Fengfan OX-201 Potassium Chloride Zinc Plating Intermediate High Temperaturer Carrier

Product Overview

OX-201 is a high-temperature carrier for potassium chloride acid zinc plating — one of those acid zinc plating chemicals that quietly decides how well the rest of the brightener package performs. Its job in the bath is solubilisation: the organic brightener will not stay dissolved in an acid zinc electrolyte on its own, and this carrier holds it there so it reaches the work instead of separating in the tank.

We supply it as a yellowish to yellow viscous liquid, water-soluble, with a solids content of at least 60% and a cloud point of 95 ℃ or above in a potassium chloride zinc bath. A 1% water solution sits at pH 4.0–7.0, close enough to normal acid zinc operating conditions that the product itself does not push the bath around.

Two kinds of buyer use it. Metal plating shops add it to an acid zinc line that runs warm, because in a bath that is not chilled the brightener has a habit of coming back out of solution. Formulators buy it as a chemical intermediate, building it into brightener systems of their own where a high cloud point and strong solubilising power are the requirement.

The question it answers is the same in both cases: how do you keep an organic brightener dissolved, evenly distributed and working, in a bath that is warm, heavily salted and full of chloride?

Bath Function & Application

• Solubiliser for the brightener. OX-201 is the chemical intermediate that keeps the organic brightener in the plating solution. Without a carrier of this type the brightener separates, and the money already spent on it never reaches the part.
• Cloud point control. The carrier raises the cloud point of the bath. Everything above that temperature is where the brightener package starts to come back out of solution, so a higher figure is direct working room for a line that runs warm.
• Brightness at medium and low current density. Low current density areas — recesses, shielded faces, the centre of a barrel load and the lower end of a deep part — are the last places to receive current in the process of electroplating, and they are the first to go dull. This carrier is used specifically to keep them bright.
• Surface active agent behaviour. A solubiliser of this kind works the way a surface active agent works: it keeps an organic phase dispersed through an aqueous one, so the brightener stays evenly distributed instead of collecting on the surface or on the tank wall.
• High-temperature carrier duty. Where a plant cannot cool the bath, or chooses not to pay for chilling, this is the component that keeps the plating process steady as the temperature climbs.
• Water-soluble, so it doses cleanly. It mixes into the working volume with ordinary agitation. There is no solvent coupler to flash off and no separate pre-dissolve step before the brightener goes in.
• Added as part of the package, not on its own. The addition level is set against the brightener system you run and the temperature you work at, so we confirm a starting point for your bath rather than quoting a figure lifted from a different line.

Specifications

Performance Characteristics

• Solids ≥60% — a concentrated carrier. More of the drum is active material and less is water, so each addition loads the bath with less dilution and a drum carries further between replenishments.
• Cloud point ≥95 ℃ — the figure to hold against your bath temperature. Compare it with the hottest your bath actually reaches on a bad summer day, not with the average; that gap is the margin the brightener has before it separates.
• pH 4.0–7.0 on a 1% solution. The reading describes the product at working dilution rather than the bath, and at normal addition levels it leaves the operating pH of an acid zinc bath where it already is.
• Water-soluble at working strength. No coupler goes in first and no solvent smell comes off the tank; the carrier goes straight into the working volume and disperses with the agitation you already run.
• Viscous liquid form. It pumps and pours, so a drum can be emptied with a drum pump rather than tipped; a cold drum is slower to move and easier to handle once it has reached room temperature.
• Aimed at the warm end of the acid zinc plating chemicals range. Where a standard carrier would already be separating at shop temperature, this grade holds the bath steady. It keeps the plating process running without extra cooling.

System Fit & Compatibility

OX-201 is built for potassium chloride acid zinc baths and for the brightener packages used in them. It is not a universal additive: an alkaline zinc bath runs on different chemistry and needs different intermediates, and a zinc-nickel electrolyte is a separate case again. If you work in either of those, say so and we will point you to the grade that fits rather than sell you this one.

Inside an acid zinc line the carrier sits underneath the brightener system. It does not replace the brightener, the wetting agent or the bath purifier — it keeps them available and working. That is why a change of carrier can shift the balance of a whole bath, and why it is worth testing before a full drum goes in.

A practical comparison against the carrier you run now comes down to four lines on the specification sheet: solids, cloud point, pH at working dilution and physical form. Close matches on all four are the strongest sign that a straight substitution will behave predictably. A wide gap in cloud point is the one to look at first, because that is where the working window of the bath changes.

The quickest confirmation is a Hull cell panel. It reproduces the process of electroplating across the full current density range in miniature, and the low current density end tells you what you need to know: bright and even means the carrier level is right, dull or hazy means it is not. Because a carrier is a surface active agent system, the result also depends on the brightener you pair it with, so run the test with the brightener that will actually be in the tank.

If it helps, send the specification sheet of the carrier you use today. Lining the two up side by side takes a few minutes and is usually faster than trial-and-error adjustment on a production line. We supply metal plating plants on rack, barrel and continuous lines, and the same range covers alkaline and cyanide-free alkaline zinc processes, sulfate zinc, acid copper and aluminium finishing, so a plant running more than one zinc system can be supplied in one place.

Packing, Storage & Handling

1. Check the drum against the paperwork on arrival. The label carries the grade and the batch number; match both before the drum goes into stores, and note any damage to the closure in transit.
2. Store it upright, closed, cool and dry. A ventilated store away from direct sun keeps a viscous carrier easy to pump; a drum that has been sitting in the sun thickens and takes longer to transfer.
3. Bring a cold drum up to room temperature before dosing. It flows better and measures more consistently at normal shop temperature than straight off a cold truck in winter.
4. Decant with a drum pump rather than tipping. A drum pump keeps the pour controlled and keeps the operator away from the liquid, which matters on a 200 kg container.
5. Close the drum after every dose. Dust, moisture and workshop grit that get into an open drum end up in the plating solution at the next addition.
6. Follow the safety data sheet for protection and spills. The current sheet covers gloves, eye protection, ventilation, first aid, spill response and waste disposal for this grade; ask for the version that applies in your country.
7. Confirm the transport classification before you book freight. The classification that applies to your shipment is stated on the safety data sheet and on the transport documents issued with the order, so ask us to confirm before the forwarder is booked.

Documents & Composition Disclosure

This grade is supplied as a chemical intermediate, and that shapes what documentation we can put in your hands. The full formulation of the carrier is not published — it is the manufacturer's know-how — but the documents that matter to a plant are available on request: the current safety data sheet, covering handling, protective equipment, first aid, transport classification and disposal, and the specification and inspection data for the batch you receive.

If your registration, labelling or shipping paperwork needs the CAS number and the molecular formula for this grade, ask our sales contact for the current documents. Those identifiers belong on the safety data sheet and on the batch certificate, and we will quote them from there so the number you file matches the material in the drum.

Compliance works the same way. If a customer or an export market asks for a statement on REACH, RoHS or a restricted-substance list, tell us the market and the exact list, and we will tell you what is actually available for this product. We will not print a compliance claim we cannot back with a document for the batch you bought.

What we will always discuss openly is how the carrier behaves in your plating process — what to watch for at the low current density end, how the bath responds as temperature rises, and what to change if the deposit drifts. That conversation is usually where a bath problem gets solved.

Ordering & Delivery

1. Tell us about the bath. Send the bath type, the working temperature you actually reach, your current brightener package and whether the line is rack, barrel or continuous, and we will confirm the grade fits before anything is booked.
2. Choose the packing format. Across our range we work with 10 kg/box, 25 kg or 50 kg/bag, 20 kg/25 kg/30 kg/200 kg/drum and 1,000 kg/IBC drum; this grade is supplied in 200 kg drums.
3. Confirm the minimum order quantity. It varies by chemical, and your sales contact confirms the figure for your order rather than applying one number across the range.
4. Arrange payment. Terms are 100% T/T in advance.
5. Plan around the lead time. Factory production lead time is 2 weeks.
6. Agree the shipping. Shipping is arranged per the terms agreed in your current contract.
7. Collect the after-delivery documents. Once the goods leave, an inspection certificate is issued stating the batch number and the warranty period.

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.

FAQ