FF-5107 is an alkaline copper electroplating process for the first copper layer on zinc alloy die-castings — Zamak parts — and on aluminium that has already been through a zinc immersion step. It stands where a sodium cyanide copper strike normally stands: same place in the sequence, same working practice, and no free cyanide anywhere in the tank. Parts leave the copper tank with a fine, soft, tightly bonded layer and go straight on to nickel or another deposit.
A die-casting is not a flat, uniform surface. It has porosity, parting lines and areas that polish differently, and the copper goes on before the bright nickel and chrome that a customer eventually sees. This is the layer that actually grips the zinc alloy and covers it evenly enough for the next deposit to look right, which is why a small copper tank ends up deciding a large share of the final quality.
On a metal plating services line, the strike is the shortest step and the one most often blamed for a fault that started somewhere else. Getting it right means knowing exactly what it bonds to, how it is held in control, and what the parts look like when they leave it.
Adhesion is the first thing a die-casting plater checks, and the first thing this bath is built for. The copper bonds tightly to the zinc alloy, and because the deposit is fine-grained and soft rather than hard and stressed, it tolerates normal handling and re-racking without cracking or lifting at the edges.
The current window is wider than a cyanide copper bath gives you, and burrs are hard to grow in this plating solution — the copper builds evenly instead of treeing on high-current edges. That matters on castings with sharp parting lines, and it matters in a barrel where parts touch each other through every revolution. Dispersion and covering power are strong as well, so copper reaches around the back of a part and into recesses rather than sitting only on the face that sees the anode.
A soft, even copper is also what the nickel needs. A rough or stressed copper layer telegraphs straight through a bright nickel, and no amount of polishing afterwards fully hides it. The strike is not where you add thickness; it is where you settle the surface.
Two substrates are the core of this process. The first is zinc alloy die-casting — Zamak — where the copper is the base for nickel, nickel-chrome or another decorative and protective stack. The second is aluminium that has already been given a zinc immersion layer; without that zinc film the copper will not bond, so the immersion step belongs to the metal plating process and is not a shortcut you can skip.
Rack and barrel work are both metal plating techniques that run in the same bath. Rack work suits larger castings and parts that must stay untouched on one face. Barrel work suits small fittings in volume, where parts tumble over each other and the deposit has to build evenly without treeing. Some shops also use the bath as a strike ahead of a heavier copper build, taking the part through this layer first and then into a high-throw copper tank when the specification calls for thickness.
If the part is a die-casting with inserts, blind holes or a mix of thick and thin sections, say so when you enquire. Those are the geometries where the current per part and the racking arrangement need a second look before the first tank is made up.
| Parameter | Setting |
|---|---|
| Make-up, FF-5107M | 800–1000 ml/L; optimum 800 ml/L |
| Replenisher, FF-5107A | Used to add |
| Temperature | 45–55 °C; optimum 50 °C |
| pH | 10.5–12; optimum 11.0 |
| Cathode current density | 0.5–5 A/dm²; optimum 1.5 A/dm² |
| Anode | Electrolytic copper |
| Anode area : cathode area | 1.5–3 : 1; optimum 2.5 : 1 |
| Filtration | Continuous |
| Agitation | Air or mechanical agitation; air agitation preferred |
A car is hard on plated die-castings. Door handles, badges, grille surrounds, mirror housings, wiper and lock parts all see road salt, stone chips and repeated temperature swings, and the nickel-chrome above them only survives if the copper underneath is bonded and continuous. That is the job this bath does in automotive work: a fine, soft copper strike on the Zamak casting that covers the porosity every die-casting carries and gives the bright nickel something sound to grip.
Aluminium trim and brackets that have been through a zinc immersion step take the same copper before their nickel layer. Where a part combines a thick section and a thin one — a common shape in die-cast brackets — the rack layout and the current per part matter more than the bath itself, and a first article is worth setting before the run rather than after it.
Shops supplying automotive metal plating services usually qualify a new copper strike on a production part rather than a test panel, because the casting is where adhesion problems actually show. Deep recesses and thin sections are the first places a weak strike reveals itself. Electroless nickel plating is the usual route for gears and shafts that need better wear resistance and corrosion protection, while zinc nickel plating holds up well on parts that see harsh service conditions. Lightweight aluminum parts can take an anodized layer for the same reason, adding a hard protective surface without adding weight. Used together, these finishes help automotive components hold their tolerances and performance over a longer service life and cut down on maintenance.
Aerospace work that touches this bath is usually hardware rather than flight-critical structure: instrument housings, brackets, ground-support fittings and aluminium components that arrive with a zinc immersion layer. The copper does the same job there as anywhere else — it bonds to the substrate and gives the following nickel a continuous base — but the qualification route is different, and that is the part worth planning for.
Vibration, thermal cycling and long service intervals punish any weakness at the interface. An adhesion failure that would be a cosmetic reject on a domestic fitting becomes a finding on an aerospace part, so the condition of the substrate before the copper goes on matters as much as the bath. Confirm the aluminium carries a proper zinc film, confirm the casting alloy and its surface preparation, and confirm which specification the finished part has to meet before any plating chemicals are ordered for the job.
Where a part falls under a customer or airworthiness specification, the drawing and the approved process route govern. Treat this as the copper step within that route and get the sequence signed off before the first production tank is made up. Anodizing aluminum is standard for aircraft parts that must resist corrosion and wear under extreme conditions, and passivation of stainless steel gives steel components the corrosion resistance they need in high-stress service. Specialized coatings add a further layer of protection against environmental exposure. Specifying these finishes early in the design stage helps components perform reliably and supports the safety and efficiency targets aircraft programs are judged against.
On decorative work the copper is invisible and still decides the finish. Taps, shower fittings, furniture hardware, buckles, handbag fittings, watch cases, lamp parts, camera bodies and laptop hinges are usually Zamak or zinc-immersed aluminium underneath, and the gloss a customer sees in a showroom is a bright nickel-chrome sitting on a copper layer that was even to begin with.
A copper strike that is thin in one area and heavy in another telegraphs through the bright nickel as a wave or a shadow, and polishing after plating only moves the problem around. The metal plating techniques that produce a consistent finish start here: the same current density on every part on the rack, the same distance to the anode, and a copper layer that covers the whole face rather than the side facing the anode.
Decorative runs are also where appearance matching across a batch matters. If the copper varies from load to load, the nickel-chrome varies with it, and the difference becomes obvious only when the parts sit next to each other on a display. Holding the bath at the same temperature, pH and addition routine is what keeps a batch looking like one batch. Anodized surfaces are chosen as much for how they look as for how they wear, and aluminum anodizing opens up a range of colors and finishes that help a product stand out on the shelf. Gold plating adds a premium touch to high-end devices and raises perceived value. Consistent finish quality across a production run is what protects the brand image, so it is worth agreeing the finish standard with your supplier up front.
| Term | Arrangement |
| Payment | 100% T/T in advance |
| Order quantity | Varies by chemical; confirmed with our sales team for each order |
| Lead time | 2 weeks |
| Packing | 10 kg/box; 25 kg or 50 kg/bag; 20 kg, 25 kg, 30 kg or 200 kg/drum; 1,000 kg/IBC drum |
| Shipping | Per the terms agreed in the current contract |
| Documentation | Inspection certificate issued after delivery, stating the batch number and warranty period |
| Bulk and custom orders | Quoted per order — confirm pack size, labelling and repeat volume with your sales contact |
Fengfan has worked in surface finishing since 1984, from Wuhan, and supplies plating chemicals and process packages rather than a single tank's worth of chemistry. The range runs across the chain a plating shop actually operates: pretreatment and degreasing, zinc and zinc-nickel brighteners and intermediates, copper and nickel processes, electroless nickel, tin, silver, gold and palladium, passivation, aluminium anodizing chemicals, electrophoretic coatings and nano protection.
That breadth is the practical reason buyers stay. A copper strike does not stand alone — it sits between a pretreatment line and a nickel tank, and when those three come from the same source the sequence is matched instead of guessed at. A shop building a full stack for metal plating services can settle a bonding problem across the interfaces rather than arguing about which tank caused it.
Every batch is recorded under its own number before it leaves, so a question about a particular drum can be traced back to what went into it. If a bath behaves out of character, that record is where the conversation starts. Because the same non-cyanide alkaline copper plating solution carries a line from stainless steel passivation through to alodine coating and aluminum anodizing, buyers can standardize on one chemistry across several processes instead of sourcing each one separately. Automotive, aerospace and electronics operations all run it, which keeps quality benchmarks consistent from one project to the next and makes it easier to take on work outside a single sector.
Our non-cyanide alkaline copper plating solution takes cyanide out of the copper bath, giving platers a safer and more sustainable route through the process. Removing cyanide lowers the environmental load of the line and reduces the hazards employees handle day to day, which matters to buyers working against corporate sustainability targets. It is a copper plating route that can be defended internally without giving up results in the tank.
Copper deposited from the non-cyanide alkaline solution builds a durable, well-leveled surface that resists corrosion and wear, so components last longer and maintenance and replacement costs come down. The finish suits parts heading into anodized aluminum and anodized metal work, where it holds both performance and appearance over long service. For buyers weighing a switch, the practical test is a trial run on your own parts against the finish standard you already accept.
Choosing the right match is where most sourcing decisions stall. As a trading supplier, we keep one point of contact from first enquiry to after-sales: tell us what you are making and the conditions you work under, and we shortlist the closest matches from our supplier network, compare specifications and arrange samples before you commit to a bulk order. If something does not behave as expected, we work with the supplying partner on the cause and a practical fix, and stay with the case until it is settled. Email, WeChat or WhatsApp enquiries get a reply within 24 hours.
Zinc alloy die-castings — Zamak — are the main substrate, and aluminium that already carries a zinc immersion layer is the second. Both run in the same bath, on racks or in a barrel. Raw aluminium without the zinc film is not a direct substitute: the immersion step is part of the metal plating process, and skipping it is the usual reason a copper layer on aluminium fails to bond.
Yes. The process is used the same way and performs the same job as sodium cyanide copper, so the position in the sequence, the electrolytic copper anodes and the agitation arrangement stay as they are. There is no free cyanide in the tank to titrate or to treat in the rinse water, and the current window is wider than a cyanide bath gives you, which usually shows up as fewer rejects at the edges of a rack.
No — the copper goes into the nickel bath without a film-removal step in between. The surface the bath leaves is not hydrophobic, so it wets out normally and the next deposit can go straight onto it. The sequence is copper, rinse, nickel, with no deoxidising or activation tank slotted in the middle. Lines converted from other copper systems often keep that tank in place out of habit; where the copper comes from this bath, it is not doing anything for the work.
That holds for both ways of running the tank. On rack work the parts stay on the rack from the copper tank through the rinse and into the nickel, so there is no re-racking just to strip a surface film, and on barrel work the load transfers in the same barrel with the same handling. Rinsing still has to be done properly — a clean rinse after the copper is what keeps alkaline copper out of the nickel bath, and that is a rinse question rather than a film question.
Operators can confirm the surface is ready with a water-break check: rinse water should sheet evenly across the copper instead of pulling back into droplets. If it beads, look at rinse quality and how the parts have been handled before adding another tank to the line. Parts that have stood between steps or been touched bare are a separate case, and normal pre-nickel cleaning covers them. If you are laying out a new line or changing what follows the copper, tell us the substrate and the nickel bath you are running and we will confirm whether anything in your particular sequence needs a pre-dip.
With one replenisher, added as the bath consumes it. There is no multi-part addition to balance, which is why the process stays steady across a shift with ordinary pH and temperature checks. What you keep on the shelf for it is a short list of plating chemicals: the make-up concentrate and the replenisher.
Covering and throwing power are strong, so the copper reaches into recesses, slots and the back faces of a casting rather than sitting only where the anode can see it. Very deep blind holes still depend on racking and on the current you can put through the part, so set a first article on your own geometry before a full run — in industrial metal plating, a reject usually starts as a current distribution problem, not a bath problem.
Three things: the exact substrate — which die-casting alloy, and whether the aluminium carries a proper zinc immersion layer — the tank's filtration and agitation capacity, and the current density your rack or barrel loading allows. Run a trial on production parts rather than test panels. The plating process is straightforward; the part geometry is what varies, and it is cheaper to find that out on ten pieces than on a full tank.
