Description complète
KEK 559 flux: solder takes hold on the first try
A rework joint that beads up, a pad you heat for too long, a connector that refuses to let go: nine times out of ten, flux is missing. This rosin paste removes the oxide the moment the heat arrives, so the solder wets the copper instead of rolling over it. It's the basic consumable for recapping, fitting an IPS screen and any charging port rework on a console board.
What it does
- Immediate wetting: the solder spreads and shines instead of forming dull balls, and cold joints disappear.
- Desoldering with braid: a dab of flux on a row of pins and the braid soaks up the solder without lifting the pad.
- Tacky paste, not liquid: it stays where you put it, even under the airflow of a hot air station.
- Two sizes: 10 ml for a one-off repair, 30 ml for working through board after board.
What it doesn't do
- This is not solder paste. Despite the manufacturer's label, this product contains no solder: you need solder wire or solder balls alongside it.
- You need to clean up afterwards — isopropyl alcohol and a brush. Rosin residue is sticky and holds dust.
- It won't make up for an underpowered iron or an oxidised tip: flux is no substitute for the right temperature.
- It won't fix a lifted pad or a cut trace — for that, you need a jumper wire.
Compatibility
Universal: home console and handheld console motherboards, power supplies, connectors, charging ports, SMD and through-hole components. Works with both leaded and lead-free solder, with an iron or a hot air station. It isn't a console-specific product, so no revision is excluded.
Skill level required
This is a workshop consumable: it assumes you already have a soldering iron and solder wire. No cutting, no special disassembly. Keep something on hand to clean off the residue (isopropyl alcohol, anti-static brush) and work in a ventilated room — rosin smokes when heated.
In the box
- 1 tube of KEK 559 soldering flux — 10 ml or 30 ml depending on the variant chosen
Delivery in 10 to 18 days · ships within 3 to 5 days · 2-year legal guarantee · 14-day returns.
KEK 559 rosin soldering flux — 10 or 30 ml tube
Rosin flux for clean soldering and desoldering on console boards — 10 or 30 ml tube.
En stock
📦Ships within 3 to 5 business days · Delivery in 10 to 18 business days · 2-year legal guarantee · 14-day returns.
ℹÀ partir de 150 €, la livraison s’effectue en Point Relais.
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Why your solder joints bead up
On a console board that's twenty or thirty years old, the copper is oxidised and so is the original solder. You apply heat, the solder melts, but it stays in a ball and refuses to spread: that's oxide, not a fault with your iron. Flux dissolves this layer during the few seconds the tip is in contact. The drop suddenly flattens and the joint turns shiny. It's the difference between a repair that holds for ten years and a cold joint that will give way at the first knock.
A tacky flux, not a liquid flux
The 559 comes as a paste, not a liquid: you apply it with a toothpick or a spatula and it stays where you put it. That's what makes it usable with a hot air station, where a liquid flux would be blown away before the component even moves. The rosin it contains is mild and doesn't attack the board's solder mask. The 10 ml tube is more than enough for one repair; the 30 ml tube is for those who do one recap after another.
What you need alongside it
Flux isn't enough on its own: you'll need solder wire, desoldering braid and something to clean up with afterwards. Rosin residue isn't corrosive, but it's sticky and picks up dust — a wipe of isopropyl alcohol with an anti-static brush once the board has cooled, and you're done. Work in a ventilated room, as rosin smokes when heated. Listing verified on 19 August 2026; if you're unsure about the size or the use, our French customer service replies within 1 business day.
What this accessory brings
Verified manufacturer specifications · vérifié le
Ce qu’il fait bien
- Rosin: the solder wets the pad instead of beading up
- Tacky paste that stays in place, even under hot air
- Makes braid desoldering easier on rows of pins
- Compatible with leaded and lead-free solder
- Two sizes: 10 ml for occasional use, 30 ml for back-to-back jobs
Ce qu’il ne fait pas
- Contains no solder: this is not solder paste
- Sticky residue to clean off with isopropyl alcohol
- Won't make up for an underpowered iron or an oxidised tip
- Won't fix a lifted pad or a cut trace
Voir toute la fiche technique+
Matière et format
- Type d’accessoire
- Soldering consumable
Compatible avec
- Retro console motherboards
- Connectors and charging ports
- IPS screens and ribbon cables
- SMD and through-hole components
- Soldering iron and hot air station
- Leaded and lead-free solder
Dans la boîte
- 1 tube of KEK 559 soldering flux — 10 ml or 30 ml depending on the variant
Frequently Asked Questions
🔧 What exactly does this flux do?
It removes the oxide layer on the copper and on the solder as they heat up. The result: the solder wets the pad and spreads instead of beading up. That's what separates a shiny joint from a cold joint.
🧪 Is this solder paste with solder in it?
No. The original label is misleading: this is a rosin flux with no solder. It's used with solder wire or solder balls, not instead of them.
🎮 Which consoles and components is it compatible with?
All of them. It's a universal consumable: home console and handheld console motherboards, connectors, charging ports, IPS screens, SMD and through-hole components. It works with both leaded and lead-free solder.
🧼 Do you need to clean up after use?
Yes. Rosin residue is sticky and holds dust. A wipe with isopropyl alcohol and an anti-static brush is enough, once the board has cooled down.
📦 What's in the box?
One tube of KEK 559 flux, 10 ml or 30 ml depending on the variant chosen. Nothing else: no solder wire, no braid, no dispensing needle.
🧰 Which size should you choose?
10 ml for a one-off repair — a charging port, a screen, a controller. 30 ml if you work through board after board or do recapping in batches.
🚚 What are the delivery times?
Delivery in 10 to 18 days, ships within 3 to 5 days.
🛡️ Which guarantee applies?
2-year legal guarantee of conformity. 14-day returns. French customer service, reply within 1 business day.
Why buy here rather than on a marketplace
It is a fair question. Here is the answer, straight.
Every listing is checked before publication: real compatibility, material, dimensions, box contents. Many models never make it into the catalogue.
A question about compatibility, a fit problem, a return: you write, a human replies within 1 business day. In French.
The 2-year legal warranty of conformity is handled by us — not by a form on the other side of the world. And 14 days to change your mind, with no need to justify yourself.
We do not claim to be the cheapest. We claim that you will know exactly what you are buying before you pay.
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