High Phosphorus
Roughly 10 to 13 percent phosphorus. The most corrosion resistant option and essentially nonmagnetic, chosen for parts exposed to moisture, salt and chemicals.
Low friction may be a functional requirement for some moving parts, while other parts need a corrosion-focused deposit. The application details help determine whether standard nickel-phosphorus or a composite option deserves consideration.
Use section views for hidden features.
Where sliding contact occurs, identify the mating material and expected operating cycle. These details help determine whether a composite option should be reviewed.
PTFE composite should be tied to a defined function, such as reduced friction or dry operation. It should not be requested as a generic upgrade without application details.
Identify any surfaces that must remain electrically conductive or available for later joining.
Send us the drawing or a few photos, the material, and what the part does in service. If your print calls out a coating specification or a finished dimension, include it. We will recommend a phosphorus range and a thickness, tell you whether masking or heat treatment makes sense, and send back a written quote.
DMC can review low-, medium- and high-phosphorus deposits, target thickness, masking requirements and optional treatments. PTFE composite or post-plating heat treatment is considered only when the application and substrate support it. For narrow channels, provide cross-section dimensions and state whether the passage is open at both ends.
Roughly 10 to 13 percent phosphorus. The most corrosion resistant option and essentially nonmagnetic, chosen for parts exposed to moisture, salt and chemicals.
Roughly 5 to 9 percent phosphorus. The general purpose workhorse, with a bright appearance and a balance of hardness, wear and corrosion protection that suits most industrial parts.
Roughly 1 to 5 percent phosphorus. The hardest deposit as plated, selected for sliding surfaces, tooling and components where wear resistance matters more than chemical exposure.
A bake after plating can raise hardness to a level that competes with hard chrome, or relieve hydrogen in high strength steel. The cycle is matched to the chemistry and the base metal.
Fine PTFE particles locked into the nickel matrix create a dry lubricating surface. Used on molds, fasteners, sliding mechanisms and anything that needs low friction or easy release.
Internal passages, blind holes, fine threads and deep pockets get the same coating as the outside of the part. Often the only practical choice when conventional plating cannot reach.
We run all three of these processes in house, so we have no reason to push one over another. Here is how they differ and when each one is the right call.
The plating bath is the same for every part. The preparation is not. Each substrate has its own cleaning and activation sequence, and getting it right is what keeps the coating attached.
The most common substrate we coat. After degreasing and acid activation, steel accepts every phosphorus range. High strength steels can receive a hydrogen relief bake after plating.
Its passive oxide film blocks adhesion, so it gets a nickel strike before the electroless bath. Often coated to stop galling on threads or to add surface hardness.
Aluminum oxidizes within seconds, so it receives a zincate treatment that protects the surface until the nickel takes over. The alloy matters, so tell us the grade if you know it.
Copper does not start the reaction on its own, so it is activated before plating. Electroless nickel then acts as a durable barrier against tarnish and diffusion.
Valve bodies, fittings and marine components plate cleanly once activated. The nickel layer protects against dezincification and adds a harder working surface.
Nickel alloys, tool steels and cast parts can be coated case by case. Send the exact alloy designation so we can confirm the activation sequence before you ship.
Everything we offer around electroless nickel, from the chemistry itself to masking, stripping and post plate treatment.
The first review confirms the base metal and the condition of the submitted surface. The drawing is then checked for critical dimensions, coated areas and geometry that could restrict solution access. For parts with narrow channels and cavities, also clarify solution exchange and drainage. The review should also identify any prior finish that may affect preparation.
Send photos or a drawing, the material, the quantity and any coating callout on your print.
We suggest a phosphorus range and thickness and send a written quote within 24 business hours.
After the quote and scope are approved, confirm the receiving instructions before dispatch. Wrap critical faces separately, prevent loose parts from contacting one another and include the order reference with the packing list. Use protective inserts that do not press against narrow channel openings.
Parts are degreased, masked where needed, activated for their alloy and plated in a controlled bath.
Coverage and thickness are checked, any heat treatment is completed, and parts ship back insured.
From custom builders to industrial manufacturers, our clients trust us to deliver the same result every time.
Parts such as parts with narrow channels and cavities can be used in very different operating conditions. One design may be governed by fluid exposure, while another is controlled by assembly fit or repeated contact. These are illustrative application types, not claims of local customer work. Restricted channels require enough detail to assess circulation and drainage.
CNC parts with tight tolerances, where the coating has to go on evenly so the part still fits after plating.
Valves, pump housings, shafts and fixtures that need corrosion protection inside passages as well as outside.
Brackets, fuel system fittings, brake parts and engine components protected from heat, fluids and road salt.
Fittings, pump parts and deck components where high phosphorus nickel stands up to constant salt exposure.
Plastic injection molds, dies and fixtures that need a hard surface, clean release and protection from corrosion.
Threaded parts, hinges and fittings coated all the way into the threads for smooth assembly and lasting protection.
Drag the handle on any photo to compare the part as it arrived with the finished electroless nickel surface.
Before
Arrived with surface rust and a failed zinc finish. Stripped, cleaned and activated, then coated with medium phosphorus nickel for an even, corrosion resistant surface that kept the part within its fit.
Before
Dull, oxidized housings with threaded ports. Each piece went through a zincate pretreatment and received high phosphorus nickel that reached every port and internal face.
Before
Deep pockets and cross drilled passages that conventional plating could not reach evenly. Electroless nickel coated the inside and the outside at the same thickness.
See the price before you ship a thing.
Snap a few photos from different angles and tell us the finish you have in mind. You'll get a written quote and a realistic lead time. Standard work takes 3 to 5 weeks, and expedited orders are possible when the schedule allows.
Functional plating only counts if the part works when it goes back into the assembly. That is the standard we inspect to on every order.
Bath chemistry, temperature and nickel content are monitored throughout the run so the deposit stays consistent from the first part to the last.
Steel, stainless and aluminum each follow their own cleaning and activation sequence, which is what keeps the coating bonded.
Coverage and coating thickness are checked against your requirement before parts are released for packing.
Finished parts are separated and packed so threads, sealing faces and machined surfaces arrive exactly as they left the tank.
Since 1989 we have plated parts for machine shops, manufacturers, restorers and builders. Decorative work and functional coatings run under the same roof, with the same inspection standard.
Send a photo or drawing and receive a no obligation quote within 24 hours.
Every part leaves our shop backed by our craftsmanship guarantee. If you are not satisfied, we make it right.
Single prototypes or full production runs, shipped to us from any state and returned insured.
Most projects are completed within 3 to 5 weeks. Expedited Orders: 5 to 7 business days. Contact us for availability.
Keep internal passages clear of packaging debris.
Separate finished pieces during storage and transport. Threads, sealing faces, bores and precision edges should not rub against loose hardware or hard packaging. For parts with narrow channels and cavities, protect the interfaces that determine assembly fit.
Cleaning and maintenance should follow the equipment requirements and actual exposure conditions. Do not assume every abrasive method or chemical cleaner is compatible with the component. Record any change that could affect the original acceptance criteria. Use only approved inspection tools in narrow channels to avoid damaging the feature.
Thickness is the other key number. Electroless nickel builds evenly, so the coating adds the same amount to every surface, inside diameters included. On a precision fit, that growth has to be planned for. Let us know the finished dimension you need, and whether any threads, bores or sealing faces should be masked and left bare.
Finally, mention quantity and timing. A single prototype and a recurring production run are scheduled differently, and knowing what is coming next lets us hold the same settings from batch to batch.
Electroless Nickel Gallery
Uniform electroless nickel on machined, threaded and complex parts, from valve bodies and molds to marine fittings and hardware.
Decorative Metal Coatings processes electroless nickel orders at its Oceanside, California facility. Eligible projects from Indio, CA, and elsewhere in the United States may be shipped after the quote and receiving instructions are confirmed. Protect precision surfaces and label each part number.
Send photos or drawings, the material and the quantity. You receive a written quote and lead time, usually the same business day. Always wait for a quote number before shipping.
Bag or wrap each part separately, cap threads and ports when you can, and keep parts from rubbing against each other. Use plenty of padding on every side of the box.
Declare the real value with the carrier and email us the tracking number so we can log your parts the day they arrive.
Once plating and inspection are complete, we pack the parts in clean materials and ship them back insured, or hold them for pickup.
Every electroless nickel order is cleaned, plated and inspected in our own facility in North County San Diego.
Electroless nickel, chrome and metal finishing in San Diego County since 1989.
Decorative Metal Coatings performs plating and inspection at its facility in Oceanside, California. Eligible projects from other U.S. locations may be shipped for review and processing.
Other locations listed in the supplied service-area directory include:
Frequently Asked Questions
The following answers address process selection, substrate information, coating dimensions and practical details that help define a plating request.
Provide the complete specification and revision for review. Chemistry, thickness, inspection and any post-treatment requirements must be evaluated before compliance can be confirmed.
It may coat internal passages when the solution can enter, circulate and drain. Provide passage dimensions and section views, particularly for blind holes or narrow channels where access is uncertain.
Provide the thread designation, class and finished engagement requirement. Because coating adds material to the thread, fit should be reviewed before the part is processed.
Describe the contact type, load, movement, speed and mating material. Wear behavior depends on the complete contact system, not only on the hardness of the coating.
Yes. Deposit adds material to coated surfaces and can affect bores, threads, sealing faces and mating clearances. Identify critical dimensions and state whether they apply before or after plating.
Send us a few photos of the part from different angles, along with what it is and the finish you want. We look them over and send a written quote, usually within 24 business hours. It's free, and you're under no obligation to go ahead.
Standard orders take 3 to 5 weeks from the day your parts arrive. If you're on a deadline, ask about expedited service. When the schedule allows, we can finish in 5 to 7 business days.
Yes. Our workmanship is covered for 12 months. If something isn't right with the finish we put on, call us and we'll make it right.