BEST FLUX for SOLDERING - Budget Microsoldering

AMTECH has dominated the flux market - and for good reason. Some new product launches have changed EVERYTHING. See which flux has now claimed the title for greatest flux, and a new flux which I'd like to add to the table.

These recommendations have been made after using each product for over half a year, and professionally on customer motherboards. I was not paid in any way to make any video, and all products were purchased full price.

*there is an updated flux which is improved over the citriflow on this website

Channels & Experts Featured:

MUSIC USED:

Odd Chap | Polaroid

Nico Staf | Brooklyn & The Bridge

Wilfre's Wasteland 2 | Draft to Life

Grateful Kings | Burlesque Heartache

The majority of comments on my last video, the BEST Hot Air Station for Budget Microsoldering, were on the flux I used. After a couple months, THE FLUX WENT OUT OF STOCK. So, I of course, was freaking out. I tried all sorts of fluxes, and found the Ugain to be a fitting replacement. Later, TCRS Circuit launched Citriflow and got me curious enough to try both the PRO version (much more liquid) and regular (thicker).

Thank you for your time, and if your still reading this long description, I don't know where you are in microsoldering, but I do know there's a threshhold where you can get so good in fixing phones that if YOU can't fix it, NO ONE can - and if that's where you're striving to be, I wish you all the best. Also, your really attractive lol.

[shogoonn]

The reason for the flux not stopping after the plunger is released is the air inside the syringe trapped above the flux. By pressing the plunger you compress the air and that's what's pushing the liquid out. You release the pressure on the plunger, and the air inside decompresses, but not completely, as it can't move the plunger any more to an equilibrium due to friction. The remaining air pressure pushes the liquid out until the pressure equalizes. The same thing happens with CA glue, ointments and other stuff in metal tubes - the remaining pressure is not enough to spring the metal back to equalize the pressure.
By drawing the plunger back you actually introduce more air into the syringe making the problem even worse.
What you should do instead is to store the tube vertically for some time, until all the liquid migrates to the bottom (towards the plunger), and then push the plunger until all the air (with some remaining liquid) is gone and the liquid starts to come out.
In some cases there could be a stable dispersion of air formed in the liquid itself. That could be dealt with using some heat (to decrease the viscosity and release the bubbles) or with a vacuum pump which will expand the bubbles and increase theirs buoyancy.

[skeetabomb]

Here in down under, we do not 'sodder', we 'solder' :P

[pixel]

For our repair shop, there are different things which count:
- Non-conductivity
- Viscosity (especially with heat)
- easy cleaning
- health risks

So your test might not be representative for all people.

[EVN]

After 1 year Finally! i thought you're uhm . . anyways, smooth video, definitely true about the UGain Flux, been my day to day flux 👌🏻

[samdeen]

Bro you need to make more videos!! Looking forward on Budget vs Hakko Weller comparisons

[konnilol]

Nice comparison video. Though I personally just use whatever I can get for cheap at my local brick and mortar store. I mostly do just simple repairs for friends and family and the cheap stuff is even enough for the bit of microsoldering I do...

[kiwichess]

TCRS is the best of the best. The sponsor is TCRS... 🤣🤣🤣🤣

[xaviermacaluso]

hey so im looking to replace the 5g antenna on my iphone 13 pro and the youtube video says to use flux is it a certain kind of flux i need to use or no because i have oatey no.95 lead free tinning flux is this right or no?

[HarryKwastaken]

In one of the sequences, you'll see the process of soldering an apple watch flex cable!

[chunkityik]

You just missed something really import - the ease of cleaning the residue

[OhQueBacan]

You definitely need to make more videos

[pcbwayluz]

Great job, Harry. Also your editing, made the video so engaging to watch. Were wondering if we could do something fun together in the future. Any chance can us reach u out:D

[SianaGearz]

You don't just buy weird tins of brown hard cake from Poland for 1€ and dissolve them in isopropyl alcohol? Got it from Sorin at "Electronics Repair School". It does have some advantages, but overall i can't decide whether i love or hate it, certainly both sort of.

Also i never understood why Amtech, it's not like other big ones like MG and Kester and Chipquick don't make decent flux? And then half the people end up buying fake Amtech which is just... well the outcome predictably varies.