Re: Does flux expire ?? Flux discussion.
Oh yes, i have watched that one more time than I can say. Lol I wish more people knew of the video because "I can't believe I do this!" desparately needs to be a meme. Haha
Does flux expire ?? Flux discussion.
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Re: Does flux expire ?? Flux discussion.
go watch his video with the electric water heater and pack of salt!!!!
https://www.youtube.com/watch?v=SB62AfXLEHY
youtube is fucking with this video!
The very same principle is applied (without salt) on these electric hot water bags and sold in every chinese local shop!!!!
The only difference (???) being it's water tight in a rubber enclosure.
They even stick the "CE" approval labelLeave a comment:
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Re: Does flux expire ?? Flux discussion.
go watch his video with the electric water heater and pack of salt!!!!
https://www.youtube.com/watch?v=SB62AfXLEHY
youtube is fucking with this video!Leave a comment:
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Re: Does flux expire ?? Flux discussion.
Originally posted by msbettyhuntWhich one do you find better?Leave a comment:
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Re: Does flux expire ?? Flux discussion.
go watch his video with the electric water heater and pack of salt!!!!
https://www.youtube.com/watch?v=SB62AfXLEHY
youtube is fucking with this video!Last edited by stj; 05-23-2019, 09:40 AM.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
"And Rosiiin.. there is never enough of rosiiiin..."Last edited by Retro-Hipster; 05-23-2019, 08:40 AM.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
I think the translucent (and yellowish/orange) ones should be mostly rosin, the opaque ones have at least some triglycerides in it. If it's both, maybe it's both...Leave a comment:
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Re: Does flux expire ?? Flux discussion.
but how would you clean it off??
that's important to keep in mind.
there is some relativly good flux from poland (thermopasty), but it ignores IPA!!
luckily i discovered it disolves in white spirit - which is handy ecause that stuff is cheaper than beer - about €2 for 3Liters
The hobbyist can just leave the board outside an ant's nest for a week.
But yeah, some flux is a bit of a swine to clean off.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
And yes, isopropil alcohol is used in liquid fluxes. You can pound those rosin chunks into tiny granules and mix them with isopropyl alcohol (i forget the ratio now, the video below says between 20% and 80% something of weight is rosin, rest is alcohol) and leave the bottle closed for a day or so to have the contents mix well.Optionally shake from time to time.
Also optionally you can add a tiny amount of glycerin, less than 1% by weight, basically a drop or so in a 100ml bottle.
See https://youtu.be/iv_2ULCmA28
[rosin + isopropyl alcohol, aka isopropanol + glycerine]
Usually around 60% in concentration but it depends on rosin pureness.
For very high temperatures long exposures, e.g.: hot air soldering, adding glycerine is a must.
Also it's easily cleaned with white spirit, which is also cheap.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
but how would you clean it off??
that's important to keep in mind.
there is some relativly good flux from poland (thermopasty), but it ignores IPA!!
luckily i discovered it disolves in white spirit - which is handy ecause that stuff is cheaper than beer - about €2 for 3LitersLeave a comment:
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Re: Does flux expire ?? Flux discussion.
Yeah, it'll smell alright... when the fat starts rotting
Beeswax might be better, actually!Leave a comment:
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Re: Does flux expire ?? Flux discussion.
you could desolve rosin with some ipa or just heat it in a spoon, then mix it into some grease or fat.
be interesting to see how well it works.
specially if you can make the work area smell like bacon - to hell with fume extractors!Leave a comment:
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Re: Does flux expire ?? Flux discussion.
How well does lard work?
I collected a bunch of tallow that I rendered before tossing a piece of food waste that I should try...but I suspect it has little cleaning activity... incidentally, I wonder if this foggy "flux" is animal fat plus a little rosin...Leave a comment:
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Re: Does flux expire ?? Flux discussion.
(A.K.A. the "bee hive flux")Last edited by RJARRRPCGP; 05-21-2019, 06:44 PM.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
You'd need a motor controller wouldn't you? The inductive load of the transformer would be bad for a simple Triac dimmer?Leave a comment:
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Re: Does flux expire ?? Flux discussion.
it wouldnt be too hard to hook one of those guns to a reostat or lamp dimmer, motor speed controller etc.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
It's a bad technique but my father did it the same way... that's how he soldered stuff in the 1990's when I was a kid. Romania being an ex communist country, there was no access to more clever soldering stations, you had no choice but to use those 100w soldering irons.
Problem is he can't help it as long as he uses that soldering iron... it's a 100w iron which uses a shitty "transformer" that's not designed to run for more than 15-30s at a time and the copper wire at the tip heats fast.
So he gets a chunk of rosin on the tip and basically just hopes the copper wire cools enough before it gets burned by the iron tip (if the finger keeps pressing on the trigger)Leave a comment:
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Re: Does flux expire ?? Flux discussion.
"diode gone wild" uses the solid rosin by dipping the iron in it and splashing it onto the joint!!!!Leave a comment:
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Re: Does flux expire ?? Flux discussion.
Dannyx ... i buy my liquid flux from TME.eu, they distribute flux from a Polish company, AG Thermopasty
Flux TK-83Liquid, medium-active flux, type 1.1.2 / 3 A acc. to ISO 9454-1, which is an alcoholic solution of rosin with the addition of organic activators, max. soldering temperature 280ºC. Solids content 24%. Ideally suited for manual tinning to restore solderability.
2$ 50ml : https://www.tme.eu/en/details/flux-t...mopasty/tk-83/
3.75$ 100ml: https://www.tme.eu/en/details/flux-t...mopasty/tk-83/
15$ 500ml : https://www.tme.eu/en/details/flux-t...mopasty/tk-83/
27$ 1000ml : https://www.tme.eu/en/details/flux-t...mopasty/tk-83/
Shipping is around 5-6$... or it used to be... i remember it was around 17 RON when I last ordered from them.
18$ 1 liter https://www.tme.eu/en/details/rf800_...ag-termopasty/
(but this one it's recommended to clean boards after use)
they also sell rosin granules for example, 5$ for 500g bag, 100% rosin... https://www.tme.eu/en/katalog/fluxes_100484/
And yes, isopropil alcohol is used in liquid fluxes. You can pound those rosin chunks into tiny granules and mix them with isopropyl alcohol (i forget the ratio now, the video below says between 20% and 80% something of weight is rosin, rest is alcohol) and leave the bottle closed for a day or so to have the contents mix well.Optionally shake from time to time.
Also optionally you can add a tiny amount of glycerin, less than 1% by weight, basically a drop or so in a 100ml bottle.
See https://youtu.be/iv_2ULCmA28
tip you can also check the MSDS notes for fluxes.
For example here's the MSDS for that TK 83 flux above:
<85% isopropyl alcohol
20-25% rosin
<5% benzoic acid
<5% adipic acidLast edited by mariushm; 05-21-2019, 01:23 PM.Leave a comment:
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Re: Does flux expire ?? Flux discussion.
Isopropanol ? Doesn't evaporate almost instantly and much more so when exposed to heat ? I wouldn't think of it as being the base ingredient for homemade fluxLeave a comment:
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by chth96I want to purchase any good flux remover But "chemistronic flux off es835b" is the most common flux remover in my nation..
Is it good to use chemistronic flux off es835b for flux remover?
Or I have to purchase "3m novec flux remover" which is quite expensive in my nation? -
by evilkittyNow that my de-soldering gun is working i was able to remove this panel i made about a week before i noticed a issue the F segment of digits 2 and 3 would go out, digit 2 would go before digit 3, but would come back after the humidity got down from running the ac (note the weather outside is 30.5 / 74%; panel data is from a BME280)
Temp is on the left humidity is on the right
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The pin out looking down from the top is (note this is common cathode)...-
Channel: General Computer & Tech Discussion
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REWORK FLUXES Multifix 425-01 and 450-01 are tacky fluxes designed for use in a wide range of electronics assembly and rework processes. They represent a range of activities and residue levels to meet different customer requirements.
- No Clean Formulations
- Low residue
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- Halide free
- Suitable for dispensing
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Channel: Common Parts Library - Datasheets
10-07-2024, 06:02 AM -
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by chth96I have tried to bridging tiny broken trace which is shown in the below link,and I found that it is impossible to remove any flux after soldering task.
Is it possible bridging tiny broken trace - Badcaps - Capacitor Search Engine
Because the 0.02 mm copper wire is very very fragile,So It broke itself very easily whenever I tried to rub excess flux with cotton bud.
Is there any way to remove flux with the smallest rubbing or without any rubbing?
Any reply would be appreciated. -
by tony359Hi all,
I was watching a video from NorthWest Repair (The guy there is just doing such incredible repairs) and while he was fixing a bunch of pads on a GPU PCB, I saw this
I've been trying to fix some broken traces on a PS3 CPU for a while but one major issue I'm seeing with my AMTECH flux is that it gets tacky and dark very quickly and then it's a pain to remove and replace.
In the video Tony (I think it's his name) seems to suggest that I am just using the wrong flux?
Any thoughts or ideas?
Full video is here: https://w... - Loading...
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