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Re: DIY Flux Paste applicator gun.
flux paste is for plumbing,
liquid flux comes with a brush or in a spray can usually.
(not including those tiny pens) -
Re: DIY Flux Paste applicator gun.
It can also come in a little syringe (in a liquid soap like consistency) like the included flux with Chip Quik does smells like Honeysuckle when it's heated up makes me sick
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Last edited by Krankshaft; 07-31-2010, 02:35 PM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: DIY Flux Paste applicator gun.
>>flux paste is for plumbing...<<
Not true.
http://www.mgchemicals.com/products/8341.html
$10.25 - circuitspecialists.com
$9.35 - mouser.com
$10.66 - digikey.com (must buy 10)
$10.45 - alliedelec.com
$8.78 - mainelectronics.comveritas odium paritComment
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Re: DIY Flux Paste applicator gun.
Yeah, but that's no-clean flux (which isn't really no-clean, you still have to clean up after it). Don't use it with flux core solder.
Solder used to just come in a liquid, then in pens. Sometimes we still just drain the liquid out of the pens in order to use it as we want to do.Comment
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Re: DIY Flux Paste applicator gun.
Agree. But the term "no-clean" means you don't ~have to~ clean up after it. It won't have any detrimental effects to the circuit board or components. Of course, I always have cleaned up after using it. Cans of flux remover have always been a staple for me. Just a clean freak I guess.
I use it with flux core (rosin core) all the time.
>>Solder used to just come in a liquid...<<
Do you mean solder paste? Else, that's one hot pen!!
veritas odium paritComment
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Re: DIY Flux Paste applicator gun.
Ack! I meant flux used to come just as liquid.Agree. But the term "no-clean" means you don't ~have to~ clean up after it. It won't have any detrimental effects to the circuit board or components. Of course, I always have cleaned up after using it. Cans of flux remover have always been a staple for me. Just a clean freak I guess.
I use it with flux core (rosin core) all the time.
>>Solder used to just come in a liquid...<<
Do you mean solder paste? Else, that's one hot pen!!
The no-clean I've heard is more corrosive than the regular stuff. But that was just tech to tech so it may have just been rumor.
Quick Google, and these guys are obviously biased in order to sell product, but here: http://www.cirris.com/testing/guidel...lean-flux.htmlLast edited by TinSoldier; 07-31-2010, 08:31 PM.Comment
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Re: DIY Flux Paste applicator gun.
Yes. There they are speaking of the liquid form causing problems. They recommend using paste flux or rosin core solder. Any flux used to excess will cause problems in a connector.
I've not seen a problem in 40 years using it for wiring or circuit boards. Heck, I've used regular Nokorode for everything at one time or another, including plumbing and a leaky heater core in my '69 Chevelle 6-banger. "Fill it up and a quart of oil please..."
veritas odium paritComment
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Re: DIY Flux Paste applicator gun.
Back to the OP. My point here is you don't need to get fancy to apply flux. While the idea is neat for a DIY project, the syringe by itself is just ducky.
Toastveritas odium paritComment
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Re: DIY Flux Paste applicator gun.
Agree. The less flux the better if using rosin core (which is most solders).
You get the best results by tinning your leads and pads, and cleaning your solder before using it.
The only time I use flux really is if I have a worn solder tip and cannot make a good thermal contact without it, or without adding solder directly to the tip (which I was taught is a no-no but which works regardless).Comment
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Re: DIY Flux Paste applicator gun.
I always use flux, never rosin core solder.Comment
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Re: DIY Flux Paste applicator gun.
On the no clean flux topic stay away from it.
Once when reordering solder I accidentally ordered it with the no clean flux.
From the moment I started using it my joints were crappy and the solder just seemed to not flow properly.
Plus the flux residue was clear instead of gold which gave it away that I ordered from wrong stuff.
The Kester rosin core solder I use says the flux is mild enough to be left on the board so removal is optional.
Nowadays if I'm photographing it I usually hit it with an aerosol flux remover and dab up the loosened flux and the remover chemical with a paper towel. The board looks much better in pics that way because you don't see that reflective flux in the flash.Last edited by Krankshaft; 08-01-2010, 07:02 AM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: DIY Flux Paste applicator gun.
Both the MG Chemicals and ChipQuik no-clean fluxes have never caused me any difficulty.
I wonder what type/brand you got?veritas odium paritComment
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Re: DIY Flux Paste applicator gun.
I'm talking about solder with no clean inside.
I believe it was Kester 245 with the no clean flux.
I usually only externally flux when soldering SMD devices where I have to transfer solder from the tip to the trace.Last edited by Krankshaft; 08-01-2010, 02:09 PM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: DIY Flux Paste applicator gun.
you should only need flux for smd re-heat.
as for flux in solder, it's not just rosin/rosin-free.
it comes in many percentages.
the same goes for halide.
you want a bit or you cant solder to brass.
my solder is no-clean core.
and no-clean flux can be left in place - that's why it's called no-clean.
other types include aqueus, mild & active.
aqueus is water soluable.
mild & active are acidic and *will* slowly eat stuff if left on the board.
all 3 types need to be cleaned off after your done.
aqueus is damned toxic too - great in a factory for automated soldering, but i wouldnt advise it's use by hand!
this is what i use:
https://cdn.badcaps-static.com/pdfs/...2deb3cd715.pdf
(type 505)Last edited by stj; 08-01-2010, 03:51 PM.Comment
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Re: DIY Flux Paste applicator gun.
I have to disagree on removal I use Kester 44 series solder with RA flux here's the datasheet.
"Kester 44 possesses excellent fluxing ability, the flux residue is non-corrosive and non-conductive under normal
conditions of use."
"This mild property of the residue permits leaving the flux on the assembly for many applications."Last edited by Krankshaft; 08-01-2010, 09:42 PM.Elements of the past and the future combining to make something not quite as good as either.Comment
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Re: DIY Flux Paste applicator gun.
Rosin core and paste - I've never seen either do any damage to boards, traces, components. I've stuff I built when I was a kid, high school, tech school that is still fine. All of them over 30 years now and not a hint of a problem.
Rosin (core) is pine sap.
It's all marketing to get you to buy flux remover and god knows what else.
"It's gonna eat my board! Run away! Run away!"
ahahahahahahahaaaaaa!!
veritas odium paritComment
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This is a guide that I am writing for helping others to replace their MEC1503 EC chip if it breaks (or to get around an inconvenient prompt to the BIOS). This forum has been extremely helpful to me so I would like to contribute to help others. I will tell you right now that this task is very difficult to do. You MUST have experience and tools to do precision micro-soldering, BGA reballing, trace repair, and general laptop repair skills.
There are some specialty tools needed to do this task. The replacement MEC1503 chips can be acquired from Aliexpress. Do not buy the bare chips as... -
Hi. I have Asus X55C laptop from year 2013. It has i3-2328M CPU. I replaced stock thermal paste with high quality thermal paste. Before thermal paste replacement, I measured CPU temperature Around 65-70 degrees Celcius with stock thermal paste. If after the replace thermal paste, I measured CPU temperature around 80-84 degrees Celcius and fan don't stop when system is idle. I replaced the thermal paste several times but still did not change. Where is the problem?
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I 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? -
I know many folks on this forum warn against conductive glue and suggest removing it immediately upon site. I'm here to vouch and say these people know what they are talking about. To be more accurate, the glue isn't intended to be and doesn't actually start out conductive. It gets conductive as it is heated by components that get hot. The glue starts out to be a light tan color but as it is exposed to heat, it gets darker and darker until it is a dark brown. I have found that it becomes conductive at the point that it reaches a light brown color on darker.
Here is an experience I... -
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
- Range of activity to deal with different component solderability
- Halide free
- Suitable for dispensing
- Compatible with solder coatings and/or No Clean flux cored solder wire product range
Both products are supplied in syringes or cartridges for application by dispensing....10-07-2024, 06:02 AM
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