Zinc electroplating chemicals usually arrive as a kit — brightener, carrier, purifier, each with its own dosing point and its own drum. JZ-1 keeps it simpler: a single liquid brightener goes into the make-up, and the optional cyanide antidote is marked on the sheet as not normally necessary. Fewer components means fewer drums on the floor, fewer dosing supports misread, and a bath a shift supervisor can top up from one figure on the analysis sheet.
A zinc plating brightener has two jobs in a cyanide bath. It sets how bright and how level the zinc comes out of the tank, and it keeps throwing power usable on parts with recesses, blind holes and shielded faces. The same additive is specified for the cyanide-free make-up column and for the low-cyanide column, so a shop moving away from cyanide keeps the brightener identical while the rest of the bath changes — operators relearn one variable instead of the whole line.
When a cyanide zinc plating process is running well, the brightener is rarely what people are fighting. Most trouble sits upstream — oil left after degreasing, scale left after pickling, a rinse that has gone stale — or downstream in the passivation. So this product sets out the whole sequence: the make-up, the operating window, the process flow and the bath checks, with the additive judged in the context where it actually works.
| Parameter | Value |
|---|---|
| Product type | Zinc electroplating chemicals — cyanide zinc brightener |
| Make-up columns | Cyanide-free and low-cyanide |
| Zinc oxide | 9–12 g/L in the cyanide-free column; 7–12 g/L in the low-cyanide column |
| Sodium cyanide | none in the cyanide-free column; 1–8 g/L in the low-cyanide column |
| Sodium hydroxide | 100–130 g/L in the cyanide-free column; 100–120 g/L in the low-cyanide column |
| JZ-1 brightener | 4–8 g/L in both columns |
| Cyanide antidote | 4 g/L cyanide-free; 3–5 g/L low-cyanide; optional and not normally necessary |
| Bath analysis | Zinc metal and free cyanide checked by titration |
| Supply form | Liquid concentrate, dosed by volume into the make-up |
| Typical lines | Rack and barrel work in industrial metal plating |
Cyanide zinc plating chemicals only perform as well as the steel going in. Deep-drawn shells, stamped brackets, wire forms and small turned parts arrive with very different loads of drawing lubricant, oxide and shop dirt, so the degrease and pickle steps in the flow are a starting point rather than a fixed recipe. Heavily oiled parts need longer in the alkaline cleaner or a second cleaning stage; parts carrying heat scale need a longer acid dip or a mechanical descale first.
Inside the cyanide zinc plating process the coating is a zinc layer whose brightness and uniformity are set by the brightener, the current density and how clean the surface was on the way in. After plating, parts pass through a dilute nitric neutralisation and a passivation dip. Which passivation you run — white, blue-white or colour — changes both the look and the corrosion result, so tell us which one is on your line when you ask for a recommendation.
In industrial metal plating, corrosion performance is a system result. It depends on zinc thickness, on the passivation and on whether a sealer follows. We do not publish a salt-spray figure for this brightener on its own, because it would not survive contact with a different tank; ask us for the data that matches your thickness, passivation and sealer, and run it on your own parts before you write a specification around it.
| Payment terms | 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; 1,000 kg/IBC drum |
| Shipping | Per the terms agreed in the current contract |
| Inspection certificate | Issued after delivery, stating the batch number and the warranty period |
| Safety data sheet | Ask your sales contact for the sheet covering the grade you order |
| Storage | Sealed, dry and ventilated, away from acids and foodstuffs |
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.
Yes. The make-up is set out in two columns: a cyanide-free column where sodium cyanide is left out entirely, and a low-cyanide column where a small amount is used. Both use the same cyanide zinc plating chemicals for brightness, so a shop can start on one and move to the other as its permits and waste treatment allow. Tell us which column you intend to run and we will send the matching make-up sheet.
The same chemistry runs on both, but not at the same settings — a barrel needs a lower current density and its own rotation, a rack needs cathode movement. Many shops keep one tank and swap the cathode gear, which works as long as the current density is rechecked after the swap. In a cyanide zinc plating process the throwing power is good enough that mixed part families in one barrel usually plate evenly.
Start with the surface, not the bath. Check rinse quality after degreasing and after pickling, then the current density on the actual rack. If the parts are clean and the current is right, have the bath analysed for zinc metal and brightener before adding anything. Dullness that appears only in recesses points at brightener level or temperature; dullness across the whole load usually points at contamination, or at cyanide zinc plating chemicals that have drifted out of balance.
Yes, provided the line can hold the current density steady and dose the brightener evenly. Automatic industrial electroplating lines usually add the brightener on an ampere-hour basis, which suits this bath because the additive is consumed in proportion to the current passed. Check that transfer times between tanks are short enough that parts do not dry out between plating, neutralising and passivation.
Thickness is set by plating time and current density, and it should come from the corrosion target on the drawing rather than from the bath. Decide the salt-spray hours you need, then agree the thickness and the passivation that get you there. In industrial metal plating the passivation and any sealer often do as much for the result as another few microns of zinc.
