00:00If you've ever tried to reb all a BGA chip or fix a cold solder joint with cheap, gritty flux,
00:04you already know the pain, the solder just won't flow, and you end up frying the pad.
00:09So I went digging through the deals and rounded up the top 5 RMA-223 solder paste fluxes that
00:14actually work, at prices that won't make you wince. Let's get into it.
00:20First up is the classic 10 cubic centimeters RMA-223 flux grease, running about $26.75.
00:27Now, that's the premium end of this list, but here's the thing,
00:31it's got a perfect 5-star rating with nearly 4,700 sold, and that basically never happens.
00:36What you're paying for is consistency. It stays tacky exactly as long as you need it to,
00:42doesn't bubble up and spit when your hot air hits it, and it plays nice with everything,
00:46computer chips, phone boards, LEDs, BGA, SMD, PGA. If you repair boards for a living and a ruined
00:53mainboard costs you real money, this is the one you buy and stop thinking about.
00:58Now if you're on the complete opposite end of the budget, the single-pack RMA-223 rosin needle
01:03tube is sitting at $2.63. Two bucks. And it's still pulling a 4.7 rating across 4,700 sales.
01:13It's a no-pleen, environmentally-friendly formula, so you're not scrubbing your board down with
01:18isopropyl afterward unless you just want it to look pretty. The needle tube is the real win here,
01:24you get precise little dots exactly where you want them instead of smearing paste across half
01:28the PCB. For hobbyists, this is a no-brainer impulse buy. Then there's the 1-to-50-piece
01:3510 cubic centimeters RMA-223 at 229, and this is the smart pick if you go through flux regularly.
01:42You can grab a single tube to test it, or buy a full 50-pack and basically never think about
01:47flux
01:47again. 4.8 stars, 4,700 sold, so the quality's clearly holding up across the batches. Honestly,
01:56for anyone running a repair bench, a small shop, or a school electronics lab, bulk buying at this price
02:01is where the rail savings live. Flux doesn't go bad sitting in a drawer.
02:07Number 4 is the 20- or 40-gram solder paste flux grease with the needle applicator, around 23-16.
02:13The big draw here is quantity 20- to 40 grams is a serious amount of flux compared to a
02:1910-cubic
02:19centimeters syringe, so this is for people doing volume work. It's got a 4.9 rating, which is
02:25outstanding, and it comes with the needle so you still get that fine control on tight pitch components.
02:31If you're doing repeated BGA reflows or reworking hole boards, running out of flux mid-job is the
02:36worst, and this one just doesn't let that happen. And rounding it out at 28-53 is the RMA-223
02:4310-cubic
02:44centimeters BGA tin solder paste in the needle tip syringe. This is the tin-loaded version,
02:49and that's a genuinely different tool, it's not just flux, it's paste with solder in it,
02:54so you can tin pads and place small components without touching a wire of solder.
02:584.9 stars. No clean formula, syringe delivery, great for phone repair, SMD, PGA, all of it.
03:07If you do a lot of micro-soldering where a solder wire is just too clumsy, this one earns its
03:12price
03:12fast. All the links are down in the description, and prices on these do shift around, so it's worth
03:18checking before they jump.
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