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AliExpress No-Clean Liquid Soldering Flux for Stainless Steel
AliExpress No-Clean Liquid Soldering Flux for Stainless Steel, view 2AliExpress No-Clean Liquid Soldering Flux for Stainless Steel, view 3AliExpress No-Clean Liquid Soldering Flux for Stainless Steel, view 4AliExpress No-Clean Liquid Soldering Flux for Stainless Steel, view 5AliExpress No-Clean Liquid Soldering Flux for Stainless Steel, view 6
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No-Clean Liquid Soldering Flux for Stainless Steel

$3.05$6.55Save 53%

In stock at aliexpress.com

A liquid soldering flux marketed for stainless steel, no-clean, for joining nickel, copper and iron, and popular with people repairing PCBs or building 18650 battery packs. It costs $3.05. The seller shows over 3,500 orders and 93.8% positive feedback on AliExpress.

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Price from AliExpress at our last check (refreshed weekly). The final price, shipping and any import charges show at AliExpress checkout. We may earn a commission if you buy.

Highlights

  • Liquid flux for stainless steel
  • No-clean formula
  • Suited to nickel, copper and iron
  • 18650 battery and PCB repair use

Best for

DIYers who solder nickel strips and stainless parts.

Things to consider

  • Bottle size isn't stated.
  • Soldering directly to lithium cells carries fire risk and can damage them.
  • Active fluxes can corrode if left on, even when the label says no-clean.

Key specs

Price$3.05
TypeLiquid flux
UseNickel, copper, iron, 18650

Our take

A useful flux for stainless parts. Be careful with batteries.

No-Clean Liquid Soldering Flux for Stainless Steel at a glance

BrandAliExpress
Price$3.05 (was $6.55)
TypeWelding Equipment & Supplies
AvailabilityIn stock at aliexpress.com
ReturnsEligible items can be returned within 90 days of payment, with the first return on each…

Price check

At $3.05, the No-Clean Liquid Soldering Flux is mid-range for AliExpress, whose 51,717 listed products run $1 to $1,229.

It's currently 53% below its listed price of $6.55. Sale prices can end without notice, so check the live price before you order.

Similar items from other brands we track run $3.99 to $145.

Buying from AliExpress

AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay.

Shipping
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Returns
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
Warranty
AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Payment
US shoppers can pay by Visa, Mastercard, American Express or Discover, PayPal, Apple Pay and Google Pay. Instalment options such as Klarna and PayPal Pay Later appear on some orders, and availability varies.
International
AliExpress sells to shoppers worldwide. For US orders, import duties on low-value parcels have applied since the duty-free exemption ended in 2025, and state sales tax is added at checkout.

Read our full AliExpress review and shop all products →

Frequently asked questions

Can I use it on stainless steel?
That is what it is sold for, since stainless oxide resists plain rosin flux. Wipe the residue off with isopropyl alcohol after soldering to stop it corroding the joint.
Is it safe for lithium cells?
Soldering directly onto cells is risky because heat can damage them, so spot welding is safer. If you do solder, work quickly and keep the iron on the tab, not the cell.
How long does shipping to the US take?
Flux is a liquid, so some carriers handle it more slowly. Expect roughly one to three weeks on standard shipping, and less with a Choice or US-warehouse listing. The order is tracked, and Buyer Protection covers a lost parcel. Duties might be added at checkout.
Does it need cleaning?
The listing says no-clean, but stainless-grade fluxes are usually more aggressive than rosin. Cleaning after soldering with isopropyl alcohol is the cautious route, especially on battery tabs.
Is the No-Clean Liquid Soldering Flux on sale?
Yes. AliExpress lists it at $3.05, down from $6.55 (53% off). Sale prices change, so confirm the live price on aliexpress.com.
Is there a discount on the No-Clean Liquid Soldering Flux?
AliExpress publishes these ways to save: Coins in the app. AliExpress sets the terms, which can change; our AliExpress coupons page has the details.
What is AliExpress's return policy?
Eligible items can be returned within 90 days of payment, with the first return on each order free, according to AliExpress's 2024 US announcement. Return terms vary by seller and item, so check the product page. Custom, perishable and hygiene items are generally excluded.
How long does AliExpress take to ship?
AliExpress's 2024 US guarantee listed Choice orders at 5 to 12 days and standard orders at 8 to 14 days, but real-world standard shipping from China often runs longer. Items marked Ship from United States come from local stock. Free shipping on Choice orders depends on a minimum order shown at checkout.
Does the No-Clean Liquid Soldering Flux come with a warranty?
AliExpress's published warranty terms: AliExpress does not publish a marketplace-wide product warranty. Coverage depends on the individual seller, and Buyer Protection covers non-delivery, damage and not-as-described claims instead.
Where can I buy the No-Clean Liquid Soldering Flux?
The No-Clean Liquid Soldering Flux is sold directly by AliExpress on aliexpress.com. The Shop now button on this page goes straight to the product there.
Is the No-Clean Liquid Soldering Flux in stock?
Yes. AliExpress lists it as in stock on aliexpress.com as of our latest check. Stock and prices refresh throughout the day.
Is AliExpress a legit store?
AliExpress is a legitimate marketplace that is worth using for cheap, low-risk things like cables, tools, cleaning supplies and small home items, as long as you can wait and you buy from well-rated sellers. Skip it for anything safety-critical, brand-name or urgent. Check the seller's feedback score, the delivery estimate and the import-charge line at checkout before you pay. Our full AliExpress review covers shipping, returns and what to check before ordering.

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