TOWOT YD-LF-30-NEW Liquid Solder Flux, 30 mL

TOWOT YD-LF-30-NEW is a 30 mL liquid solder flux for electronics, supplied in a fine-tip applicator bottle according to the listing. Its no-clean RMA rosin formula is claimed to suit PCB and other soldering work, while the stated metal compatibility may appeal to repairers working across different alloys.

At a glance

Fine-tip applicator bottle is presented for controlled application during electronics and PCB work.
The listing describes the formula as no-clean and says it leaves non-conductive, non-corrosive residue.
Claimed compatibility covers copper, silver, gold, tin-lead and lead-free alloys.
Listed uses include PCB assembly, appliance repair and wire soldering.

Price

£5.59Save 20%

Reference price: ~~£6.99~~

Price checked: 13 Nov 2026

View offer

Pros and cons

Pros

A liquid format with a fine-tip applicator can suit precise application to small soldering areas.
The listed range of metals and alloys may be useful for repair work involving different materials.
The stated no-clean formulation is intended to avoid a separate residue-cleaning step.

Technical specifications

10 specifications

Identity and size
Brand	TOWOT
Model	YD-LF-30-NEW
Listed size	30
Package dimensions	10.2 x 5 x 1.8 cm; 10 g

Use and formulation
Flux type	Liquid solder flux
Formula	No-Clean RMA Rosin
Listed applications	electronics, PCB assembly, appliances, and wire soldering
Listed compatible metals and alloys	copper, silver, gold, tin-lead, and lead-free alloys

Power and battery
Power configuration	no

Dimensions and installation
Weight listed	10 g

What to know before buying

The listing claims a lead-free formula but also lists compatibility with tin-lead alloys. It describes the product as RMA rosin and no-clean, and claims neutral pH, non-corrosive behaviour, RoHS compliance and minimal residue, but provides no supporting qualification details. Treat these as listing claims and check suitability for the specific work and soldering process.

What’s in the box

Included

Bottle

Who is it for?

A good fit for

Electronics hobbyists and repairers seeking liquid flux for PCB, appliance or wire soldering.
Users who prefer a fine-tip bottle for applying flux to targeted areas.
Soldering work involving the listed copper, silver, gold, tin-lead or lead-free materials.

Less suited to

Buyers who require independently documented chemical or compliance specifications.
Anyone who needs paste flux or a supplied desoldering tool rather than liquid flux in a bottle.

TOWOT YD-LF-30-NEW Liquid Solder Flux, 30 mL · photo 2 — Additional product photo 2

Customer reviews on Amazon

4.4 / 5 · 500 ratings

5 stars72%72%
4 stars16%16%
3 stars6%6%
2 stars1%1%
1 star5%5%

Aggregate ratings are mostly in the five-star category, with a smaller spread across lower ratings. Without written feedback, these figures do not establish what customers liked or disliked, or how the flux performed in practice.

Frequently asked questions

What kind of flux is this?

The listing describes it as liquid, no-clean RMA rosin solder flux in a fine-tip applicator bottle.

What materials does the listing say it works with?

It claims suitability for copper, silver, gold, tin-lead and lead-free alloys. The listing also calls the formula lead-free, so confirm suitability where that distinction matters.

Does the residue need cleaning after soldering?

The manufacturer claims the residue is non-conductive and non-corrosive and says no extra cleaning is needed. The listing does not provide supporting qualification details.