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Selecting the Best Flux for Soldering Station: Experience with Slovakian Inky Flux

motka92 21858 20
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  • #1 16278758
    motka92
    Level 8  
    Gentlemen ...

    2 weeks ago, I was in Slovakia with a few days visit at one of the local technical universities ...

    I was doing the task, and the Slovak gave me a flux instead of rosin or solder paste ... and I must say that I was doing very well on it. :)

    Unfortunately, I do not know the brand or the series ... it was watery, inky color.
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  • #2 16278931
    elektryku5
    Level 39  
    Better still, a gel flux, e.g. TSF6502.
  • #3 16280148
    max-bit
    Level 33  
    One of the best Jelly Flux Warton, unfortunately, the downside is the price.
  • #4 16294119
    tzok
    Moderator of Cars
    ... I prefer RMA7 ALPHA there, old, expensive but super effective, not only for BGA / HA. The cheaper but not so effective is the liquid RF800. On the other hand, when soldering new elements, it is enough to have a good solder wire with flux and a properly selected soldering temperature. If you want to save, rosin dissolved in IPA or denatured alcohol (you can use acetone as a last resort) also works.
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  • #5 16294195
    Rzuuf
    Level 43  
    I recommend a cheap but effective flux: urea (granulated fertilizer, a few zlotys per kilo in the garden shop ...).
    Urea is great for soldering: copper alloys, stainless steel, nickel and resistance wires, and with difficulty AL.
    Kanthal, Znal and chrome surfaces are not soldered.
  • #6 16294351
    tzok
    Moderator of Cars
    Only urea is very aggressive and destroys the tips. Nevertheless, it is well suited for "heavy" soldering.
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  • #7 16294823
    max-bit
    Level 33  
    Yes, and the eaten paths ...
  • #8 16309190
    Anonymous
    Level 1  
  • #9 16309605
    Rzuuf
    Level 43  
    Urea ...
    max-bit wrote:
    Yes, and the eaten paths ...
    it does not eat the tracks, but it is good to rinse off the remains of the flux with WATER after soldering.
    There are more "ambitious" fluxes, for example aniline hydrochloride (very harmful), and even acetylsalicylic acid (Polopyrin), which allows soldering thin winding wires without removing the enamel (dissolving it).
  • #10 16330101
    makaronmc
    Level 30  
    Hello

    Tomorrow in KAMAMI there is a day of free delivery, I want to buy my first flux (but I don't know which one to choose). Soldering with a transformer soldering iron and a soldering station (I do not solder BGA), usually ordinary through-hole components.

    Personally, I once tried a pouring flux, applied with a needle, navy blue in color, unfortunately I do not know the type of flux, but it was good for me ...

    RF 800 flux 100ml AG
    https://kamami.pl/kalafonie-topniki-pasty-lut...-100ml-ag.html?search_query=topnik&results=42

    What needle to choose for it? 0.25mm, 0.33mm, 0.51mm, 0.9mm? Straight or curved?
  • #11 16330170
    tzok
    Moderator of Cars
    The RF 800 is not suitable for such applications. It is a liquid (and not very effective) no-clean flux for SMD. He has already been mentioned here. Buy the last gel flux for PLN 18.90.
  • #13 16330303
    tzok
    Moderator of Cars
    You can, but you can do without. It is dense, so 0.9mm, and straight or bent is a matter of taste.
  • #14 16330350
    elektryku5
    Level 39  
    I also recommend buying a conical plastic needle, the thick flux comes out relatively well.
  • #15 16330416
    makaronmc
    Level 30  
    elektryku5 wrote:
    I also recommend buying a conical plastic needle, the thick flux comes out relatively well.


    I think there are no conical needles in KAMAMI: /
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  • #16 16350136
    makaronmc
    Level 30  
    Today my flux came from kamami.pl ...

    But I don't know how to use it .. because the set does not include the syringe plunger: /
    Do I need to buy something?

    Selecting the Best Flux for Soldering Station: Experience with Slovakian Inky Flux Selecting the Best Flux for Soldering Station: Experience with Slovakian Inky Flux
  • #17 16350152
    elektryku5
    Level 39  
    It should go from a 10ml syringe, for some fluxes they give a pusher, but it is different.
  • #18 16350158
    makaronmc
    Level 30  
    I wonder why there isn't?

    I have to have something to push it out ..: /
  • #20 16374350
    max-bit
    Level 33  
    never has a plunger :) more precisely the follower :)
    Basically they are intended for automatic stations in which this is the pusher.
    Added after 2 [minutes]:
    and then something thinking doesn't work :)
    It's best to buy a 2ml syringe, a needle> 1.2 (1.6) thick, even a thick needle (for biopsy)
    Trim the cut and we have a beautiful kit
    You can also use small 1ml injection syringes for general cargo.
  • #21 16376089
    tomiok
    Level 33  
    Bieda z nędzą wrote:
    I am using the RF800. Good, it only gives a lot of eyesight. The extraction must be there.

    I think it's a joke.
    RF800 - Never in life, for nothing.

Topic summary

The discussion revolves around selecting the best flux for soldering, particularly focusing on a Slovakian inky flux that a user found effective. Various types of flux are recommended, including gel fluxes like TSF6502 and Warton, as well as RMA7 ALPHA, which is noted for its effectiveness despite being expensive. RF800 is mentioned as a liquid no-clean flux suitable for SMD but not ideal for through-hole components. Urea is suggested as a cheap alternative, although it is aggressive and can damage soldering tips. The conversation also touches on the use of syringes and needles for applying flux, with recommendations for needle sizes and types. Users share their experiences with different fluxes and provide advice on purchasing and using them effectively.
Summary generated by the language model.
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