Great video! Believe it or not, I've used a similar technique for almost 25 years, except using a KimWipe slightly dampened with isopropyl and a horsehair acid brush to move it around. I got the idea from a mid-90's Pace Worldwide video, where they suggest using low-temp hot air alone to "dry a board before rework."
Dude! the PACE videos are Fuego!, I had a chance to have a long talk with one of their reps who was around in those days, He actually let me know that they spent well over a million dollars producing those videos! Crazy fact! I appreciate the view and comment!
Yes sir! The new update to this video uses a clean room cloth or a Kim tech as you suggest. I assumed it was an old technique for sure haha. Tbh most of the stuff I do and we do as a whole do are already perfected in the industrial space but from a semi pro hobby space as still need 😃 I appreciate the comment hope I see you in more comments down the road 😎
This one video was worth the cost of admission!! Sometimes that suspended flux carries unwanted conductors that cause intermittent shorts. Thanks for this.
Well, I use lacquer thinner first with the paper towel, then use alcohol and the paper towel. Then I go over it with just a clean toothbrush and alcohol. I haven't got up the courage to put a board in the Ultrasonic because I just have a small cheaper one.
I may try it sometime. I need to save up and get a nice US. What do you think about the Crest US that Louis Rossmann recommends? I will try your flux removal method next time and use my hot-air with it also. I have been using my rework station for a lot more stuff lately. I can make nicer cables and stuff using the rework station and solder paste instead of an iron, with less flux to clean up.
Hey Justin, have you ever tried "Foam Swabs"? Cotton swabs always left cotton behind while cleaning which was pretty annoying. Recently been using foam swabs and so far it's been an upgrade...imo.
@@TheArtofRepair Link: www.amazon.com/gp/aw/d/B01DX7N2B0 There are cheaper options all over the internet however since this my first testing them, I want to see how well it works before I buy bulk overseas.
Clean, clean, clean! Some people don’t like it. Oh well, get over it! Having clean surfaces enables you to see potential problems which may still exist. It also may reveal something you left undone. Fluxes may leave residual materials in suspension which can attract dirt or moisture, neither which you want left on the board surface. It’s bad practice to leave unclean surfaces and it’s unprofessional to boot! If it isn’t left looking bad it isn’t going to be another problem to come back and haunt you. Okay? It’s not that hard!
You could probably just use the lowest setting on your heat gun and be fine. You just want the isopropyl to flash immediately. So well above room temp, yet well below melting point is all that is really needed. If your gun goes down to 100°C, that'll work too.
The flux in my solder if I leave it on my soldering iron tip set to 320C it leaves a carbon residue after all the flux evaporates. Any tips for removing this carbon build up?
I was pleasantly surprised to see you using a binocular microscope while wearing spectacles. I cannot manage to to that. Do you use special pads on the viewing lenses?
whats about resinified complete dry - years old - flu, which you can scratch away (but want to avoid to do it mechanicly?) ? i noticed that your method dont work there... thx for info.
I ripped the battery connector plug the motherboard from my son's ps4 pro when trying to clean it What do I need to do to remove the leftover crap and get the connector back ready for mounting
Great vid, thanks for sharing!! Quick question; what kind of flux did you use there (no-clean, rosin, RMA or something else)? I've been using no-clean for a long while now, but cleaning (when needed) is a hassle since it requires other types of detergent than IPA and still is kinda tricky to get off the PCB.
Thanks for sharing. This video was longer than others that I was looking up but I'm glad I watched it, albeit just the important parts. Question if you see this: what is the purpose of using extra flux in soldering if the solder I use already has flux in the core?
can I use deoxit? Or nail polish remover? It's hard to find 90% isopropyl due to pandemic. I want to desolder using a flux braid... but want to clean the board and components when I'm done using it
A sort of related question. When you do use the ultrasonic cleaner do you use flux remover in it or straight isopropyl? Can you put potentiometers in it as well?
Sometimes when I am lazy after cleaning up flux & I see a bridged joint, I just add ISO and then remove my solder. Yup, I use ISO as flux when I am lazy. Hehehe
Can we also use little bit of wd40 on qtips without any heat, I've used it once and it does gets the job done pretty much nicely. Also you can also use some ip after that to clear the leftover wd40. So is it a good Idea ? Let me know. Thanks!
Can I use something stronger that isopropyl alcohol, like aceton for example (its what I got on hand)? or wil it ruin the board? and is this flux any good for micro soldering: Weller LW25? (what they got at my loca store)
Honestly, acetone could potentially eat up coatings, I would suggest sticking with ISO for pretty much all flux cleanup. As long as you dont let the flux sit for months it should come right off with iso =)
Around 7:45 the flash point of isopropyl alcohol is stated to be much higher than the temperatures used in this video, but I think that this should be the autoignition temperature. Flash point for iso is generally in the 10-20 °C range depending on concentration.
What could be used to clean the back of a car instrument cluster that has lead free solder and is bleeding milli amps to ground due to silver migration on the board? thanks
Is there any risk of ESD from the cue-tips? I always think clean up is the point where most people are putting tons of non-ESD safe equipment in contact with boards. Is it an issue?
Greetings, I am an auto tech retired, but it's my job to fix everything. You said your temp was 140. In engineering and diagnostics flows charts, they always give you temperature in "C" and "F". Is this 140 degrees F? As solder melts at 420-450 degrees F, I am sure it take no time to crank up the temp to work. No auto tech want to turn on the compressor while holding the air impact & socket. Also, I have seen many debates turn into arguments about isopropyl alcohol. Some say say crazy stuff like never use it. Is 75% work for a guy who is a part time Mr Fit It? 99% is a little expensive to have sitting around. Although, in Iowa, Nebraska and nearby, pure 100% ethanol is produced. This is not isopropyl but when aged in chard oak barrels, taste good! Do you have a sweep frequency ultrasound cleaner w/distilled water or special cleaner. Sorry to ask so many questions but sometimes it's hard to find someone who knows what works! Best practice works for me, in auto repair or electronics. I had to subscribe & like. My task (Among Many) is a dead short on my 3 year old Dell Inspiron 15. Can't afford new.
Hello dear friend, I understand very little English, please type it for me so that I can look it up in Google Translate. Did you use only cotton and hot air or cotton and hot air and thinner?
So, i have no heat gun so should i just melt the flux with my iron and use the qtip and rubbing alcool anyway? Also, i heard in another video that leftover flux rosin can end up corroding the circuit, is that true?
Corrosion depends on the brand and composition of the flux. Even a small cheap heat gun from your local hardware store will help, Heat makes the flux gain more viscosity which allows it to be soaked up by the qtip =)
Just based on what information and studies are available, it does not look to be that IsoAlch is carcinogenic, but then again, people use to wash their hands with gasoline till they learned later on of the effects it can have. Proper safety is always practiced at the Art of Repair, nonpermeable gloves plus proper fume extraction are in use during work =). Thank you for bringing up chemical safety though, as it is still an important topic! I hope to see you in the comments section again soon!
Unfortunately sometimes my webcam just has a mind of its own. Truly a sad thing. Feels like with identical lighting, from video to video it will just do whatever it feels like even after tons of adjustment, but your right, it makes me want to scream sometimes XD
This was great, thanks, been searching for "how do you fix a burnt soldering pad?" for a while now, and I think this has helped. Have you heard people talk about - Giyathan Bewildering Gratification - (do a search on google ) ? It is a smashing one of a kind product for discovering how to repair your electronic items like a wizard without the headache. Ive heard some super things about it and my friend got great results with it.
This is the best green screen quality I have ever seen on youtube. Ever.
So SO serious!!
No, I'm serious. Sorry for sounding sarcastic. It's kinda neat.
Hnnnh. He said best green quality. Hnnhnnnhnnn.
Great video! Believe it or not, I've used a similar technique for almost 25 years, except using a KimWipe slightly dampened with isopropyl and a horsehair acid brush to move it around. I got the idea from a mid-90's Pace Worldwide video, where they suggest using low-temp hot air alone to "dry a board before rework."
Dude! the PACE videos are Fuego!, I had a chance to have a long talk with one of their reps who was around in those days, He actually let me know that they spent well over a million dollars producing those videos! Crazy fact! I appreciate the view and comment!
Yes sir! The new update to this video uses a clean room cloth or a Kim tech as you suggest. I assumed it was an old technique for sure haha. Tbh most of the stuff I do and we do as a whole do are already perfected in the industrial space but from a semi pro hobby space as still need 😃
I appreciate the comment hope I see you in more comments down the road 😎
This one video was worth the cost of admission!! Sometimes that suspended flux carries unwanted conductors that cause intermittent shorts. Thanks for this.
Right on dude! Im glad you got something out of the video. =) I appreciate the view and comment, hope to see you in the comments again in the future!
I was at my local repair shop and he started bad mouthing RUclips repair channels for giving away trade secrets and now he’s getting less business.
Hes mad about the spread of knowledge? Does he do advanced repairs?
TheArtofRepair he repairs iPhones at board level.
What do you mean?
I can't believe I never thought about this... thanks mate!
Had the problem of stuck flux just this morning. Thanks for the solution!
Your videos are the best I've seen so far. It's accurate and entertaining. Great job!
That is an epic microscope.
Thanks Justin! Sometimes I use a soft toothbrush over some lint-free paper towels.
This for sure works well! I just hate there being any left over residual flux lol
Well, I use lacquer thinner first with the paper towel, then use alcohol and the paper towel. Then I go over it with just a clean toothbrush and alcohol.
I haven't got up the courage to put a board in the Ultrasonic because I just have a small cheaper one.
Also I usually use my board preheater so the board is still warm.
Honestly, After the job is complete, even a cheap US should do just find for basic flux cleanup if you want that extra polish =)
I may try it sometime. I need to save up and get a nice US. What do you think about the Crest US that Louis Rossmann recommends?
I will try your flux removal method next time and use my hot-air with it also. I have been using my rework station for a lot more stuff lately. I can make nicer cables and stuff using the rework station and solder paste instead of an iron, with less flux to clean up.
Makes perfect sense. Have a nice day sir.
Hey Justin, have you ever tried "Foam Swabs"? Cotton swabs always left cotton behind while cleaning which was pretty annoying. Recently been using foam swabs and so far it's been an upgrade...imo.
Oh no! I have not. Link me to what you use, ill check them out =D
@@TheArtofRepair Link: www.amazon.com/gp/aw/d/B01DX7N2B0
There are cheaper options all over the internet however since this my first testing them, I want to see how well it works before I buy bulk overseas.
Thank you so much for this! I’m now confident that I can clean some recap repairs I’m doing with this technique. Super helpful!!
one of the best super clean videos i have seen.
does this also work for cleaning atencils ? 🙂
@@krantikoganti yea I would actually try and use ethanol these days and with stencils skip the qtip and just rough scrub with the clean room cloth :)
Clean, clean, clean! Some people don’t like it. Oh well, get over it! Having clean surfaces enables you to see potential problems which may still exist. It also may reveal something you left undone. Fluxes may leave residual materials in suspension which can attract dirt or moisture, neither which you want left on the board surface. It’s bad practice to leave unclean surfaces and it’s unprofessional to boot! If it isn’t left looking bad it isn’t going to be another problem to come back and haunt you. Okay? It’s not that hard!
an absolutely superb tip and methedology.very well explained and demonstrated.thankyou loads.keep up the great work sir.
looks like am first....i liked the video before i even watched...cause i know its gooood!!
bro, you know it!
Yet again, great video Justin. You state 140° to remove Apple under fill, however, is that °C or °F?
C =)
You could probably just use the lowest setting on your heat gun and be fine. You just want the isopropyl to flash immediately. So well above room temp, yet well below melting point is all that is really needed. If your gun goes down to 100°C, that'll work too.
The flux in my solder if I leave it on my soldering iron tip set to 320C it leaves a carbon residue after all the flux evaporates. Any tips for removing this carbon build up?
🙏 thank you. This is amazing.
You the man about to try it rite now
Good job. I learned something....thanks!
@@johnd942 right on! Glad to hear it and happy to see this comment. Hope to see you in other videos in the future :)
Fundamental = Fun (for) the Mental :P Thank you for this real effective trick. 👍
thank u great idea. i knew there was an answer to sticky boards.
Happy to help! Thank you for commenting and letting me know it worked out =D
What is the percentage of air you are running at?
I am going to try this.
I was pleasantly surprised to see you using a binocular microscope while wearing spectacles. I cannot manage to to that. Do you use special pads on the viewing lenses?
Best RUclipsr 🔥❤️
Hey bro i hope you can do videos on how to test smd. Capacitor, resistor, diode, ic. Using analog multimeter..
whats about resinified complete dry - years old - flu, which you can scratch away (but want to avoid to do it mechanicly?) ? i noticed that your method dont work there... thx for info.
My man! I'm sold, instant sub!
Thats what im talking about! Glad to have you on board =D
Thanks for this! If I don't have a heat gun, can I use a hair dryer?
To clean boards yes, to solder no
Do you have a video that has the very basins, like what the differences in solders are (leaded, unleaded) when to use each….
not sure if its a lot about the heat but I feel it' s more about the air
Gonna go get me some cotton swabs! Much appreciated!
I ripped the battery connector plug the motherboard from my son's ps4 pro when trying to clean it
What do I need to do to remove the leftover crap and get the connector back ready for mounting
I enjoyed the clip you have some well practiced skills
Sorry for the late reply! I appreciate your kind comment, I hope you find what your looking for in my channel =D
Great vid, thanks for sharing!! Quick question; what kind of flux did you use there (no-clean, rosin, RMA or something else)? I've been using no-clean for a long while now, but cleaning (when needed) is a hassle since it requires other types of detergent than IPA and still is kinda tricky to get off the PCB.
Gracias amigo
Thanks for sharing. This video was longer than others that I was looking up but I'm glad I watched it, albeit just the important parts. Question if you see this: what is the purpose of using extra flux in soldering if the solder I use already has flux in the core?
Excellent!
=) I really appreciated this video.
=)
Appreciate your knowledge and technique, Thank you.
Epic!
great - thx!
can I use deoxit? Or nail polish remover? It's hard to find 90% isopropyl due to pandemic. I want to desolder using a flux braid... but want to clean the board and components when I'm done using it
Nice Video
Very very good bro
Thank you so much 😀
Instruction starts at 03:30
Hi, can i use a solvent like petrol or kerosene? Its easier to get at my place.
i used to pour like 2-3ml ISO on the board and than using the cuetip but what i got is a total mess gummy dirty dull gotta try your way
Can’t find the site for the tools. Link doesn’t work
A sort of related question. When you do use the ultrasonic cleaner do you use flux remover in it or straight isopropyl? Can you put potentiometers in it as well?
awesome
Sometimes when I am lazy after cleaning up flux & I see a bridged joint, I just add ISO and then remove my solder. Yup, I use ISO as flux when I am lazy. Hehehe
I just saw this comment and i want to slap you through the phone, your such a troll tony! hahaha
Can we also use little bit of wd40 on qtips without any heat, I've used it once and it does gets the job done pretty much nicely. Also you can also use some ip after that to clear the leftover wd40. So is it a good Idea ? Let me know. Thanks!
every time I use a q-tip on the pcb, it always leave cotton hair strains.
Nice video Justin. Do you wear varifocal glasses? Also are you left handed?
Not Left handed or use Varifocals =)
Can I use something stronger that isopropyl alcohol, like aceton for example (its what I got on hand)? or wil it ruin the board?
and is this flux any good for micro soldering: Weller LW25? (what they got at my loca store)
Honestly, acetone could potentially eat up coatings, I would suggest sticking with ISO for pretty much all flux cleanup. As long as you dont let the flux sit for months it should come right off with iso =)
did I hear you right, about not putting a PCB in the ultrasonic cleaner if it has a microphone? thanks
you can cover the mic with hot glue it will protect it during the ultrasonic bath
@@MisterXS75 ok thank you 🤓
Around 7:45 the flash point of isopropyl alcohol is stated to be much higher than the temperatures used in this video, but I think that this should be the autoignition temperature. Flash point for iso is generally in the 10-20 °C range depending on concentration.
Steve Brown ah! I see, good info,
I’ll double check everything and when I redo this video, I’ll include more info. 💪
What could be used to clean the back of a car instrument cluster that has lead free solder and is bleeding milli amps to ground due to silver migration on the board? thanks
Is there any risk of ESD from the cue-tips? I always think clean up is the point where most people are putting tons of non-ESD safe equipment in contact with boards. Is it an issue?
KIMTECH wipes?
Hello Justin,
Thanks for your input.
Please share one more thing, as you stated 140C. What should be optimum air flow setting through gun?
I don't know about you, but there's still left over gunk between components. You can just brush with alcohol and get the same result.
Greetings, I am an auto tech retired, but it's my job to fix everything. You said your temp was 140. In engineering and diagnostics flows charts, they always give you temperature in "C" and "F". Is this 140 degrees F? As solder melts at 420-450 degrees F, I am sure it take no time to crank up the temp to work. No auto tech want to turn on the compressor while holding the air impact & socket.
Also, I have seen many debates turn into arguments about isopropyl alcohol. Some say say crazy stuff like never use it. Is 75% work for a guy who is a part time Mr Fit It? 99% is a little expensive to have sitting around. Although, in Iowa, Nebraska and nearby, pure 100% ethanol is produced. This is not isopropyl but when aged in chard oak barrels, taste good!
Do you have a sweep frequency ultrasound cleaner w/distilled water or special cleaner.
Sorry to ask so many questions but sometimes it's hard to find someone who knows what works! Best practice works for me, in auto repair or electronics. I had to subscribe & like. My task (Among Many) is a dead short on my 3 year old Dell Inspiron 15. Can't afford new.
Can i use laquer thinner without heat of the blower?
Heat makes the flux thinner allowing it to soak up into the cotton. =)
Hello dear friend, I understand very little English, please type it for me so that I can look it up in Google Translate. Did you use only cotton and hot air or cotton and hot air and thinner?
Cotton cloth, hot air and isopropyl alcohol 😎💪
@@TheArtofRepair thank you bro you are very good
@@TheArtofRepair What is the temperature and air of your heater?
Your new tools website doesn't work !
Do you ship from the USA
No, just Europe atm.
So, i have no heat gun so should i just melt the flux with my iron and use the qtip and rubbing alcool anyway? Also, i heard in another video that leftover flux rosin can end up corroding the circuit, is that true?
Corrosion depends on the brand and composition of the flux. Even a small cheap heat gun from your local hardware store will help, Heat makes the flux gain more viscosity which allows it to be soaked up by the qtip =)
great work please start learn us how to now input and output any iphone ic voltages
Please explain what you want to know a little better and I will try to make a video =)
What u talking about, ultrasonic radiation? Flux seed oil ?
lol
I thought heat is not good for the motherboard circuit?
at consistent high levels yes, but low levels, not so much. =)
hey justin
You are not worried that Isopropylalcohol is classified as carcinogenic?
Just based on what information and studies are available, it does not look to be that IsoAlch is carcinogenic, but then again, people use to wash their hands with gasoline till they learned later on of the effects it can have. Proper safety is always practiced at the Art of Repair, nonpermeable gloves plus proper fume extraction are in use during work =). Thank you for bringing up chemical safety though, as it is still an important topic! I hope to see you in the comments section again soon!
find the exposure setting on your camera and use it.
Unfortunately sometimes my webcam just has a mind of its own. Truly a sad thing. Feels like with identical lighting, from video to video it will just do whatever it feels like even after tons of adjustment, but your right, it makes me want to scream sometimes XD
This was great, thanks, been searching for "how do you fix a burnt soldering pad?" for a while now, and I think this has helped. Have you heard people talk about - Giyathan Bewildering Gratification - (do a search on google ) ? It is a smashing one of a kind product for discovering how to repair your electronic items like a wizard without the headache. Ive heard some super things about it and my friend got great results with it.
140c or 140F? Lol
😢
Why the sad face :(
Get the brake cleaner out.
no
Yes
"Microsoldering 101 | Perfect Flux Cleanup as you Work | Squeaky Clean PCBs" or how to make a three minute viedo into a 10 minute video
You need over 9 minutes to clean a PCB? To much taking....