very useful, thx mate

Do you have any idea about how long the spool of kaina solder(100g) is?

Finally a confirmation of what I experienced. Because leaded solder is hard to get in the EU since around two years, I ordered some cheap 60/40 from ebay and got exactly both that Jinhu and Kaisi rubbish that is impossible to work with. I since then try to use aliexpress instead if possible. Not only because there are reviews and photos, but also because I never received a fake product from there yet.

60/40 solder is only needed in electronics if you're wave or reflow soldering and have heavy components already on the board that you don't want to de-solder. It passes thru a plastic phase while cooling, unlike 63/37, and can be subject to mechanical failure if it is disturbed in this state. I use it for stained glass, not for electronics. Also, solder will fail if you apply a flux that is incompatible with the flux in the solder. Never mix flux types. Solder that is acceptable for electronics will be marked J-STD-006 and/or -001. Flux will be marked J-STD-004 and must be rosin, resin, or organic acid with an activity level of L0 or L1. Any other flux must be completely removed after soldering and shouldn't be used at all on some components, like stranded wire.

Pretty good this brand ..its called (High Quality Solder /Mode A B C/Red label .. I buy it from Temu..Least it flows good an gives very good shine to the joints. I've tried 5 different Chinese brand soldiers that were much like the brands above - without no question the a.b.c brand this one was the best i tried thus far from China.. if anyone needs the \Temu link i can post it.. is a great comparison video Karl...thanks so much!

There's so many grades of Kaina but this blue stuff is my favourite solder also.

if you think Kaisi is bad try Frizno the motto on the roll is "behold the power of diamonds" Only thing Diamond about it is just like Diamond it does not like to melt, It just turns slushy

Just received a roll of Kaina, it seems to work very well, thanks! Too bad the only legit version on ebay is the small 0.5mm spool.

thankyou i thought i was going mad my soldiering looks so bad cannot clear bridges solder looks like cement . changed soldiering iron, flux , so i put kaishit in and found your video

Do they sell fake / counterfeit Kaina blue? I noticed on my roll that "Kaina" brand name is actually molded into the white plastic of the spool's bottom, and there was a disposable color Kaina label wrapping the solder, too. Hopefully that means it's authentic.

i had decent results with the jinhu 0.5 2% flux the other day, better than the koocu crap i ordered too.

Thank you friend 👍

Mechanics Solder wire (aliexpress) is good one as well. but Kaina is tempting after watching your video. Thanks

@Boz1211111

4 жыл бұрын

So many kaina models wonder what they all mean

As a Chinese, I must admit that the quality of our products is not good. I am a practitioner in the electronics industry and the Jinhu brand is completely rubbish. The garbage that we locals don't use. But it is cheap and so people still buy it.

@karlsprojects4639

5 жыл бұрын

Yup, the Jinhu stuff i once used when i ran out of the good stuff - it was hard to solder at 400C even...

@user-xw6xm3ic3d

5 жыл бұрын

Karl's Projects Jinhu solder wire is exported to the market at a low price, achieving small profits but quick turnover. It is the so-called one-point price. I use alpha solder wire daily. Jinhu is a garbage

@turanamo

2 жыл бұрын

"I must admit that the quality of our products is not good" Well, you guys make good quality stuff too. If you want good quality you have to pay a good price. Cheap stuff sells since cheap people buy them. So can't blame those who make it.

@superpooper_2030

2 жыл бұрын

I think you’re not professional. In China, I know few brands are good like White Monkey, strong, youbang, Kaina, mechanic, WTI ETC. for normal maintenance, choose 60/40, 63/37 or 63a {55/45}

I have jinhu. I use it in unimportant projects.

I have used KOOCU 63/37 0.6mm (0.15in) solder and I don't like it at all It's really foggy and breaks easily So how would that compare to those?

@dutchdykefinger

5 жыл бұрын

agree, i ordered soome KOOCU aswell as jinhu, the koocu was horrible, very brittle indeed. i personally liked the jinhu way better (particularly the one that says 5mm 63/37 2% flux, model A), i can actually reflow the jinhu stuff if i mess up without it falling apart lol.

@superpooper_2030

Жыл бұрын

It’s fake spec and probably real spec only 20|80

ALPHA TELECORE 63/37 solder is pretty good！

Hello did u ever make the 6s charger im locking to make a 16s15p charcher let me know if you hace done it to see how you did it

@karlsprojects4639

6 жыл бұрын

Yes, the 6s charger works amazing with the setup i already made a video about. I will try to make a new one as soon as possible. But at the moment im really busy with life - i will try my best though!

@xxxratixxx

6 жыл бұрын

cool if u make a new one pleas let me know ty

i have wondering what was up with the chines solder most is jonk been using the solder past the other not shiny and hard to get it to stick my American 60\40 good every time but they wont too much for it like every thing in America they wont a 1000 percent profit!

can you please tell tell me good flux name to remove soldering bridge

@harisyoung4110

4 жыл бұрын

kester

I tried few versions of Mechanic solders, sx862, hx-100, also 63/37 and 42/58 bismuth pastes. Each solder is very good. Other then the fact that I dont like bismuth, because I often solder leds and they tend to melt bismuth ;D Also, none of those Mechanic pastes grows fungus as easily as other solder pastes (whoever uses lot of paste, knows what I'm talking about). It looks like they are using some anti-fungal additives ;D Anyway, really good quality metal.

@MPETE1976

2 жыл бұрын

I only use Mechanic 63/37 these days. Paste and Wires ranging from 0.3 - 1.0mm. I have only had positive experiences with Mechanic so I see no point in try any other brands anymore. There is alot of junk out there. Some ok also, but when Mechanic is available in so many variant I see no reason to use any other.

@superpooper_2030

2 жыл бұрын

I only use bismuth for desoldering because it’s low melt temperature

2:44 is it a lead free solder?

@ThereWasNoFreeName

3 жыл бұрын

This is a fucking lead from recycled car battery. Never buy chinese shit from E-bay or Ali. The only products (and only IF they are genuine) are Kaina and Mechanic, but those can be quite expensive and not worth ordering online.

How much are you paying per pound?

At least your soldering paste melts, the one i got from China doesnt even melt...

Bought Jinhu and throwed away, I couldn't manage to make a single shine solder with it.

@karlsprojects4639

5 жыл бұрын

Yup, its a really bad experience... i still use kaina for everything

Well, I dont see the point in buying solder wire from China, you only saving a coupe of euros. Here in Europe you can get a 500g roll of Multicore 511 for 22 euros from Farnell. Other equally good brands like Felder, Cynel... etc for even less in Reichelt or TME, around 18euros per 500g . That is almost the same price per gram as the Kaina solder, but at least with the brand names I know exactly the type of flux used, and the date of manufacture etc.... Solder paste is another matter though.

People say: almost everything is made in China. Off course, that's no secret. But what is the quality and what does it consist of. That's the question.

I always figured "solder was solder" but I bought a 3 pack of Jinhu 63/37 in different sizes and boy is it junk! The stuff oxidizes immediately upon melting and then wont wick or flow at all into wires or onto traces. It so terrible I don't see how the company isn't being sued for fraud as their product is physically incapable of soldering anything.

Low temp mean it contain more lead. Of cource too much lead caused shiny loss.

@fly-high-me

5 жыл бұрын

Nope. Totally incorrect more Sn less temperature more Pb high temperature.

I have kaisi, it's so fucking bad. Impossible to use, waste of money.