Fengfan Rack Nickel Plating Chemicals Get The Good Brightness Fast Nickel MAX 870

Product Overview

This package is a three-part additive system for rack bright nickel plating: an A brightener, a B softener and the Y1 wetting agent, all dosed into a conventional nickel sulfate–chloride bath. It is built for medium and high-grade work — parts whose surface is seen, handled and often polished or chrome-plated afterwards — where the deposit has to come up bright quickly and stay consistent from the first rack of the shift to the last.

Dosing the brightener and the softener separately is the practical advantage on a busy line. Push the A component when gloss and levelling need to come up fast; lean on the B component when the part has to survive bending, forming or a thermal cycle without cracking. The wetting agent keeps the deposit free of pinholes and gas marking. Together they replace the two-additive packages many rack lines still run, and they go into the bath and the tank you already have rather than requiring the line to be rebuilt around them.

Bath Composition & Operating Window

Key Features

• Brightness comes up fast. A rack reaches a full bright finish in less plating time than with slower conventional brighteners, so the same tank turns more work per shift without pushing current density to the ceiling.
• Filling and levelling across the whole part. Good filling performance, strong dispersing ability and a bright covering power carry gloss into shallow recesses and around edges rather than only across the flat faces facing the anode.
• High concentration, low consumption. The additives are concentrated, so replenishment volumes stay small per ampere-hour and the cost per rack is easier to hold down than with dilute packages.
• A wide, stable current window. Appearance holds from the low-current areas of a rack to the high-current edges, which is what a nickel plating company needs when one rack carries parts of very different surface areas.
• Tolerant of impurities and water-quality swings. Baths that see drag-in, a change of make-up water or the occasional badly rinsed load keep producing saleable work instead of being dumped and rebuilt.
• Consistent from drum to drum. The concentrates are produced as electroplating chemicals to a fixed formulation, so a fresh drum behaves like the last one and operators are not re-tuning the bath after every delivery.
• Built for medium and high-grade work. The deposit stays ductile enough for light forming and polishing, which keeps the reject rate down at the finishing bench and makes the metal plating process easier to hold on a repeatable schedule.

Additive Consumption & Replenishment

Where It Fits on the Line

• Decorative plumbing and sanitary fittings. Faucet bodies, shower parts and brassware that carry a bright layer under chrome; levelling matters here because the chrome shows every ripple the nickel leaves behind.
• Automotive trim and hardware. Grilles, badges, brackets and interior fittings plated on racks and judged against a master sample under showroom lighting.
• Consumer electronics housings and metal covers. Bezels, covers and shielding cans that need an even bright layer before a decorative topcoat or a light lacquer.
• Jewellery, eyewear and fashion hardware. Costume pieces, frames and buckles where colour consistency across the rack decides whether the lot ships.
• New electro nickel plating lines and line expansions. A bath that has to be productive in its first week, with a window wide enough that operators can learn it while the line is already running.
• Job shops selling nickel plating services. Mixed orders, changing substrates and short runs, where one predictable additive package is worth more than a cheaper drum that needs constant correction.
• Racks carrying mixed part sizes. Small fittings and large covers on the same flight bar, where the metal plating process has to stay uniform from the low-current shadow areas to the edges nearest the anode.

Bath Control & Maintenance

Bright nickel baths rarely fail because of the additive; they fail because the support equipment drifted. Keep the recycle filter running for the whole shift — an intermittent filter lets solids reach the cathode and they show up as roughness that no amount of brightener will cover. Cathode movement or air agitation has to be even across the rack: dead spots produce dull patches in the low-current areas, and too much air at the surface whips up a mist that carries drag-out onto the busbars.

pH climbs as nickel deposits and hydrogen evolves, so check it at the start of each shift and bring it back with dilute sulfuric acid rather than letting it sit at the top of the window, where covering power goes first. Temperature behaves the other way: the upper half of the range brightens faster and conducts better, the lower half throws further into recesses and keeps the deposit more ductile. Pick one and hold it, because a bath that swings between the two never settles into a repeatable finish.

Keep the anode area in step with the cathode load so the anodic current density stays inside its own window; a starved anode polarises and the nickel concentration falls away slowly enough that nobody notices until brightness drops. The wetting agent is the cheapest insurance on the line — at the low end of its dose you will see pinholes and gas marking on the top edges of the rack. Dose by ampere-hours rather than by eye; it is the only way the A and B ratio stays where you set it. In our technical support work, most electro nickel plating problems we are asked about trace back to one of those five points.

Converting to This Process

1. Analyse the bath before changing anything: nickel metal, chloride, boric acid, pH and any obvious contamination. A bath that is already out of balance will not show what the new additives can do.
2. Stop dosing the previous brightener and softener and let the bath keep running so the old package depletes. This is the step nickel plating services teams most often rush, and it is the one that decides whether the changeover is smooth.
3. If you cannot wait for it to wash out, replenish with the A and B components at a 1:1 ratio to carry the tank over, then return to the normal A:B relationship as the old additives fade.
4. Top up to the working volume so the nickel salts sit where a bright nickel plating bath needs them before the first production rack goes in.
5. Set filtration and agitation first — continuous recycle filtration and even cathode movement or air — because no additive compensates for a bath that is not being filtered.
6. Plate a test rack of your most awkward part and compare brightness, levelling and coverage against your current standard before releasing the line.
7. Trim the A:B ratio to the finish you want: more A for gloss and levelling, more B for ductility and stress control.

Documentation, Safety & Storage

Every drum ships with the paperwork a plating shop needs for its own records — the batch documents that travel with the delivery, so what sits in your store can be traced back to its batch. Anything else your quality system files against an incoming chemical can be requested with the order.

Storage follows normal practice for liquid nickel additives. Keep the drums closed and upright in a frost-free, shaded area, away from acids and oxidisers, and use them within the period marked on the label. The wetting agent is preferably kept in its own container and measured with its own vessel so it stays clean.

On performance: the process gives a bright, level and ductile nickel deposit. Final appearance and corrosion resistance depend on the layers around it — the underlayer, the chrome or passivation on top and the thickness you build — so if you have a salt-spray or appearance target, send the test method and the acceptance criteria and we will tell you what layer build the job needs. Deposit thickness is set by time and current density on your line, not by the additive.

Supply & Ordering

• Payment. 100% T/T in advance.
• Minimum order quantity. Varies by chemical; confirmed with our sales team per order.
• Lead time. 2 weeks.
• Packing. 10 kg/box; 25 kg or 50 kg/bag; 20 kg/25 kg/30 kg/200 kg/drum; 1000 kg/IBC drum. Drums and IBCs are the usual format for liquid plating chemicals, and we confirm the right one with you when the order is placed.
• Shipping. Per the terms agreed in the current contract.
• Documentation and warranty. An inspection certificate is issued after delivery stating the batch number and warranty period.
• Trials. Ask your sales contact about sample availability and the trial quantity of these electroplating chemicals that suits your line before you commit to a full drum.

About Fengfan

Our parent company, Wuhan Fengfan Electrochemical Technology Co., Ltd., was founded in 1984 and has spent the years since on electroplating-additive research, development and manufacture; Fengfan International Trade is its wholly owned subsidiary and the export arm behind this catalogue. The Fengfan Tech Park in Wuhan's Dongxihu District covers about 67 acres with roughly 7,000 m² of floor space and an annual production capacity of 3,000~5,000 t of surface treatment additives — enough to keep large industrial buyers in rack nickel plating chemicals supplied year-round, and enough that a nickel plating company placing a bulk order is not waiting on a batch that has to be made from scratch.

Production runs under clean production verification approval, standardised safety production and a 6S site management system, with a classified logistics system for materials. Our technical side sits on the Science Technology Commission of the China Surface Engineering Association and the vice-chairmanship of its electroplating commission; our specialists have published more than 100 technical papers since 1980, hold more than 20 patents, and R&D runs through a dedicated electroplating pilot test laboratory. Answers on conversions, bath failures and deposit appearance come from that team.

Related Process Chemicals

• Fengfan Brightener for SZ-30B Sulfate Zinc Plating — brightener for sulfate zinc baths.
• Fengfan Bright Zinc Alkaline for Rack and Barrel Plating ZN 50 — alkaline zinc additive for rack and barrel work.
• Fengfan Brightener for Cyanide-Free Alkaline Zinc Plating ZN-500 — cyanide-free alkaline zinc brightener.
• Fengfan Phoenix EB 204A-204B Divalent Tin Salt Electrolytic Coloring Additive — electrolytic colouring for anodized aluminium.
• Fengfan Phoenix Seal 149-L Middle Temperature Sealing Agent for Aluminum Anodizing — mid-temperature sealing after anodizing.
• Fengfan Phoenix Seal 149-T Medium Temperature Sealing Agent — medium-temperature anodizing seal.
• Fengfan High Deposit Brightness Copper Plating FI-970 Bright Acid Copper Plating Process — bright acid copper for high-deposit-brightness work.
• Fengfan Wood Stone Concrete Nano-Protective FF-4219 — nano protective treatment for wood, stone and concrete.
• Fengfan Nickel Purify P3 — purifier for contaminated nickel baths.
• Fengfan Environmentally Friendly Chrome Mist Inhibitor FF-116 — mist suppressant for chrome plating tanks.
• The wider catalogue covers electroplating chemicals for zinc, copper, nickel, chrome and alloy systems, plus pretreatment and post-treatment, so most of the metal plating process can be supplied from one place — and the plating chemicals range is backed by the same technical team that supports this nickel process.

Deposit Inspection & Fault Response

1. Keep a signed master panel from a known-good run, with the deposit thickness written on it and the viewing light noted, so every suspect rack is judged against a physical standard rather than memory.
2. When a load comes out dull, hazy or rough, do not add brightener first. Note whether the fault follows the rack, a position on the flight bar or the whole bath — that one observation separates a contact problem from a chemistry problem.
3. Check contacts, hooks and rack coating before anything else. A part that is dull only where the hook touches, or bright on one side of the rack and dull on the other, is a current-distribution fault, not an additive fault.
4. Confirm the recycle filter has run for the whole shift and that the filter body is not bypassing. Roughness that feels like fine grit usually means solids are reaching the cathode, and more brightener will only change the colour of the roughness.
5. Check agitation across the rack. Dull patches in recesses or on the side facing away from the anode point to dead spots or air that is not reaching the work; pinholes and gas marking along the top edge point to a wetting-agent dose at the low end.
6. Read pH and temperature against the working window before touching the A:B ratio. Haze that appears with pH near the top of the range, and dullness that appears when the bath is cool or under-agitated, are bath-condition faults rather than brightener faults.
7. Plate a test coupon at the low and high ends of the current density range. Dullness at low current supports covering power, contamination or weak agitation; roughness at high current supports filtration, anode condition or too much current for the rack.
8. Only after those checks, adjust the MAX 870A : MAX 870B ratio. If iron or copper is suspected, treat the bath with a nickel purifier and confirm with analysis instead of masking the problem with more brightener. Record the outcome with the rack — deposit thickness by coating gauge or cross-section, appearance against the master under the same light, adhesion by a bend test, and any corrosion result with the salt-spray method, thickness and topcoat written down.

Chemical Compliance Profile

• The published bath is a nickel sulfate–chloride system: nickel sulfate 180–250 g/L, nickel chloride 45–55 g/L and boric acid 45–55 g/L, with MAX 870A brightener, MAX 870B softener and Y1 wetting agent.
• The bath formula does not list cyanide or hexavalent chromium compounds. This is a nickel process, so the main regulated metal is nickel rather than chromium; check your pretreatment, passivation and chrome steps separately instead of treating the whole line as covered by one statement.
• The current safety data sheet for this product gives the hazard classification, handling precautions, PPE and first-aid measures. Ask your sales contact for the version that matches your market and keep it with the bath records.
• We do not issue blanket REACH or RoHS certificates across our plating chemicals range. When you need a statement for this product and a specific destination, ask for it with the product name and market, and we will issue it against that scope.
• Nickel-bearing rinse water and spent bath need nickel removal before discharge. Plan the wastewater route before you convert the tank, particularly if the line currently runs cyanide zinc or chrome chemistry with different treatment.
• Standard export packaging is used for the liquid additives. Ask for the label language, pack size and any transport classification you need for importing this product; the details are confirmed on the order.

Technical Support & Model Matching

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.

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