Fengfan 898B is a phosphorus-free alkaline powder for cleaning aluminum and aluminum alloys before anodizing, conversion coating or plating. In most industrial metal plating services that handle aluminum, it is the first wet step, and the one that decides whether everything after it holds: oil left on the surface anodizes unevenly, coats badly and fails adhesion, however well the rest of the line is run.
It is not a general-purpose alkaline cleaner with the concentration turned down. Aluminum is reactive, and a cleaner strong enough to cut heavy stamping oil will usually dull, etch or blacken it, which is why so many shops still run phosphate soak cleaners and live with the trade-off. This product takes the other route: a mild alkaline base, a surfactant blend that lifts soil quickly, and an inhibitor package that keeps the oxide film intact while the cleaning happens. It works at room temperature, so the tank does not have to be brought up to heat before the first load.
That combination is what makes it usable across a mixed workload. Polished bezels, machined housings, extrusions, heat sinks, castings and high-strength fittings can all go through the same bath, and parts reach metal electroplating, anodizing or coating bright and dimensionally unchanged rather than needing a repair polish first.
| Property | Value |
|---|---|
| Product type | Alkaline degreasing powder for aluminum and aluminum alloys |
| Model | 898B |
| Brand | Fengfan |
| Appearance | White powder |
| Substrate | Aluminum and aluminum alloy parts; also used for mechanical parts cleaning and degreasing |
| Working concentration | 50–80 g/L |
| Bath temperature | 20–50 °C |
| Contact time | 5–20 minutes |
| Bath pH | 10–12 |
| Form | Solid powder |
Immersion and soak cleaning. The workhorse format: parts on racks or in baskets, the bath moved by air, by a pump or by shifting the load. It takes almost any geometry and the largest parts, and it is the easiest format to control because nothing stands between the bath and the surface.
Ultrasonic cleaning. Use it when the soil sits where a brush cannot reach: blind holes, fine threads, stacked stampings, porous die-castings with deep pockets. Cavitation lifts soil out of recesses that a soak alone will only soften, and the cycle usually shortens with it.
Spray cleaning. For flat and large-area work such as extrusions, sheet and panels, where a conveyor carries the part through a washer and mechanical impingement does part of the job. It is the natural choice for a line that already runs a tunnel washer.
Choosing between them. Geometry decides. If the soil is trapped somewhere you cannot see, ultrasonics; if the part is flat and moving on a line, spray; everything else, immersion with movement on the rack. Whichever route you take, the surface has to be uniform before an aluminum anodizing process, a conversion coating or a plating step begins, and a properly cleaned part looks the same in all three.
One product, three formats. Because the same powder serves all three, a shop that uses several electroplating chemicals does not have to keep a separate cleaner for each washer, and a part can move between formats without a change of chemistry.
EV and power-electronics heat sinks. Stamping oils cling to fin geometry, and the fins are too thin to survive a strong alkali. The surfactants penetrate the gaps and emulsify the oil without eating into the aluminum walls, so the surface is ready for fluxing, brazing or plating. It is one of the reasons the product turns up on metal electroplating lines that run a mix of formed and machined work.
Consumer electronics chassis before anodizing. A mirror-polished laptop or phone housing cannot show a trace of hazing or pitting, and the soils here are light: fingerprints, polish residue, handling oils. A gentle inhibited cleaner lifts them and leaves the finish untouched, so parts reach the aluminum anodizing process with an unblemished surface and yield stays high where a re-polish is not an option.
Contract shops working through a mixed order book. A supervisor taking in cast housings on Monday and extruded brackets on Wednesday does not want to change chemistry between batches. One bath covers porous die-castings, wrought alloys and high-strength grades, which keeps the schedule simple in an industrial metal plating shop and cuts the number of products on the shelf.
Automotive radiators and heat exchangers. Complex internal passages, brazing residues and thin walls make this a part where aggressive cleaning shows up as leaks later. Immersion or spray with an inhibited bath cleans the passages without thinning the material.
Aerospace and high-strength fittings. Where a part carries structural load, surface integrity matters as much as cleanliness. The bath removes shop soil and handling oils without starting the pitting that a harsh alkaline cleaner can leave behind.
| Item | Detail |
|---|---|
| Minimum order quantity | Varies by chemical; confirmed with our sales team for each order |
| Payment | 100% T/T in advance |
| Lead time | 2 weeks |
| Packing | 10 kg/box; 25 kg or 50 kg/bag; 20 kg, 25 kg, 30 kg or 200 kg/drum; 1,000 kg/IBC drum |
| Shipping | Per the terms agreed in the current contract |
| Documentation | Inspection certificate issued after delivery, stating the batch number and the warranty period |
| Trial lots | Availability and terms confirmed with your sales contact |
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 inhibitor package is what makes that possible: it protects the oxide film on both wrought and cast aluminum, including the 6000 and 7000 series that come up most often in industrial metal plating, so the part is cleaned without being etched or blackened. On an unfamiliar die-casting, run a trial part first, because die-cast alloys vary in how they respond to any alkaline bath.
Phosphorus is a nutrient. Once it reaches a river or a treatment works it feeds algae growth, which is why many regions cap it in discharge. A cleaner without it keeps that load out of your wastewater, takes the phosphate precipitation step and its sludge out of the treatment train, and saves the cost that goes with both, which is why shops providing metal plating services have been moving away from phosphate cleaners.
Mineral oils, stamping and drawing lubricants, polishing compounds, vegetable-based cutting fluids, fingerprints and general shop soil. These are the soils that cause spotting and patchy adhesion once the part moves on to the plating chemicals, and they are exactly what the surfactant blend is built to emulsify.
Anywhere from 20 °C to 50 °C. Most lines start at ambient and let the bath find its own level, and running toward the top of the range shortens the cycle when the soil is heavy. The window is deliberately wide, because a metal plating process rarely holds a bath at one exact temperature and the cleaner should not be the thing that limits you.
No. Standard mild steel or stainless steel tanks are suitable, because this is a mildly alkaline solution rather than an aggressive one, so no special lining, coating or packaged tank is needed. Most metal electroplating shops can put it into a tank they already have, with the normal ventilation an alkaline bath calls for.
