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.
For a component with close tolerances, coating thickness must be treated as a dimensional input. Electroless nickel adds material to exposed surfaces, so bores, mating faces and threads should be called out before production planning.
Set priorities before selecting the deposit.
A detailed drawing helps the shop assess the relationship between coating coverage and part function. Call out threads, mating faces, bores and any hidden surfaces that have a specific coating requirement.
Where a specification includes post-plating heat treatment, the base alloy and prior heat history need to be known. The treatment can affect the substrate, so it must be evaluated before production.
Quantity and production status are useful context. Note whether the parts are prototypes, a one-time repair or a recurring production order, and identify any sample approval requirements.
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.
The process team can evaluate low-, medium- or high-phosphorus chemistry alongside the component's service conditions. PTFE composite and heat treatment remain application-dependent options.
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.
Existing coatings or prior repair work should be disclosed before parts are accepted. The starting surface may affect the preparation sequence and process suitability.
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.
When shipment is authorized, label each part number and protect threads, bores and machined surfaces. Use dividers or individual wrapping to prevent movement inside the package. Label copper-alloy parts by exact grade if multiple alloys are included in the same package.
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.
The relevant application is defined by what the component does. For copper-alloy fittings and brass hardware, review the operating environment, contact conditions and dimensional limits rather than relying on the industry name alone. Copper-alloy parts should be listed by grade rather than grouped under a general copper description.
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.
You don't have to live nearby to work with us.
Customers all over the country pack their parts and ship them to our Oceanside shop. We finish them, inspect them and send them back insured. It starts with a few photos.
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 precision features safe during handling.
Use clean handling practices and prevent metal-to-metal impact between coated pieces. Individual wrapping or dividers can reduce abrasion during movement and storage. Avoid direct contact with unverified cleaning compounds during unpacking.
If the component operates in a corrosive or abrasive environment, inspect it according to the equipment maintenance plan. Unexpected wear or surface damage should be evaluated rather than ignored. Avoid unapproved chemical cleaners on copper-alloy components; follow the equipment or process specification.
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 Fontana, CA, and elsewhere in the United States may be shipped after the quote and receiving instructions are confirmed. Protect precision surfaces and identify 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.
The plating facility is located in Oceanside, California. Projects outside the area may be considered for shipment, subject to part suitability and the confirmed order scope.
Other cities appearing in the supplied service-area list include:
Frequently Asked Questions
These answers cover coating chemistry, substrate review, dimensions and practical details that can help define a plating request.
A PTFE composite option may be considered when reduced friction or dry lubricity is required. Its suitability depends on the component's load, movement, temperature and operating environment.
The typical quote turnaround is 24 to 48 business hours once the required project information is available. Drawings or material details that need clarification can affect the review time.
Used parts may be reviewed, but prior coatings, corrosion, wear and contamination need to be disclosed. Photos and a description of the part's service history help assess its starting condition.
Provide a section drawing with channel dimensions and identify the required coated surfaces. The process team can then assess whether the bath can reach and exchange through those features.
No. The nickel-phosphorus deposit forms through an autocatalytic chemical reaction. This changes current-distribution considerations, but the surface still needs suitable preparation and access to the bath.
Yes, and most of our work starts that way. We strip the old plating down to the base metal, repair what needs repair, then plate it fresh. New plating over a failing layer never lasts, so we don't do it.
We do. Along with single pieces for homeowners, we run batches of hundreds or thousands of parts for companies in California and other states. Send a photo of a sample, the quantity and the finish, and we'll quote the whole run.
Steel, stainless steel, aluminum, brass, bronze, copper, pot metal and zamak. Some of them need extra prep so the plating bonds well, and we'll tell you up front if your part does.