00:00Soldering Jobs Ruined by Bad Joints?
00:02Today test classic rosin flux against modern NC559ASM.
00:08Dug up best deals online for both types to crown winner.
00:12First up, classic solder paste rosin flux in 10G tub.
00:16Costs $4.09.
00:19High lead-free compatibility cleans tip instantly and spreads heat fast across thick pads.
00:244,600 sales prove it reliable workhorse for basic wire splicing and through-hole boards.
00:31Second, exact same rosin flux formula, cheaper package at $3.62.
00:37Hit same 4.7-star rating with over 4,500 sold.
00:42Best raw value for hobbyists needing solid oxide removal without spending extra dime on packaging.
00:47Third contender moves to synthetic side, NC559ASM and 10ml syringe for $4.39.
00:56Best feature is no-clean formula with 4.8 rating.
01:00Syringe needle targets small SMD pads directly.
01:04Zero sticky residue left behind, saves board scrub time.
01:08Fourth is KEK Original 559 Needle Tube Pasted $4.71.
01:14Specializes in drag soldering and fine-pitch chip rework.
01:18Flow consistency prevents solder bridges between tiny IC pins, earning 4.8 stars from 3,600 happy tech benches.
01:27Fifth is Premium NC559ASM RMA218 Tub running $7.26.
01:33Highest 4.9 rating for reason, top-tier electrical insulation built for micro-soldering smartphone logic boards.
01:40Zero conductivity risks around sensitive CPU dies, worth premium cash for phone repair.
01:47All links sitting below in description.
01:50Drop like if comparison helped, hit subscribe for more bench tests.
01:54See next round.
