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.
A precision drawing should separate coated areas from surfaces that must remain bare. Masking, contact interfaces and critical dimensions are easier to evaluate when they are marked before quoting.
Treat thickness as part of the fit calculation.
Mark each surface that must remain uncoated, including electrical contacts, joining areas and tight-fit interfaces. Clear masking notes reduce ambiguity during the process review.
Heat treatment after plating is a qualified option, not a standard requirement. It must be reviewed for the base metal and the exact hardness or specification requirement.
For a mixed order, group the packing list by part number and material grade. Different alloys may require different preparation.
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 technical review can consider deposit chemistry, coating build, masking and optional composite or heat-treatment requirements. Each option must be evaluated against the component's material and function. For replacement components, disclose prior service exposure and any previous surface treatment.
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.
Start with the current drawing and exact material designation. The shop can then assess surface condition, coating allowance and any special treatment or inspection requirements. For replacement components for industrial machinery, also clarify prior service condition and surface history. Any optional process step must be supported by the component specification.
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.
Once scheduling is confirmed, package each component to prevent abrasion and impact. Identify the order clearly and separate parts with different drawings or material grades. Include a condition note for refurbished components so receiving can compare them with the quote scope.
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.
Application planning should connect replacement components for industrial machinery with a measurable requirement. Corrosion resistance, wear behavior, friction and dimensional fit are separate objectives and should be described individually. Repair components need a review of the starting condition before a new coating is specified.
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.
Maintain inspection-critical dimensions.
Do not stack precision parts directly against each other. Use separators around mating faces, threaded features and delicate projections. For replacement components for industrial machinery, prevent loose hardware from contacting finished faces.
Where the component sees repeated washdown or sliding contact, maintenance intervals should reflect those conditions. Seek a technical review if service differs from the original specification. Do not use abrasive methods without confirming suitability. Inspect refurbished parts against the condition documented before processing.
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 Hoover, AL, 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.
Customers across the United States may request an evaluation. Shipment should be arranged only after the project has been reviewed and accepted.
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.
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.
Standard production is generally 3 to 5 weeks after the order is approved and scheduled. The current schedule should be confirmed with the quote because process scope and shop capacity can affect timing.
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.