// FINDER

Three questions and you know what to buy.

A quiz, a cheat sheet, flux differences and solder diameters — all on one page.

// QUICK FINDER

Pick your flux and solder in 20 seconds

Tell us what you solder and with what, and Flusenko will suggest what to take. No upselling.

1. What are you soldering?

2. What are you using?

What you solder	Flux	Solder
BGA, reballing	RMA-223 — tacky, holds the balls	0.8 mm
Small SMD parts	NC-559 — no-clean, less smoke	0.8 mm
Wires and connectors	the flux inside the solder is enough	1.0 mm flux-cored
Learning to solder	flux paste with a plunger	the “First solder” kit — everything matches

Tackier and more active. Its strength is holding solder balls on the pads while the hot air heats them. Best washed off afterwards.

No-clean: needs no washing and smokes less. More convenient for everyday work with small components.

Boards, wires, connectors. Anything thicker than 1.0 mm is hardly ever needed in electronics repair.

When the pitch is fine and you need precise amounts of tin: SMD, phones, dense boards.

Master’s kits — items for a specific job, into the cart in one click.