Best Fluxes 2026

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Last Updated - 27.03.2026

Best Choice

01

MG Chemicals

MG Chemicals 8341 No Clean Flux Paste, 10 ml Pneumatic Dispenser (Complete with Plunger & Dispensing Tip)

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9.9

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Thixotropic paste; RoHS compliant
Suitable for lead-free and leaded soldering systems.
Instant wetting; leaves shiny solder joints
Excellent fluidity
Can be applied by dispensers, brushes, cotton swabs or diving
After soldering, the rosin residue is non-corrosive, non-conductive, moisture resistant and fungal resistant

15,00 €
02

BEEYUIHF

BEEYUIHF Soldering Paste Flux, 30 ml Lead-Free Syringe Solder Flux Paste, No Clean Rosin Soldering Flux for SMD BGA LED PCB Electronics Soldering (1.62oz/46g)

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9.8

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

The 30 ml syringe design is matched with the 5 ml small syringe. Every time the rosin soldering flux is used, only part of the large syringe must be pressed onto the small syringe, which can meet the needs of multiple applications and is easy to store.
Soldering paste flux weight: (1.62 oz/46 g) 30 ml syringe Rosin solder paste flux, made of no acid, lead-free, no clean, solder fluid paste that is not easy to dispose of. BGA flux paste, easy to tin, very little residue.
Lead-free, no-clean, halogen-free, acid-free, non-toxic, no corrosion, high intensity connection, good immersion, good insulation, very little residue, easy to tin, help solder solder, make soldering liquid better, easy to solder yellow flux flux.
Lead-free rosin solder paste, high purity, good helper for repair and welding. Practical syringe dispenser ideal for repairing and repairing surface mount assemblies.
Flux flux soldering area of application: suitable for soldering iron tip cleaning, mobile phone, BGA repair, PC card and other precision electronic chip level flow soldering. Have strong oxide removal effect on gold copper alloy substrate and wire.
BEEYUIHF Rosin soldering flux is also a good helper for soldering and repairing.

9,99 €
03

LINAERSHAO

1 x 10 g flux paste, solder grease flux, solder paste, solder paste, solder paste, for mechanics, metal, tin, telephone, PC cards, components

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9.7

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive a box of 10 g solder paste with little residue, good wetting properties, easy soldering, easy soldering and firm soldering.
The flux paste is packed in metal cans and high-quality iron boxes, which are not easy to break.
Solder paste can be used for welding electronic components. It is used for easy and durable welding and has the properties of quick cleaning and good insulation.
It is suitable for welding machines, metres, gold, copper, iron, tin and other metals. It is widely used in welding precision electronics products such as PCB, PGA, SMD, etc.
Before welding, wipe the surface of the item, apply the paste to the copper, iron, tin and other metals to be welded, and then use the soldering iron to melt the tin at the welding point.

4,99 €
Value for Money

04

KELLYSHUN

KELLYSHUN KL-558 Flux Soldering, 10 ml No-Clean Lead-Free Rosin Flux (1 Piece) 2.5 mm / 1.5 m Desoldering Braid (1 Piece), Suitable for Mobile Phone Soldering, BGA, Household Appliance Repairs

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15% Off
9.6

Exceptional

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Suitable for BGA soldering, SMT, household appliances, instruments, mobile phone repairs
Plunger design, even flow, precise control of flux release, reduces solder waste
Lead-free, halogen-free, non-corrosive, no-clean, good wetting, oxidation resistant, RoHS compliant
Highly active flux: easily removes the oxide layer from the soldering surface
Desoldering braid: made of high-purity oxygen-free copper, high thermal conductivity, residue-free, quick and effective when vacuuming excess solder

8,49 € 9,99 €(15% Off off)
05

KELLYSHUN

KELLYSHUN KL-558 Flux Soldering, 10 ml No-Clean Lead-Free Rosin Flux (1 Piece) 2.5 mm / 1.5 m Desoldering Braid (1 Piece), Suitable for Mobile Phone Soldering, BGA, Household Appliance Repairs

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9.5

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Suitable for BGA soldering, SMT, household appliances, instruments, mobile phone repairs
Plunger design, even flow, precise control of flux release, reduces solder waste
Lead-free, halogen-free, non-corrosive, no-clean, good wetting, oxidation resistant, RoHS compliant
Highly active flux: easily removes the oxide layer from the soldering surface
Desoldering braid: made of high-purity oxygen-free copper, high thermal conductivity, residue-free, quick and effective when vacuuming excess solder

9,99 €
06

AOUZOVLI

2 x Flux Soldering 20 ml, SMD Electronic Solder Paste Solder Flux Solder Paste Flux Pastes, for BGA Reflow, CPU/PCB/SMD/IC Solder, with 2 Sliders 4 Needles

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9.4

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

【Wide Applications】The SMD soldering paste is suitable for various applications, including mobile phone repairs, manual surface mounting (SMT), BGA soldering, LED SMT soldering, ribbon cable soldering, capacitor and resistance soldering and much more. Whether simple circuit repairs or complex electronics assemblies, the solder flux delivers stable and reliable soldering results and protects your components and circuit boards.
High-quality materials: the solder flux is based on rosin, environmentally friendly and does not need to be cleaned. Solder paste not only guarantees excellent soldering results, but also speeds up the soldering process significantly and thus saves valuable time. Whether you are a beginner or an experienced technician, you can easily get started and achieve satisfactory results.
Efficient soldering: The soldering flux has a melting point of only 60 °C and is therefore ideal for heat-sensitive circuit boards or electronic components. The low melting point of the soldering paste allows fast melting when soldering, reduces heat damage to sensitive components, protects the circuit board and ensures reliable soldering results.
Easy to use: the flux soldering is very easy to use. Simply remove the cap, insert the needles, remove the back cover and put on the slider - you're ready to go. The precise tip of the flux soldering allows precise application to the soldering points, avoids material waste and unnecessary effort and thus makes it easier for beginners to get started.
Contents of the set: you will receive 2 tubes of flux solder, 2 sliders and 4 needles. The complete set ensures that you always have enough SMD soldering paste for various soldering work at hand. Whether for DIY projects or professional electronics projects, this kit provides you with enough material and accessories so you don't have to worry about consumables.

7,99 €
07

LABUYI

50 g Solder Paste, Solder Grease, Flux Solder Paste, Soldering Flux, Solder Grease Flux, for Gold, Copper, Iron, Tin, Instruments, Mechanics (Net Weight 50 g)

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12% Off
9.3

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

You will receive a box of solder paste with a net weight of 50 g and a neutral pH value of 7 ± 0.3; high-quality iron box packaging, not easily broken, easy to carry.
Wide range of applications, very suitable for repairing mobile phones, computer motherboards, SMT patches, wire soldering, LED patches, audio circuit boards, BGA tin planting, household appliance repair, etc.
Less residue, good tin wetting, easy to solder, less smoke, no irritating smell.
Clean the surface of the item before welding, apply this paste to copper, iron, tin and other metals at the welding point and then melt the tin at the welding point with a soldering iron.
Butter ointment, contains rosin resin, non-toxic, lead-free, safe and reliable, good insulation; For gold copper alloy substrates, the electric soldering iron tip has an antioxidant effect, semi-solid is not easy to deflate.

5,69 € 6,49 €(12% Off off)
08

BEEYUIHF

BEEYUIHF Stainless Steel Flux Paste Soldering, 30 ml Multifunctional Metal Soldering Paste Flux for Battery, Nickel, Copper, Nickel, Galvanized Sheet, Solder Flux Paste #4910

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40% Off
9.2

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Soldering procedure: wipe the area to be soldered clean, apply the flux to the surface, adjust the temperature of the soldering iron and start soldering repair. This multifunctional flux can be soldered quickly.
Soldering iron can adjust the temperature range of 250℃-320℃/482°F-608°F, the temperature can be adjusted according to the metal to be soldered.
Metal flux paste is suitable for a variety of metal products, such as: toy models, battery wires, watches and instruments, soldering copper wire, repair billboards, iron barrels, stainless steel products, garden fence, metal doors and windows and other types of household goods soldering maintenance.
#4910 Solder Flux Paste suitable for soldering metal: stainless steel, battery, iron, nickel, copper, iron, galvanized sheet metal other various metal products. Note: can not weld aluminum or aluminum alloys.

5,99 € 9,99 €(40% Off off)
09

flintronic

Flintronic Solder Paste 10 g, No-Clean Lead-Free Solder Flux Tin Paste, Environmentally Friendly Solder Solder Paste, Solder Grease Tin Soldering Set for Mechanics, Metal, Tin, Telephone, PC Cards,

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15% Off
9.1

Excellent

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Scope of application: suitable for welding instruments, meters, gold, copper, iron, tin and other metals, very suitable for welding circuit boards, BGA, PGA, SMD, SMT and other electronic precision products.
Good welding performance: the flux has excellent wetting properties, good weldability, good insulation, less residue after welding and the welding surface is bright and smooth. Rosin leaves a protective layer on the welding spot to prevent corrosion.
Environmentally friendly material: flux is a buttery ointment, the main ingredient is rosin, neutral PH7±0.3, non-toxic, lead-free, acid-free and non-corrosive. During the welding process, there are no harmful substances or pungent odours, which is environmentally friendly and health-promoting.
Easy to use: wipe the soldering surface clean before soldering and apply solder paste to copper, iron, tin and other metals that need to be soldered. You can apply it by spot coating, brush coating, cotton swab coating or dipping and then apply with a soldering iron. The tin at the solder point melts.
Can and portable: the total capacity of the rosin flux is 10 g. Contains enough for your daily welding needs and is durable. Packed in small tin cans, not easy to damage and easy to carry.

4,24 € 4,99 €(15% Off off)
10

Makerfire

50g Tip Tinner, Solder Flux Tin Paste, Solder Wick, No Clean Formulation (Lead Free)

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8.9

Very Good

Our rankings are cleverly generated from the algorithmic analysis of thousands of customer reviews about products, brands, merchant’s customer service level, popularity, trends and more. The rankings reflect our opinion and should be a good starting point for shopping.

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Main highlights

Soldering flux, cleans and prevents oxidation of the tip
Neutral PH 7 ~ 0.3; gross weight: 50 g
Increases the efficiency of the soldering process
Facilitates solder flow
Allows solder to form strong, long lasting mechanical and electrical bonds

6,99 €