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.
Surface preparation begins with knowing what metal is being processed. Aluminum, steel, stainless steel, brass, bronze and copper each require an alloy-specific review rather than one assumed preparation method.
Specify the dimensions required after plating.
Do not assume one pretreatment sequence applies to all metal families. The alloy designation and prior surface condition are necessary inputs for assessing substrate suitability.
Where heat-sensitive features or joined materials are present, disclose them before discussing post-plating treatment. The entire component must be suitable for the proposed cycle.
Provide the approved cleaning requirements if the component will be exposed to a specific chemical washdown.
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 aluminum housings, disclose prior anodizing or conversion treatments before the process is assessed.
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 aluminum covers and machined housings, also clarify alloy-specific activation and prior finish. 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. Keep aluminum housings apart from heavier items that could dent their edges.
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 aluminum covers and machined housings, the useful questions concern what the part contacts, how it moves, and which dimensions must remain within tolerance. Aluminum preparation depends on the specific grade and surface history.
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.
Prevent scratches on softer alloy surfaces.
Use clean handling methods and avoid metal-to-metal contact between coated parts. Individual compartments can reduce scratches and impact during movement. For aluminum covers and machined housings, 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. Handle aluminum faces with non-marring tools and avoid contact with harder parts.
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 Inglewood, 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.
Different alloys and grades can respond differently during preparation. Exact identification helps determine whether the substrate is suitable and what process questions need to be resolved.
They can be reviewed, but prior coatings, corrosion, repair work and contamination should be disclosed. The starting surface may affect preparation and process suitability.
State whether the requirement is a minimum, maximum or target range and identify where it must be measured. Include the drawing or standard that defines acceptance.
Electroless nickel forms through an autocatalytic chemical reaction and does not use an external electrical current. That changes current-distribution considerations, although the bath must still reach the surfaces that require coating.
Masking may be considered for areas used in electrical contact, joining or close-fit assembly. Mark the boundaries on the drawing and explain why each area must remain free of deposit.
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.