SDG

Рет қаралды 523,990

5 жыл бұрын

$2 for PCB Prototype(Any Color): jlcpcb.com/
1. Yellow Solder Paste: bit.ly/2Yhd9rg
2. Mechanic MCN-UV80: bit.ly/2XyaqwM
3. Pro'sKit 8S005: bit.ly/2J7FDO2
4. Weller F-SW21: bit.ly/2Yg0k0B
5. AG Termopasty TK83: bit.ly/2ZOnOdr
6. AG Termopasty LP-1: bit.ly/2J7H6UD
7. CIF F42202 Gel Flux: bit.ly/2Yk47de
8. MG Chemicals No Clean Gel: amzn.to/2IQ1j25
9. Best BST-223-UV80: bit.ly/2X4gbhe
10. Relife RL-421-OR: bit.ly/2XC6sDd
11. Relife RL-422-IM: bit.ly/2IRsU33
12. Topnik Zel Flux: bit.ly/2X8bUcV
13. KSS S800 Flux: bit.ly/2JdHlgT
14. Amtech NC-559-V2-TF: bit.ly/2XbakvI
15. Fake Amtech NC-559-ASM: bit.ly/2KGhL7u
16. Kester No Clean: bit.ly/2KDRA15
Equipment:
T12 Soldering Station: www.banggood.com/custlink/3KK...
AC Version: www.banggood.com/custlink/3GK...
T12 Iron Tips: www.banggood.com/custlink/3DG...
Daniu Tip Cleaner: bit.ly/31VHwWM
KSGER T12-BCM3 Tip: bit.ly/2xgYXCQ
Amscope Microscope Head (US): amzn.to/2YmZWNx
Amscope Trinocular Microscope (US): amzn.to/2YdBE8k
Amscope Trinocular Microscope (UK): amzn.to/2V8w9Gh
Swift SS41-WF20 Binocular Microscope US: amzn.to/2VLWEpb
Swift SS41-WF20 Binocular Microscope UK: amzn.to/2GYGYFV
Support the channel: / sdgelectronics
Visit my website: www.sdgelectronics.co.uk/ #ElectronicsCreators

Пікірлер: 700

@jamesdavies686 3 жыл бұрын

I realize it's only been a little over a year, but you should do this same video again as a revisit with some same and some new brands. Since bait and switch happens so often in the parts world, would be interesting to see if the cheap stuff still holds up today.

@cerglabs3646 2 жыл бұрын

Excellent suggestion.

@fmburner 2 жыл бұрын

Should throw kingbo in the mix

@FranckBossi Жыл бұрын

2 years now

@3nertia Жыл бұрын

I would like to second this ...

@hoggif 4 жыл бұрын

Banggood yellow tub melts at (or below) 100C. I melted it and poured in syringes. Quite cheap and seems to work well. You get quite a few syringes out of a tub of that!

@trevorwhite9138 5 жыл бұрын

Thanks, this was a really useful video. Having all the links really helped me find the best product and the easiest for me to order.

@TheGuitologist 4 жыл бұрын

Excellent comparison. Very helpful.

@allallall2321 3 жыл бұрын

HUITA

@What_I_Make 5 жыл бұрын

Your analogy on the fluid is spot on. As a part of the soldering I carried out at work, we looked at this and using the microscope could see the heat from the soldering iron directly burning off or evaporating the adjacent flux. I do have a concern with the thin consistency. Originally and at home, I use a thick paste and found, and in both cases, they last a very long time. With the thinner paste, it is tough to administer by hand, and because the density is lower gets used up very quickly. This may be my method, but there was a definite consumption at work between the two.

@KimoKimochii Жыл бұрын

by the flux lasting long does it become so thick it’s unusable? i find after a few minutes the flux gets so dried and thick on the board i need it clean it off and reapply

@fishyrider3528 5 жыл бұрын

Point to point old radio oxidized joints. Need the test. Great job. Good to have you back. Hello from Romania.

@ericeschborn1315 2 жыл бұрын

thanks for sharing! As a hobbyist who only really has warmed my tip to soldering, it's refreshing to have such insightful videos

@rangwankasantikul9223 4 жыл бұрын

I guess it might be a great idea to rerun the tests on a non-plated copper boards. That's a better way to test the flux's ability to deal with oxides.

@GeekDetour 3 жыл бұрын

Excellent video! I am new to SMD soldering... so, I got a couple of soldering paste and flux - but they didn't perform as nicely as the best ones you've shown, BY FAR! I thought it was just my inexperience, my lack of technique, but your video showed quite some difference between them, I am purchasing the ones you recommended and then I can be sure what is my fault :) Thanks!

@585585MC Жыл бұрын

for me this is a wonderful channel. great tests, great video quality, great audio, great voice and speaking ability.

@larsgregersen 5 жыл бұрын

Thank you for this demonstration. Especially for showing the effect (or lack thereof) of not using flux at all!

@sdgelectronics 5 жыл бұрын

SOIC is about the limit for using no flux, but I have a video coming shortly for SMD IC soldering 👍

@MikeyMack303 Жыл бұрын

In my experience, over many years, the amber flux paste is a great go to for best performance, no matter what label. Thank you for sharing that with us.

@electronicsoverhaul 5 жыл бұрын

Chip Quik SMD291 is great for soldering on ICs. It has a low viscosity, a greasy consistency. SMD4300TF10 is good for whatever else. Amtech does leave a sticky residue I don't like. When you heat the flux, it’s very transparent making it easy to see what you're doing. These are good for phones and small SMD work. I think rosin-based flux is fine for just about everything but can be harder to see for the small stuff with it's yellow coloring or becoming browner with heat. Rosin doesn't evaporate and smoke as quickly as Amtech. You can heat rosin to 500C, and it won't evaporate. It can turn darker as it heats up with use as you slide the solder iron around it more. Use what you like for whatever applications.

@ristomatti 5 жыл бұрын

I'm just starting with SMD soldering (or planning to do so for long) and this was extremely useful information. The brand/price overlays over the different options and again on the results was brilliant. So easy to compare. Talking pace and speech clarity also spot on. Great work, thank you! Two things I would have liked to hear (or missed): 1) what type of solder was used, 2) is the shelf life of the flux jars longer than on the ones that come in a tube? With the little time I have, it might be weeks or a month between I solder anything requiring flux. It's quite frustrating as the manufacturers state the shelf life to be only months. I've seen tips of reactivating old flux with IPA (maybe it was also on your channel?) but I've yet to try it.

@paulgrodkowski3412 2 жыл бұрын

Yes, Italian's are goog engieers!

@ristomatti 2 жыл бұрын

How is this related to my comment 3 years back? My questions are still valid btw. I've yet to have the time (or need) to get into SMD. 😬

@paulgrodkowski3412 2 жыл бұрын

@@ristomatti My apologies.

@habtamusium8646 2 жыл бұрын

it was my gap to identify the flux and know how to apply them for my new business plan , now i begin my 1st step . many thanks ! lovely work .

@Galactus314 3 жыл бұрын

These fluxes were all tested on surface mount components, using PCBs with no vias. When heated, they all turn to liquid, and near by vias could drain it away. The liquid fluxes you can clearly see evaporating along the right edge at 6:20 and 6:50 respectively. They seems to have very limited uses. As someone else commented, I'm curious how the SRA No Clean Tacky Flux could handle those condtions. Also, I do a fair amount of through-hole soldering, and literally all of these fluxes are simply too thin for that. So I'm seeing a good case for another video. Boards with vias, the SRA flux, and something for the THT crowd (zinc chloride, as well as non-ZCl). Thanks!

@Shay_Nichol 3 жыл бұрын

Since watching this video when it was released I've been using CIF at work and it's helped a lot! thank you!

@AmeyJadiye 2 жыл бұрын

Thanks for such a nice demo, it's quite useful even after two years to understand the in-out of the usability of flux. I have tried a few cheap fluxes with bad results. for me, the liquid one turned out to be the best one. thanks again for your guidance. I was also expecting this to be tried on raw copper endpoints to see the effectiveness.

@OriginalMergatroid 2 жыл бұрын

Excellent video. I have been using MG Chemicals flux pen that is a liquid flux. This is the stuff Nintendo recommended to us about two decades ago. I never did like it much and it was constantly bridging, especially on the last few pins. If course, those ships had over 100 pins so the gap between the pins was smaller. I just ordered some MG No Clean solder paste before coming across your video. I am happy it performed well in your tests. I would love to see some examples of how to resolder a BGA chip using this flux.

@deangreenhough1178 3 жыл бұрын

Absolutely superb analysis. Many thanks for the work and effort that went into this video. Off to buy the CIF flux as recommended. Many thanks Steve

@els1f 4 жыл бұрын

Man, your channel is incredible! So much great info 👍

@imqqmi 2 жыл бұрын

Agreed, it's a goldmine of info!

@tonybell1597 5 жыл бұрын

Excellent work, thanks, its always been the source of dilemma: "Which flux is best", heard across You Tube repair channels, so this is some really excellent advice, many thanks....

@sdgelectronics 5 жыл бұрын

My testing is probably in no way authoritative, but hopefully it gives some reference for anyone unsure. Thanks

@johnyang799 5 жыл бұрын

@@sdgelectronics Can we get a test of how fast does the flux get boiled off?

@sdgelectronics 5 жыл бұрын

@@johnyang799 yes, coming soon

@cdyoutoob 4 жыл бұрын

Would be good to see this done after 12-18 month with a broader range of fluxes. Perhaps ask viewers to submit flux suggestions. And also to have a review panels of other engineers / friends score the solutions. Could show off the corrosion of the test boards done from a year before so we can access long term viability of solder.

@Hackvlog 5 жыл бұрын

I used to use some other liquid flux, but can't remember which brand it was. It had same properties as the ones you tested: More flux was needed for larger IC's. It either boiled away or spread so much, there wasn't enough flux around the last pins. Practice will make it better, but main cause is the properties of the flux. In my opinion liquid flux is very easy and quick to apply. I'll add TK83 to my shopping list, thanks to your video! Well done with the comparison!

@sdgelectronics 5 жыл бұрын

I think the liquid fluxes just aren't as suited to this particular style of soldering. It would be great for BGA style work as the liquid is drawn into gaps easily. It also cleaned off very easily. Thanks

@joepangit6938 3 жыл бұрын

The yellow tub of Bangood flux is really nice, and can ship from USA. The only down side to it, is that a brand new one weighs 113 grams including the container. So it's maybe 100g, not the 150g they sell it as.

@danfreeman8225 3 жыл бұрын

Outstanding vid! Great layout, info and timing. Also excellent layout of links! I might suggest a couple things that might help. It could be handy to know the details of the solder you used and the temp (if you had a way to measure) and having video times next to the list in the description. Thanks so much, it really helped!

@ocobotec 3 жыл бұрын

Excellent video, I had been watching videos of solder paste all afternoon and this one is really worth watching.

@anastasiosbetzelos4954 4 жыл бұрын

Just wanted to say thank you for the very useful info and for your time spent on this video!! Subscribed to the channel in a nutshell after checking your other videos as well!!

@jamesdavies686 3 жыл бұрын

Watching this again it's interesting how the solder climbs the component leg on some but not other fluxes, even if the flux did well with no bridges.

@ivanr5315 8 ай бұрын

Although an old video, it is really useful. I used to use the amtech fake flux for years and recently tried the CIF. The CIF leaves a sticky residue that in my opinion needs to be cleaned. Fortunately it is easy to clean.

@tomvleeuwen 4 жыл бұрын

I would be interested in how good these fluxes perform when using hot air soldering.

@Kholaslittlespot1 Жыл бұрын

Yeah, this is when the liquid fluxes should come into their own

@pentachronic 4 жыл бұрын

Very useful video. I've been using a liquid MG rosin flux for the last 5+ years and It's worked well but leaves a horrible residue which I have to laboriously clean with alcohol. Was looking for a newer style flux and your review has been very helpful. Just ordered through one of your links. Thanks.

@allanknox8216 2 жыл бұрын

CHANGE TO OA FLUX! You'll never look back.

@nerijusk9598 2 жыл бұрын

@@allanknox8216 what is OA flux?

@allanknox8216 2 жыл бұрын

@@nerijusk9598 OA flux stands for "Organic acid" it has stuff like citric and phosphoric acids - all water soluble. It's pretty aggressive and completely cleaned with warm water - no solvents. I only switched because every CM I worked with was already using it. Rosin flux has been out of favor for a long time. Chine uses no-clean to save money.

@TheMechatronicEngineer 3 жыл бұрын

One of the best flux comparison I've ever seen! What do you use to clean the flux residue?

@sombatone Жыл бұрын

Isopropyl alcohol

@thesocker7920 6 ай бұрын

@@sombatone 99% ISP

@subukai 3 жыл бұрын

Thanks for the review. I ordered some of the Yellow Solder paste. It will probably take a couple weeks to get to me but the price was right.

@jiribekr Жыл бұрын

Many thanks for the extensive test! Bought 10pcs of fake Amtech NC-223-ASM based on Your test, and regret nothing. Much better than liquid fluxes and rosin I used before.

@sdgelectronics Жыл бұрын

Thanks! Glad it works for you

@jw200 4 жыл бұрын

Thanks, very useful. I would like to see same about solder paste for SMD. (the grey one). Which one is good? I have one from Aliexpress but its drying out and its unusable.

@PapaGleb 3 жыл бұрын

Great video. Quick question, is there a way to turn a paste flux softer to put it in a tube/syringe? I just started to with electronics repair and purchased basic tools which got to me this flux as it was the cheapest but its so hard to apply.

@dvmavgoor 5 жыл бұрын

Zinc chloride containing fluxes (such as the weller one) are not suitable for electronic components soldering, they are mostly for plumbing since ZnCl2 is pretty corosive and has to be removed after soldering. Moreover, ZnCl2 is extremely dangerous for a human: it's a skin irritant and its fumes cause lungs diseases.

@sdgelectronics 5 жыл бұрын

Interesting, I hadn't noticed the composition but it was picked out alongside the other flux pastes from an electronics supplier.

@marcotestarmata 5 жыл бұрын

IMHO the genuine Amtech really shine when used with an hot air gun. It really make the difference, it stays there active for a long time but you really need good ventilation or a real fume extractor, it is very smoky. The fake Amtech's residue are much harder to remove and they spread wider on the board. It is cheap but i won't buy it again. For general soldering i like to use the liquid TOPNIK RF800 in a squeeze bottle with a fine gauge needle. I work mostly with beefy through hole components. RF800's residue are really easy to remove with IPA and the flux works very well and it is not very smoky. Liquid flux are good just with a soldering iron. With hot air you need a gel flux, and the Amtech is the the best flux i've ever used. Just my two cents.

@sdgelectronics 5 жыл бұрын

I'm going to do a test with hot air shortly - firstly with the PCB used in this video, but it sounds like it would be worth getting another test board with some large ICs and a ground plane on it. Thanks

@Slavolko 4 жыл бұрын

Louis Rossmann swears by genuine Amtech flux for all the work he does. In fact, he buys and re-sells them because he trusts them that much and wants others to be able to reliably source the genuine parts.

@pr0xZen 4 жыл бұрын

@@Slavolko It's fair to promote it as it's genuinely great for its appropriate usecases. But its also really expensive, at least for those who do not generate any revenue on soldering work. And for many of those without a national/regional distributor, as international shipping and potential import taxes can make the total price really brutal. I need to point out that the sentiment pushed by Louis about the _process of buying_ Amtech flux is a horrible ordeal involving faxing orders etc, is either false or long outdated. You can just order it online from Amtechdirect.com . They're one of the few official distributors for Iventec (Amtech is a product lineup, Iventec is the company), and as such they keep shipment-ready stock of pretty much the whole Amtech lineup. So if you need _anything else_ from the Amtech lineup, these guys are great to have around, as you don't need to worry about getting fake products. That said - unless you want 10cc quanitites, or large tubs, buying no clean 559V2 tacky flux from Rossmanngroup is not a bad idea at all if the shipping etc works for you. Because the 30cc units Rossmann Group sell, are $16. From Amtechdirect they're $27.

@MPETE1976 3 жыл бұрын

Good to see RF800 being recommended as I have a 100ml and 2x50ml bottles + some other stuff coming my way from Poland this week.

@MPETE1976 3 жыл бұрын

@@pr0xZen $34.99

@IanScottJohnston 5 жыл бұрын

Thanks for the extremely useful video Steve...........wonder if you could you drop the PCB into an ultrasonic cleaner for 30 secs on a low temperature to see if they clean off ok?

@sdgelectronics 5 жыл бұрын

Thanks Ian, an ultrasonic bath is next on my list - just need to work out which one to get...

@helenh9563 2 жыл бұрын

Love this video, thanks so much! I do would like more emphasis on environmental impact of the different fluxes.

@jerryrojas5216 2 жыл бұрын

This was a great & well done video! Thank you for the great reviews & results breakdown

@Nanospear Жыл бұрын

Excellent video, I enjoyed the demonstration with each product. Kudos!

@japonicaren 5 жыл бұрын

What type of solder did you use? Lead free? That's probably a good video topic of you haven't covered that yet. Temperatures and extra caution with lead free reflow timing etc.

@CarlosMartinez-px9xo Жыл бұрын

Hi, awesome video! I'm from Latin America and I've seen many weird fluxes. Some can ruin a board, like when liquid amber flux dripped on a hard drive and dissolved the copper. Sadly, I didn't see it for a month or two, so it was too late. I suggest trying a good board and switching pads between isolated and connected ones. This can act as a heatsink, change the performance, and show more differences between the fluxes.

@fibranijevidra 4 жыл бұрын

Nice comparison. It would be great if you could make v2 with other comparisons mentioned in the comments. You already have all those fluxes, so it would not take much effort.

@robertcalkjr.8325 5 жыл бұрын

Thanks Steve! Here lately I have been using Chip Quik SMD291 No Clean Tack Flux for SMD work. It seems to work great.

@pa4tim 5 жыл бұрын

I used that too, I loved it but Farnell took it out of their assortment. Now I use the Topnik TK83 (after trying several others). It is not as good as the Chip Quik but good enough. I liked the tacky stuff because it holds the component on its place (i use it professional for repair work)

@sdgelectronics 5 жыл бұрын

I used to use several different Chip Quik fluxes, but I noticed Farnell have dropped many of their lines, so it's not as easily available.

@pa4tim 5 жыл бұрын

@@sdgelectronics OK, you are right, it does not make sense to test it, if it is hard to get. I hated that I needed to find a replacement because the stuff is not cheap and I did not like the most I tested. The same goes for solder. Thanks, this was very interesting video.

@robertcalkjr.8325 5 жыл бұрын

pa4tim I am just a hobbyist but I am starting to get pretty good at microsoldering and using my rework station. I also try to always use my board preheater. The preheater makes rework easier for me.

@robertcalkjr.8325 5 жыл бұрын

SDG Electronics Hmm, sounds like Chip Quik needs to get on the ball! They are losing money!

@decem_unosquattro9538 Жыл бұрын

I started using Amtec - 559 -ASM - TF Expiry date June 8, 2023. I ordered it and it arrived 13 April 2023. I paid 79.91 AUD which to me was insane. Now its $198.12 which is really insane. 😂 I might get the CIF next. Thanks for the review.

@Sherifone78 4 жыл бұрын

One of best videos ever, best explanation. Thanks, subscribed

@srikanthswt 2 жыл бұрын

Nice video. It's satisfying to see the solder flow. I did not see you mentioning which Solder you used for this. By the way it flowed it felt like Leaded, any chance it is unleaded?

@Voidsworn 4 жыл бұрын

I ended up getting 5 tubs of the NT pretty cheap, like $12 and change. Still trying to figure out WHAT it is exactly. It just smells like some kind of wax/paraffin when heated and leaves a greasy residue that doesn't really clean off easily with IPA. I have a feeling it is less a flux and more just a heat transfer medium. I mean, it works for some SMT rework.

@linkavichtruousky1 5 жыл бұрын

I have previously bought inexpensive Chinese flux and after using it even in a well ventilated area would feel a bit sick sort of like flu symptoms. After switching to a name product i dont get this anymore so be careful as i have no idea whats in the cheap stuff and I’m sure there is not much quality control happening. The cheap flux cost me $1 AU compared to $15 AU for a rosin flux that i use now.

@frankpitochelli6786 2 жыл бұрын

I often use a flux pen, it looks like a felt tip.... you push down on the tip and it soaks the tip....then it's applied to the joint to be soldered, however, for me it doesn't seem to work as well as the paste type fluxes, but it does the job....the syringe type fluxes can be tricky since they tend to glob it out per sae. But, IMO....most fluxes work just as well as the next, alot has to do with soldering techniques as well. Thank you for all the technical video's that you put together, they are alot of work for you tubers...but are very informative.!

@tookitogo 5 жыл бұрын

Ummm... the Weller flux says right on the tub that it contains zinc chloride, meaning it’s an acid based plumbing flux.

@enteranon3342 4 жыл бұрын

Yes it is IPA make this clumbi

@Zellonous 4 ай бұрын

the great thing about tubs is being able to dip wires into them for wire tinning, etc.

@sammccormick1 Жыл бұрын

I got some of the Chinese flux, which is very sticky and seems to be based on a type of paraffin wax. I mixed it with some (15% ish) mineral oil (corn oil in my case) and achieved a soft butter-like consistency that allows it to be loaded into a syringe, It performed the same as in the video however it was much easier to handle coming from a syringe. I used a 1mm metal tip on the syringe. Cost for 10 cc was approx $0.85 (115cc of flux cost $11 inc delivery). I am sure other types of mineral oil will produce similar results.

@connormccarter9581 3 жыл бұрын

This was an excellent comparison and some of the nicest fine pin soldering I have yet seen! I had a question or maybe a future experiment. Have you considered dipping the legs into any of the fluxes as a possibly cleaner application method? Thank you.

@kevinbaker2470 2 жыл бұрын

Don't think any professional is gonna be that stingy with their flux. In the grand scheme of things flux is cheap. Vif you have a pcb that has alot of nooks and crannys you're afraid of leaving behind some flux you might have missed, use a clear flux, or one that has a low rosin content. Also keep some 99% IPA or electrical parts cleaner for fast clean up

@javierferrerL 4 жыл бұрын

Hi there, goodflux comparision in a vídeo. Please confirm me, the sort of flux you explain on video, is it the recomendation from best to worse flux? Regards

@Foche_T._Schitt 2 жыл бұрын

It would be interesting to know how they perform well past expiration.

@poptartmcjelly7054 3 жыл бұрын

I use pure rosin as flux for soldering and it does work pretty well but i notice that certain solvents fail to clean it off and may even leave white/yellowish deposits that i find hard to clean off after.

@sdgelectronics 3 жыл бұрын

Rosin sets hard and almost always needs abrasion as well as a solvent to clean it off.

@ShallRemainUnknown 2 жыл бұрын

Can the yellow-topped 150g tub of "NT Advanced Quality ZJ-18" soldering paste (link #1 in vid description) be loaded into syringe and flow out of the small syringe tip easily enough , or does it need to be liquified more to do so? If you need to liquify it more, would you best do so with isopropyl alcohol, in the 70-90 percent range?

@b.w.oostdam8875 Жыл бұрын

Thank you very much for this very informative video. I have an additional question, is there a UV curing soldering mask ink you would recommend ? I tried one but either the UV_light did not do well (sunlight did not help) or the ink is not ok. Maybe I should have thoroughly shaken the capsule before use ? I tried to repair some minute traces and pads with it, without much success Yhank you very much for all te informative videos

@StephenFarthing 5 жыл бұрын

Thanks for the video Steve. Have you ever used an ultrasonic cleaner to remove flux residue after soldering?

@sdgelectronics 5 жыл бұрын

Not at home, but I'm looking out for a good deal on an ultrasonic bath for this. Thanks

@thepdails 4 ай бұрын

Updated link for the CIF? Are you still using it as your preferred option?

@rich1051414 5 жыл бұрын

I use SRA Rosin Paste Flux #135. Kind of thick for SMD, but it's really tacky which I like.

@Limeayy 4 жыл бұрын

OMFG, i'm in love with your channel already. I was thinking about using Amtech NC-559 as well, great you have a comparison. I'm a new subscriber. Thanks and keep up the great work!

@dimbulb330 5 жыл бұрын

Very good presentation. Making the video two minutes longer you could have just mentioned the basic classification of r, rma, ra for each one as you went along, the same with the solder video. Again, well done.

@sdgelectronics 5 жыл бұрын

I have a couple of follow-up videos, so I'll be sure to include this info - thanks for the suggestion.

@WACkZerden Жыл бұрын

very informative and satisfying to watch. thank you for doing this.

@DoctoreDoom 3 жыл бұрын

Thank you for making this video, you have a great channel!

@TheDefpom 5 жыл бұрын

Can you do the same test with hot air please?

@sdgelectronics 5 жыл бұрын

Good idea, I'll give it a go.

@jerm5772 3 жыл бұрын

Is there a possibility that the each test was affected by the previous test from having remnants of flux on the soldering tip? You liked the results of the C.I.F. rosin test. So maybe the LP-1 rosin affected the C.I.F. test?

@RFC-3514 Жыл бұрын

Flux generally evaporates well below the temperature of the iron. Even if he didn't clean the tip (which he probably did), he would have had to move immediately from one chip to the next to have any residue of the previous flux left on the tip. That's why flux core solder needs to be melted directly onto the item you're trying to solder (because if you apply it to the tip of the iron first, it boils / evaporates in seconds, before you can transfer it to the components).

@fahedkhan3008 2 жыл бұрын

You are a very good analyst. Very good video. Hats off.

@gervaisdube1843 3 жыл бұрын

Very helpfull for a beginner like me and a nice demo of soldering technique for those components. Thanks!

@meenroy 5 жыл бұрын

thANKS, i was looking for this video.

@goodman2008new 4 жыл бұрын

I am finding that my flux is drying up too quickly. Especially when I solder a QFN chip, I wish the flux can stay longer and keep the solder flowing. Do you think the staying time an important parameter to compare between difference makes of flux?

@Josh.Davidson 2 жыл бұрын

Very good video. My (genuine) Amtech NC-559-V2-TF comes out a little more tacky then the one in the video though, which I found interesting.

@timbiddulph 2 ай бұрын

Genuinely useful video, thanks!

@KrotowX Жыл бұрын

Now would like to see proper board cleaning from flux residue tutorial :) Although PRF 6-68 cleaner liquid with cotton swabs do the thing just fine, I'm curious about how to get flux residue out of bottom of ICs. What I noticed - JBC C245931 minispoon tip still do the job on QFP packages very good. BST-223 paste is not so good for small QFP ICs and USB sockets. Once fried few traces on board and one microUSB socket because used BST-223 and pins instantly got swamped under solder. Damaged bothsoccket and traces on PCB while struggled with excess solder cleanup.

@user-vz4bo1en8x 3 жыл бұрын

Mechanic is actually one of the best cheapo brands to work with, both solder wire, paste and flux works really nice.

@MPETE1976 3 жыл бұрын

Agree. I like that it is available in a wide variety of diameters and spool sizes for the wire. Paste in 6-7 or so tub sizes + syringes. Have yet to try the flux though.

@wartlme 3 жыл бұрын

Glad I found the video. This reminds me of "Project Farm" but for electronics. Just an honest review of products.

@MAKAWELI187 4 жыл бұрын

Great video, and reading the comments also was informative thx for that as well guys, great questions to ask. So when some of you mentioned ultrasonic cleaning, is that in tap water or..? I'm not feeling well about putting electronics in water at all.

@miko8732 3 жыл бұрын

It's usually in isopropyl alcohol

@Royal_LXIX 5 ай бұрын

Nice! Thanks for the video, been looking for a breakdown of the different fluxes. That third paste was real bad haha, looked like it bridged the last like 4 pins as well

@rhalfik 2 ай бұрын

I use topnik mostly because it's a local brand, but I can tell that gel works better than liquids. They have their use for sure, but they're displaced too quickly with heat. Gel is more persistent. It's also easy to wash away and I don't get the problem with lumps, although I find a small brush useful as with any flux.

@rickshabin 4 жыл бұрын

Informative. Professionally made.Good.

@pedroborges2672 4 жыл бұрын

Good, what is the best flux of those that are in the video to use ?

@abeleski 5 жыл бұрын

Thank you. Very interesting video. I would like you to expand your video to test a couple of other characteristics. Effectiveness on oxidised components and also even more important for me how fast the flux burns off. Especially important for hot air when a lot of times we have the heat on for a while. I believe the genuine amtech is what is supposed to set it apart from the others in this regard as it stays aroind for longer. Would be great to see some sort of a test for it. Thanks again.

@sdgelectronics 5 жыл бұрын

I'll work out a video with the same PCB, maybe removing and re-applying the IC with hot air. Thanks :)

@abeleski 5 жыл бұрын

@@sdgelectronics your current pcb is probably not a good example. You need those quad pack chips that have a big ground plane on bottom. Your current chip and pcb would be easy to remove with hot air. You need to simulate a large ground plane fighting off yoir heat gun if i am making sense

@dankan4459 3 жыл бұрын

@@sdgelectronics did you ever make the hot air station video? Great vids btw

@kuro68000 5 жыл бұрын

"No clean" I've yet to find a flux that really is no clean on anything but the simplest boards.

@rich1051414 5 жыл бұрын

What that means is, 'no longer active when cool'. It will still look like snot crust :P It just won't hurt anything but your eyes.

@pr0xZen 4 жыл бұрын

While the point is that leaving the residues on there should cause no long term issues, two things to still consider is such: 1. If you _do_ want or need to clean it properly off, it usually will take more work and need solvents, ie not water soluable. 2. If there's a whole lot left on there, it could pose a nuisance or even challenge, for potential future troubleshooting, due to its material properties once all its solvent/suspension content has dissipated, and how it's _relatively_ significantly more work to remove (than water soluable flux). "Clear" ones shouldn't pose issues for visual inspection, but some leave a white residue that can obstruct visual indicators.

@tookitogo 3 жыл бұрын

@@rich1051414 More specifically still, it means it's no longer active when cool AND after being fully heated to soldering temperatures once. Many no-clean fluxes are corrosive if they've been partly heated, as happens if you use it to tin stranded wire (where the flux melts and wicks under the insulation as the wire begins to heat, but long before it's reached soldering temperature). I'm running an experiment right now, where I took all the fluxes at work and from home and used them to tin some clear-insulated wire, as well as applying the same flux to another piece of the same wire, but not tinning or heating it all. Only one paste flux (a non-no-clean rosin flux gel) has caused corrosion on the unheated wire, but several no-clean pastes are causing corrosion under the insulation. (Same with some no-clean liquid fluxes.) In essence, most fluxes need to reach a temperature high enough to neutralize them. (The big exception is the water-soluble fluxes, which will remain corrosive no matter what, and thus must be flawlessly removed, making them unusable for things like stranded wire.)

@zwerne42 3 жыл бұрын

@@tookitogo Hey there. How are the experiments going?

@pedroborges5203 4 жыл бұрын

good, of the flux you tested and showed in the video which is the best flux to use ?

@midrone4349 3 жыл бұрын

Two things that are missing in this great test (unless I was sleeping). What is used to clean with after.. and what is the overall toxity. In eval, the residue and toxity should be counted. Its not optimal if the most toxic and polluting is ranged as best (Thats why lead is drawn from solder). Secondly, I would have liked to know about when to use paste or solder (i guess paste is for bare cobber).

@RFC-3514 Жыл бұрын

How do you expect him to "count the toxicity", exactly?

@MarkFixesStuff 4 жыл бұрын

Great video. Really helpful!

@hadiffnazhan862 3 жыл бұрын

that cheap "NT" branded soldering paste was surprisingly good, around 2 dollars for 50g here in malaysia

@TechnologyHive 3 ай бұрын

Very nice comparison! Thanks for sharing!

@cezarymuchowiecki8748 2 жыл бұрын

Hello. Which flux, in your opinion, is the easiest to remove with isopropyl alcohol? What do you think about warton metals (it contains resin)?

@ZoruaZorroark 3 жыл бұрын

even though its been 26 years since my dad did soldering, i can still smell the flux

@cihanbozkir Жыл бұрын

Thanks a lot for the review. What do you use for placing the IC on? I need something like that which is heat resistant and I can solder on.

@BaronVonBeef 3 жыл бұрын

Just ordered some of the banggood yellow flux paste because of this video

@nigelman9506 11 ай бұрын

In one placed I worked at, I used a Flux pen with long bristles, it was like clear jelly and was fantastic on surface mount ic's with the solder pads underneath, did not evaporate and easy to clean, I don't remember the name of it

@djalienprime 5 жыл бұрын

Now perform the SIR test for all the fluxes from this video. I'm (almost) sure you'll be (unplesantly) surprised. The quality of solder joints is not the only important thing you should worry about: some fluxes remaining conductive or (even worse) creating a capacitance between the leads if not cleaned off. So you will have a bad time debugging your assembled device (especially on high-frequency parts: MCUs and quartz resonators).

@onetech1627 3 жыл бұрын

TRUE. I'm agreed with you.

@user-zc8sd8jx8s 7 ай бұрын

yeah that's totally right. every flux comparison, unless you're using them to solder power wires or low-impedance low-frequency circuits, has to include a conductivity test.

@bobtronic73 6 ай бұрын

Thanks for doing this comparison.

@tristankordek 4 жыл бұрын

There was a problem when soldering with TK83 because the maximum application temperature is 280 degrees Celsius I suspect that you overheated it and began to boil, after adding another portion of flux, it just cooled down and soldering went fantastic again. Because I am Polish and TK83 and LP-1 are Polish fluxes, I know a bit more about them, if I remember correctly, we used the AG-5 flux for soldering at higher temperatures (up to 400). We have used them for many years and in general AG TermoPasty products are very popular in our country (they are cheap but very good). By the way, the Polish word "Topnik" means Flux from the Polish word Topić - melt. I forgot to write, people start reading the manuals, there is all the information about the products you want to use. Thank you for this movie is very cool.

@BahtiyarAliALHAS 3 жыл бұрын

Hi; what do you know about rf800. I couldn't find the application temperature about it ?