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.
When an order includes several alloys, each part number needs its own material identification. Similar appearance does not establish that components can share the same pretreatment sequence.
Account for the condition of the starting surface.
Mixed-metal orders should list each alloy and part number separately. That information helps determine whether components need different preparation or separate process handling.
Low-phosphorus chemistry may be considered for some hardness-oriented requirements. The specified properties and any heat-treatment request should be checked against the base alloy.
List prior coatings, oxides or conversion treatments that may be present on the surface.
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 discussion may include phosphorus range, dimensional allowance and special surface requirements. If PTFE composite or a heat-treatment cycle is requested, explain the performance objective and provide the governing specification. For couplings, identify the fluid medium and the internal surfaces that must remain functional.
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.
A process route is selected only after the material grade and coating callout are understood. Prior finishes, masking notes and the required thickness help determine what preparation questions must be resolved. For fluid-line adapters and couplings, also clarify internal surfaces and media compatibility. If a requirement is unclear, resolve it against the drawing before approval.
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 the project is authorized for shipment, label each part number and protect threads, bores and machined surfaces. Dividers or individual wrapping help prevent movement inside the package. Cap fluid couplings only with clean protective covers approved for shipment.
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 industry label does not define the coating requirement by itself. For fluid-line adapters and couplings, the useful questions concern what the part contacts, how it moves, and which dimensions must remain within tolerance. Fluid media and flow paths should be included in the part's service 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.
Over three decades of plating, one shop in Oceanside.
Every part is stripped, prepped, plated and inspected in our own building, and our work comes with a 12 month workmanship guarantee. Send photos and we'll take it from there.
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.
Protect the finish during final assembly.
Use clean handling methods and avoid metal-to-metal contact between coated parts. Individual compartments can reduce scratches and impact during movement. For fluid-line adapters and couplings, keep internal openings free of packing debris.
Inspect the part according to its normal maintenance plan, especially where corrosion or mechanical contact is part of the service. Unexpected wear or surface damage should be evaluated. Avoid unapproved chemical substitutions during cleaning. Inspect coupling interfaces before reconnecting fluid lines or pressure systems.
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 Imperial Beach, 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.
The plating facility is located in Oceanside, California. Projects outside the area can be considered for shipment, subject to part suitability and the confirmed order scope.
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.
Yes. Open and accessible features can be evaluated, while sealed cavities, restricted channels and trapped volumes require specific review. A detailed drawing helps define the intended coverage.
A PTFE composite may be evaluated when lower friction or dry lubricity is needed. Share the load, motion, temperature and counterface material so the option can be assessed for the actual application.
It may be considered, but the fluid, concentration, temperature and exposure duration should be identified. A broad description such as chemical service is not enough to assess suitability.
Identify thickness measurement locations, dimensional checks, test methods and any report or certificate required. These acceptance details should be available before the quote is finalized.
Aluminum may be evaluated, but the exact alloy and existing surface condition matter. Preparation is substrate-specific, so share the grade and any previous anodize or conversion treatment.
Not at all. Most of what comes through our door is home and business hardware: faucets, light fixtures, door handles, cabinet pulls, railings and decorative pieces. We also work for hotels, restaurants, boat owners and manufacturers.
Tell us what the part is, roughly how big it is, how many pieces you have and the finish you're after. If you know the metal, mention it. If not, that's fine. We can usually tell from the photos.
Every part is quoted on its own. The biggest factors are condition, the base metal, size and shape, the finish you choose and how many pieces you send. A part with deep pits or broken spots takes more work before it can be plated.