Fengfan KLL-8005 Low Temperature Cathodic Acrylic Type Water Borne Electrophoretic Coating

Product Overview

Water-borne acrylic, deposited by current

Fengfan KLL-8005 is a cathodic acrylic electrophoretic coating supplied as a water-borne concentrate. In the container it is a light yellow to brown-red transparent viscous liquid; diluted to working strength it becomes the bath that deposits the film. Coating happens by cathodic electrodeposition, so the film is driven onto the metal by current rather than sprayed or hand-dipped — which is why it reaches recesses, edges and the inside of a frame that a spray gun never covers evenly, and why an industrial metal plating line can put a sealed, decorative topcoat on a whole rack in a single pass.

Where the step sits in the line

The plated or polished workpiece goes into the bath, comes out with a clear, full-bodied film and goes to the oven. Because the film is transparent rather than pigmented, the metal underneath still reads: polished brass stays brass, bright nickel stays bright, and a part that already carries an electroless nickel coating keeps its own colour. What changes is the surface, which comes out sealed, glossier and far less prone to fingerprints and handling marks.

What it is used on, and why the bake matters

Aluminium parts, plated components, small precious-metal fixtures, lighting, hardware and general fittings all take the coating well, because deposition follows the part's own shape instead of a spray path. Whichever metal plating techniques feed the line, the bath is operated the same way — and because the cure sits in a mid-temperature window rather than a high-bake schedule, heat-sensitive assemblies and heavy racks are easier to place in the oven without risking distortion.

Specifications

Film Appearance & Colour Options

• Clear, but with body. The cured film is transparent and full at the same time: it adds depth and a wet-look gloss without clouding the metal, so a polished or plated surface keeps its own colour and reflectivity.
• Even build on awkward shapes. Deposition follows the electrical field rather than a spray pattern, so edges, recesses and internal corners all take a comparable film. On parts that are expensive to spray evenly, that is the difference between a consistent rack and a rework pile.
• Colour that holds. The film resists fading and keeps tinted or dyed work bright through handling, packing and cleaning — the property most metal plating services are actually buying when they specify a clear topcoat on decorative work.
• Clear or tinted, from the same product. The coating runs clear as standard and can be coloured with Fengfan's water and oil colour slurry systems, matched into the bath to reach the shade you specify. Plating services running several decorative shades normally confirm the shade, or a physical sample, before the bath is made up.
• A sealed surface, not just a shine. Once cured, the film keeps moisture and handling soils off the metal, which is why industrial metal plating shops so often specify it as a topcoat over electroless nickel plating and other decorative deposits.
• Smooth to handle. The film is slick and abrasion resistant, so parts that are racked, packed and handled repeatedly keep their finish instead of picking up scuffs along the way.

Bath & Cure Control

1. Build the working bath to the solid content in the specification table. Measure solids on a sample rather than estimating from the volume of concentrate added; drag-out and evaporation move that number more than the make-up does.
2. Start from water that meets your line's purity standard. Ionic load in the make-up water shows up quickly as conductivity drift, so cleaner water means a longer stretch inside the working window.
3. Hold the fluid temperature in range. A bath running cold deposits slowly and throws poorly into recesses; one running hot loses solvent faster than top-up can replace it.
4. Log pH and conductivity at 25 °C once a shift. Both move as drag-in from the industrial metal plating operation upstream accumulates. A trend line tells you what a single reading cannot: whether the bath is drifting, or simply sitting at the edge of its window.
5. Watch solvent content when the film changes. Orange-peel, hazing, or a film that still feels soft after cure usually points at the solvent fraction; check it by chromatography against the working range before adjusting anything else.
6. Keep the bath circulating and filtered. As with most metal plating techniques, stability comes from movement: continuous circulation holds solids in suspension and filtration takes out the particles that turn into roughness. Confirm the ultrafiltration arrangement for your tank with our technical contact.
7. Rinse drag-out before the oven. Rinse the wet part the way your line already handles electrophoretic coatings. On a part that carries an electroless nickel coating, rinse quality before the oven often decides whether the film dries clear or slightly hazy.
8. Verify the bake on a loaded part. The schedule in the specification table is a target at the part surface, not a number on the oven display; heavy sections and densely packed racks need longer to reach it. Let parts cool before stacking or packing.

Applications

• Aluminium parts and trim. Frames, housings and decorative aluminium components coat evenly because the film follows the part's own geometry rather than a spray path.
• Plated components. Bright nickel, chrome and zinc nickel plating all take the clear film well; it seals the deposit and adds the depth a bare plating finish does not have.
• Topcoat over electroless nickel plating. Where a functional nickel layer needs a sealed, glossy surface for handling and appearance, the e-coat runs as the final wet stage.
• Precious-metal fixtures and small hardware. High-value parts that are slow to lacquer by hand can be racked and coated in one pass — one reason plating services with mixed hardware orders like the process.
• Lighting and clocks. Lamp bodies, fittings, clock cases and bezels, where a deep even gloss is the visible selling point.
• Eyewear, locks and furniture hardware. Spectacle frames, lock bodies, handles and hinges that have to survive daily contact without dulling.
• Small turned and stamped fittings. Screws, bushes and brackets that come off a zinc nickel plating line and need a clear protective topcoat before assembly.
• Automotive, aerospace and machinery parts. The mid-temperature cure lets heat-sensitive components and assemblies be coated without the distortion risk of a high bake, and the cured film resists abrasion in service. For metal plating services supplying these sectors, it is the step that turns a functional finish into a presentable one.

Ordering & Delivery

1. Send the bath details with your enquiry. Working volume, substrate (aluminium, steel, or a part that already carries a zinc nickel plating layer), film target and, if the coating is to be tinted, the shade — these are the details plating services usually have on hand and the information the sales team needs to confirm the grade and the packing that fits your tank.
2. Confirm the minimum order quantity. It varies by chemical and is confirmed with our sales team per order, so the figure on your quotation is the one that applies.
3. Payment. 100% T/T in advance.
4. Lead time. Two weeks for production.
5. Packing. 10 kg/box; 25 kg or 50 kg/bag; 20 kg/25 kg/30 kg/200 kg/drum; 1000 kg/IBC drum, chosen to match the quantity you order.
6. Shipping. Per the terms agreed in the current contract.
7. Documents after delivery. An inspection certificate is issued after delivery stating the batch number and warranty period; keep it with the lot so any later question can be traced back to the drum.
8. Storage at your site. Keep drums closed and under cover, and ask the sales contact for the storage and handling notes that apply to the lot you receive.

Related Process Chemicals

Bath Changeover Checklist

1. Agree the acceptance standard before anything is mixed. Keep a set of parts finished with the coating you run today — same substrate, same colour, same gloss — and use them as the reference throughout the switch. Write down what the trial has to match: film appearance, adhesion result, colour and the handling the parts will see afterwards. A trial judged by eye on the day is not a decision.
2. Check that the tank suits cathodic deposition. In a cathodic system the parts sit on the negative side of the rectifier, so confirm polarity, anode arrangement and the circulation and filtration setup before the tank is drained. If the line previously ran a different coating chemistry, the electrical arrangement and the tank lining are the parts most often overlooked — talk the layout through with our technical contact first.
3. Make up a pilot bath and verify the working numbers, not the concentrate numbers. Dilute to 10–12% solids and confirm pH 4.5–5.5 at 25 °C, conductivity 600 ± 300 µS/cm and a fluid temperature of 24–28 °C before a single part goes in. Test solids by the same method stated in the specification table so your result and ours are comparable.
4. Look at what the parts bring in with them. Drag-in from the metal plating process upstream — plating bath carry-over, rinse water, handling soils — moves pH and conductivity in the first few racks. Rinse thoroughly before the bath, then re-read the bath after the pilot run and note how far it moved; that drift, not the fresh-bath reading, is what you will live with in production.
5. Run one rack carrying every part family you coat. Aluminium, plated brass and steel, zinc-based die castings, and the thin-wall or assembled pieces that are hardest to cure. Complex geometries and internal corners show whether coverage is genuinely even, and a heat-sensitive assembly shows what the bake does to it.
6. Judge the film after cure and again the next day. Check gloss, haze and colour straight out of the oven, then repeat the adhesion test once the parts have cooled and settled overnight. Use the cross-hatch and tape method your own customer specifies, and keep the tested pieces — a film that passes on the day and fails in packing is exactly what the overnight check catches.
7. Check the oven against the coating, not the other way round. The schedule is 140–150 °C held for 30 minutes at the part surface. Confirm the oven reaches it on a fully loaded rack, and work out what that hold time does to your throughput and rack density before you commit the whole tank; if the plated parts also carry an electroless nickel plating layer, confirm the cure does not affect that deposit's own properties.
8. Settle the colour route and the record-keeping in the same trial. Tinted work needs a shade matched on your own substrate and approved as a physical sample, because the same slurry reads differently over bright nickel and over aluminium. When the switch is approved, keep the inspection certificate and a coated sample from the first production drum so any later question traces back to a batch number. Metal plating services that document the changeover this way spend far less time arguing about whose bath caused a defect.

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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