream problems
- What cosmetic boundaries are acceptable, and where would a visible transition be a problem?
- Is there a post-treatment, bake, seal, or other follow-on step that changes the masking choice?
- Does the substrate or specification create additional risk around embrittlement or tolerance loss?
- Will parts need to assemble immediately after finish, or is there rework margin built into the design?
- Is the part high-volume and repetitive, or a lower-volume engineered application that may justify a more tailored masking approach?
- Would samples or a trial run reduce risk before locking in the production approach?
Plating FAQs
Helpful starting points for common plating masking, selective coverage, and process-planning questions.
What is the main purpose of plating?
Plating is used to change surface performance, appearance, or both. Depending on the finish, that can mean improved corrosion resistance, wear resistance, conductivity, solderability, or cosmetic appeal.
Why are parts masked before plating?
Parts are masked when selected features need to remain free of deposit after processing, such as threads, bores, bearing surfaces, contact zones, sealing areas, or other fit-critical surfaces.
Does every plating finish solve the same problem?
No. Different finishes are often chosen for different priorities such as corrosion protection, wear, contact performance, solderability, or appearance. That is why the masking strategy should follow the actual end-use requirement rather than treating all plating jobs the same way.
Can plating affect dimensions or fit?
Yes. Tight-tolerance surfaces, threads, internal diameters, and mating features often need careful masking strategy so the finished part still assembles and performs as intended.
Why are some areas intentionally left unplated?
Some areas need to retain function for grounding, conductivity, bearing contact, sealing, assembly, or controlled rack contact. In those cases, the objective is not maximum coverage everywhere, but correct coverage in the right places.
When is selective plating a better approach than plating the whole part?
Selective plating is often the better approach when only certain surfaces deliver the performance value, while other surfaces need to remain free for fit, cost control, conductivity, or downstream assembly requirements.
How do contact points and rack locations affect the result?
Every plating setup has to account for how the part is presented and contacted during processing. Those locations can influence where finish is interrupted, so they should be planned intentionally rather than treated as an afterthought.
What should be reviewed on higher-strength steel parts?
For some susceptible materials and specifications, plating-related hydrogen embrittlement considerations may need to be reviewed along with masking, process control, and any required post-process steps.
Where is a good place to start when selecting plating masking products?
A practical starting point is to identify the no-plate surfaces, the functional objective of the finish, and any tolerance-sensitive features. From there, compare plugs, caps, tapes, and hanging/contact solutions against the actual part geometry and production method.
Build a cleaner, more repeatable plating workflow
Explore caps, plugs, tapes, hanging solutions, and modular racking components designed to help preserve fit, function, selective no-plate zones, and more consistent plated results.