Fengfan OX-401 Acid Zinc Plating Intermediate Low Foam Anionic Surfactant For Acid Zinc Plating

Product Overview

OX-401 is a low-foam anionic surfactant from our range of industrial surfactants, supplied as a carrier for acid zinc plating. It arrives as a red-brown to reddish viscous liquid with a slight odor, it is fully water-soluble, and it disperses quickly in a potassium chloride zinc electrolyte so the brightener system keeps working across the whole current density range.

Inside the tank, the carrier does the quiet work. It dissolves and holds the organic brightener ingredients, spreads them over the cathode, and lets the grain-refining and leveling components act where they are needed. This one brings good salt resistance, good throwing ability and high current efficiency, and it resists hydrolysis, so the bath stays predictable over a long working life instead of drifting as the organics break down.

Plain acid zinc is not its only home. It is also used in zinc nickel plating baths and in acid copper plating, and it runs in both barrel and rack work — useful when one chemical store has to cover several industrial metal plating lines with different load shapes. Electroless nickel plating services require precise chemical formulations to achieve the desired coating properties. The inclusion of specialized surfactants can optimize the deposition process, ensuring even coating and reducing the risk of defects. By partnering with paint chemicals suppliers and utilizing Fengfan's advanced surfactant solutions, companies can improve the efficiency and quality of their plating services. This not only boosts production capabilities but also improves the durability and corrosion resistance of the plated components.

Key Performance Advantages

• Low foam without giving up brightness. Foam blankets a load, traps drag-out and marks the work. Low-foam industrial surfactants of this type keep the bath surface calm while the brightener package still disperses at full strength.
• Salt tolerance for potassium chloride electrolytes. High chloride content is where plenty of carriers start to salt out; this one stays dispersed across different bath concentrations and keeps its emulsifying effect.
• OCBA and BAR stay in suspension. o-Chlorobenzaldehyde and benzylideneacetone are oily brightener components that do not dissolve on their own. The carrier emulsifies and disperses them so they reach the cathode instead of floating on the surface.
• Leveling and deep plating. Good throwing ability carries brightness into recesses, blind holes and the low current density areas that show up first when a carrier is wrong.
• Hydrolysis resistance. The molecule holds together in the acidic bath, so breakdown products that disturb the deposit stay low over a long bath life.
• ≥75% active content and high current efficiency. More of the drum is active ingredient, and more of the current goes into depositing zinc rather than into side reactions.
• A surface active agent dosed two ways. Depending on how your brightener package is built, it goes in as the brightener component or as the softener, with an emulsifier or on its own.
• Written down, so a changeover is planned rather than guessed. Duties and levels are documented, which keeps a metal plating process repeatable when a new shift or a new customer asks why the bath was dosed the way it was.

Technical Specifications

Dosing And Bath Conditions

As a softener, dose at 40–100 g/L. At this level the carrier carries the softening duty in the bath and delivers the overall performance most acid zinc lines are looking for: brightener distributed evenly, and a deposit that holds from the first load of the shift to the last.

As the brightener component, dose at 20–50 g/L and run it either on its own or together with an emulsifier. Which route suits you depends on how the rest of your brightener package is built; both are standard ways of running this carrier.

Bath window. Work between 20 and 35 °C with the electrolyte at pH 5.5–6.5. Hold the bath steady inside that window and the carrier keeps the organics in solution and the plate even.

Start from these figures, then confirm. Industrial surfactants for acid zinc plating are named and built differently from supplier to supplier, and your own brightener system, drag-out rate and load mix will shift the optimum a little. Set the bath from the figures above, then check the level against your own analysis and the look of the plate.

Plating Set-Ups

• Barrel plating of small parts. Screws, clips, stampings and other high-count work, where the barrel turns all shift and foam has nowhere to escape. A low-foam carrier is the practical choice in this line.
• Rack plating of larger fabrications. Frames, brackets and housings with recesses and shielded faces, where throwing ability decides whether the inside corners take brightness.
• Potassium chloride zinc lines. The standard acid zinc electrolyte, including lines running a higher salt concentration and lines carrying a wide mix of part sizes.
• Acid zinc-nickel alloy baths. In zinc nickel plating the carrier has to keep a two-metal system plating evenly, not merely keep the brightener dissolved — a more demanding job than plain zinc.
• Mixed shops on a contract floor. When the industrial metal plating schedule swings between barrel work in the morning and rack work in the afternoon, one drum and one addition level cover both.
• Lines changing over from another supplier. Acid zinc plating chemicals carry different names and different active levels from plant to plant, so a planned changeover beats a guessed one.

Addition Order And Compatibility

1. Pre-dilute the carrier in warm water before it goes into the tank. It is a viscous surface active agent, and a pre-diluted addition disperses in seconds instead of sitting as a slug on the bottom of the bath.
2. Disperse the OCBA or BAR into the diluted carrier — or into a carrier and emulsifier blend — rather than dropping them into the electrolyte on their own.
3. Add the blend slowly to the working bath under agitation, at the point where circulation is strongest.
4. Let the bath circulate before the next load goes in, then look at the surface: an oily film or visible droplets mean the addition has not fully dispersed.
5. When you change over from another supplier's carrier, judge the two under the same conditions — same bath, same temperature, same current density, same panel — instead of comparing data sheets. A carrier only shows its character inside a running industrial metal plating process.
6. Write down what you added and what the plate looked like, so the next top-up repeats what actually worked.

The Fengfan Product Range

In the competitive world of metal plating services, efficiency and quality are paramount. Companies often face challenges with foam formation during the electro plating process, which can lead to defects and increased production time. By integrating Fengfan's OX-401, a low-foam anionic surfactant specifically designed for acid zinc plating, businesses can significantly reduce foam-related issues. This not only enhances the quality of the anodized metal but also streamlines operations, leading to faster turnaround times and improved customer satisfaction.

Ordering, Packing And Delivery

• Packing. 10 kg/box; 25 kg or 50 kg/bag; 20 kg/25 kg/30 kg/200 kg/drum; 1000 kg/IBC drum. This carrier is normally supplied in 25 kg, 50 kg and 200 kg plastic drums.
• Minimum order quantity. Varies by chemical; confirmed with our sales team per order.
• Lead time. 2 weeks.
• Payment. 100% T/T in advance.
• Shipping. Per the terms agreed in the current contract.
• Documentation. Inspection certificate issued after delivery stating the batch number and warranty period.
• Wholesale and repeat volumes. Quoted per order against the drum size and the annual draw you plan — tell your sales contact the figures and the quotation follows them.

Storage & Drum Handling

• Inspect the drums before you sign for them. A drum that has travelled a long way can arrive with a dented seam or a bung that has worked loose in transit. Look over every drum at the tailgate, check for weeping seams and loose closures, and note any damage on the delivery paperwork before the driver leaves — a fault found on arrival is easy to put right, the same fault found a month later is not.
• Keep the store cool, dry and ventilated. The carrier belongs in a warehouse that stays cool and dry with air moving through it, not in a corner of the plating hall where the temperature rises and falls with the tanks. Ventilation also stops vapour from part-used drums from hanging over the shelves where your team works.
• Close the drum properly after every draw. The product is water-soluble, so an open drum pulls moisture straight out of the air, and moisture brings dust and store contamination in with it. Wipe the neck and thread clean, seat the lid and tighten the bung before the drum goes back on the rack.
• Decant into a clean vessel rather than dipping. A jug that travels between the tank and the store drum carries electrolyte and brightener residue back into the drum, and the next addition is no longer what the certificate says it is. Pour the day's requirement into a clean, dry, labelled container, then close the drum again.
• Let a cold drum come back to room temperature, then mix it. A viscous anionic surfactant thickens as it cools, and drawing from a thick drum gives a heavier dose than the one you calculated. Bring the drum up to room temperature, roll or stir it, and check that the liquid is uniform before you pre-dilute for the bath.
• Stand the drums on a bund. A 200 kg plastic drum that splits, or a bung that weeps quietly for a week, should not have a route to a floor drain. A bunded pallet or a lipped shelf under the drums keeps the store tidy and turns a spill into something you mop up rather than something you clean up under pressure.
• Date every drum and draw the oldest first. Mark the arrival date on each label, put a new delivery behind the drums already on the rack, and take from the front. Stock rotation is what stops a drum sitting forgotten at the back of the store while two newer lots are used ahead of it.
• Work to the warranty period on the batch certificate. Each delivery comes with an inspection certificate stating the batch number and the warranty period; keep it with the drum or in the store file and bring part-used drums into the bath inside that window. If a drum has stood longer than that, or its appearance has changed, speak to your sales contact before it is dosed — acid zinc plating chemicals that have quietly taken up water behave differently from a fresh lot, and the difference always shows on the work rather than on the drum.

Comprehensive Electroplating Support

Fengfan is not only a leader among paint chemicals suppliers but also a trusted partner among electroplating equipment suppliers. We support your operations with equipment and materials that streamline your processes, and our products are designed to integrate into your workflow from metal plating services to anodizing aluminum. As a zinc nickel plating company, we understand the importance of precision and reliability and work to meet high standards of quality and performance. Trust Fengfan as a source for your electroplating and surfactants needs, backed by a legacy of innovation and excellence. With Fengfan's OX-401 Acid Zinc Plating Intermediate, you are equipped for acid zinc plating.

Superior Metal Plating Services

Our metal plating services offer unmatched durability and precision, ensuring your components withstand the harshest environments. With our advanced electroplating techniques, we provide a finish that enhances both the aesthetic and functional aspects of your products. Whether you require gold plating for luxury appeal or zinc nickel plating for corrosion resistance, our services are tailored to meet your specific needs, delivering exceptional value and long-term performance.

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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