Best Solder Fluxes Pastes 2025

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Last Updated - 09/06/2025

Best Choice

01

prowithlin

prowithlin Flux Soldering, 60 ml, Pack of 2 Soldering Paste with 2 Needles, 1 Pusher & 1 Syringe, 60 g No Clean Solder with Flux for BGA/IC/CPU/PCB/SMD

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9.7

Exceptional

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Main highlights

Versatile Applications Ideal for electronic repairs, PCB assembly and DIY projects. Reliable performance of the flux for professionals and hobbyists
STORAGE & DURABILITY Store the flux in a cool, dry place. 2 year shelf life. After use, close again to maintain the quality of the solder with flux
No-clean, non-corrosive: rosin based, acid-free, lead-free, non-conductive solder grease. Good wetting, easy to solder, less smoke and no unpleasant smell. Minimal residue, no cleaning required
High capacity and accessories: pack of 2 30 g flux soldering, total 60 g/2.12 oz. Contains 2 needles, 1 pusher and 1 syringe. Easy to use and no waste thanks to airtight packaging. Perfect for precise application of solder flux
Easy to use: clean the surface of the object before soldering, apply this solder paste to copper, iron, tin and other metals at the soldering point, and then use the soldering iron to melt the solder with flux at the solder joint
EXCELLENT CUSTOMER SERVICE If you have any questions or problems about our solder paste flux, please feel free to send the seller a message through Amazon. We will provide you with a satisfactory solution

14,99 €
02

BEEYUIHF

BEEYUIHF No Clean Soldering Paste Flux, BGA Soldering Flux Paste, Electronic Flux Pastes for BGA/IC/CPU/PCB/SMD Solder (5.15oz/146g)

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9.6

Exceptional

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Main highlights

Soldering paste flux, made from no acid, lead-free, no-clean, non-resistive, non-conductive, non-corrosive for electronic components, ideal for soldering ICs and BGAs, strong deoxidation capacity for wires, ideal for wiring.
Industrial grade solder flux advantage: lead-free, no-clean, halogen-free, acid-free, no corrosion, high intensity of connection, good immersion, good insulation, very little residue, easy to tin, helps solder firmly, makes soldering more liquid, slightly yellow soldering flux paste.
BEEYUIHF Soldering flux paste net weight: (3.52oz/100g); gross weight: (5.15oz/146g)
Application of soldering flux paste: mobile phone repair, computer and digital service industry, high-precision SMT soldering of circuit boards, BGA welding process, maintenance drag soldering, BGA-plant tinning, maintenance desoldering, soldering electronic components, maintenance of mobile phones, maintenance of mobile phones, maintenance of mobile phones, maintenance of mobile phones, maintenance of mobile phones, maintenance of mobile phones, LED lighting, household appliance maintenance, etc.
About our #9530 Solder Flux Paste: No Clean Flux Paste.

12,99 €
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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9.5

Excellent

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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.

3,99 €
04

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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9.4

Excellent

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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.

4,49 €
Value for Money

05

BEEYUIHF

BEEYUIHF No-Clean Flux Soldering, Solder Paste Flux, SMD Electronic Solder Flux Solder Paste, Solder Grease Flux Pastes for BGA Reflow, CPU/PCB/SMD/IC Solder (10 ml Syringes) #8403

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10% Off
9.3

Excellent

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Main highlights

The most prominent role of # 8403 flux is to remove oxidation, soldering flux is a kind of chemical substances to promote soldering, have the surface of the soldering material oil to remove oil, remove the oxide layer, increase the role of the soldering surface. Flux paste also has the task of protecting components and preventing reoxidation. Flux is an indispensable auxiliary material when soldering and repairing to achieve better soldering and repair results.
The main function of #8403 solder flux is to reduce the surface tension caused by the contact between the solder and the metal of the pencil, increase the wetting force of the surface and improve the penetration of the organic activator, which is the key role of the flux. Flux paste is fine and white, with very little residue, and can achieve the performance of no clean.
How to use electronic flux: wipe the electronic components and their circuit board clean before soldering, press the right amount of flux on the surface of the components or wire, heat the soldering iron to 200 °C or more, and then the tin will be melted in the solder. After adding flux, it is very easy to put on the tin, and the structure of the solder joint is very full and strong and bright.
BEEYUIHF #8403 is made of no clean, halogen-free, acid-free, non-corrosive flux, white paste, good flowability, moderate viscosity, less residue, less smoke, suitable for mobile phone PCB, BGA and PGA and other SMD ball array solder joints rework and ball patching.
#8403 soldering flux paste product applications: applicable to sensors, wires, motors, fuses, connectors, metal shells, lighting, electronic components, SMT repair, BGA chip ball implantation, etc.

8,99 € 9,99 €(10% Off off)
06

TermoPasty

50ml SMD Flux RMA NO Clean Soldering Flux Flux Flux Liquid For BGA Reflow SMD Application Soldering

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9.2

Excellent

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Main highlights

Flux RF 800 rosin-based flux medium activity with excellent wetting properties. It perfectly moist surfaces made of Cu or PbSn and requires no washing.
Application: machine soldering in professional and consumer electronics wire end tin mixing technology soldering passivated surfaces
50 ml

4,94 €
07

PacuM

High-Quality Soldering Flux Paste for Precision 100 g Flux Paste Soldering Flux Tin Paste Flux No Clean Soldering Paste Grease Used in Mechanical Electronic Components

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9.1

Excellent

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Main highlights

Wide Applications This flux slurry is extremely versatile and the soldering flux is ideal for a variety of soldering tasks, whether repair, prototyping or industrial manufacturing. The flexibility of the solder paste for precision makes it an essential tool for electronics professionals and hobbyists alike.
Promote efficient soldering: the performance of the solder paste is stable and solder paste can effectively prevent tip oxidation. Flux soldering rinse-free is easy to clean, has low residue and has a low volatility. Soldering flux keeps the soldering surface smooth and promotes solder flow. Flux soldering greatly improves the efficiency of the soldering process.
High Adhesion This solder paste has high adhesive strength, the solder flux is very suitable for soldering circuit board, BGA, PGA, SMD and other precision electronic products. Soldering flux wipe the surface of the workpiece before soldering, apply the paste to the solder metal and then melt the tin at the soldering point with a soldering iron.
HIGH QUALITY MATERIALS The flux slurry is made of high quality rosin known for its purity and effectiveness. Solder paste ensures excellent flow and optimal performance in all welding jobs.
CONVENIENT STORAGE OF IRON CONTAINERS Our flux paste comes in sturdy iron containers. Soldering grease not only ensures safe storage, but also for easy handling. Soldering grease. The container protects the flux from external influences and ensures a long service life.

8,99 €
08

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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9.0

Excellent

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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 €
09

ALLECIN

ALLECIN Pack of 3 Flux Soldering No Clean Soldering Flux Lead-Free 10 ml Solder Flux Paste 10CC Rosin Solder Lead Free No Cleaning Flux Paste Solder Paste AEC-558 for LED SMD PCB BGA DIY

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8.7

Very Good

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Main highlights

What You Get: 3 pieces AEC-558-SFP no-clean flux with 3 push rods and 6 dispensing tools. #Humanised packaging, please confirm the data before purchasing.
Function: It has the function of removing oxides from the surface of welding materials, protecting components and preventing re-oxidation, reducing the surface tension of the solder and improving welding performance.
Features & Benefits: Lead-free, halogen-free, acid free, no cleaning required, non-corrosive, good fluidity, low residue.
CONVENIENT & PRACTICAL Push in design for more smooth flow and no waste when soldering. The 10ml packaging minimises waste.
ALLECIN AEC-558-SFP Model 10ml No-Clean Flux de haute qualité - Traditional model for your soldering requirements.

12,99 €
10

AOUZOVLI

Flux Soldering Flux 20 ml, Flux Solder Paste Flux SMD Electronic Solder Flux Solder Paste Grease Flux Paste Solder Grease Flux Pastes for BGA Reflow, CPU/PCB/SMD/IC Solder

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8.6

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

Wide range of applications: whether you work on the assembly line or repair electronic devices at home, you can use this soldering flux. Soldering flux has a wide range of applications and is suitable for cleaning soldering iron tips, mobile phones, BGA-repairs, PC cards and other precision flux soldering at chip level.
Lower melting point: this flux soldering has a lower melting point and is suitable for use in areas that are not resistant to high temperatures. This can effectively protect your electronic components and avoid component damage that occurs when using flux for high temperature welding.
High-quality material, remarkable welding effect: this solder paste flux is made of high-quality material with remarkable welding effect and high welding speed. In this way, you can do more welding work in a short time with SMD electronics solder flux solder paste, improve your work efficiency and save valuable time.
Extensive product list: Our product list includes 2 sets of flux soldering, including 2 push rods and 4 needles, so you always have a replacement at hand. No matter when and where you want, you can easily use flux for welding work. Solder paste flux has a strong oxidation removal effect on substrates and wires made of gold-copper alloys.
Easy to use and reliable: this SMD electronic solder flux solder paste is easy to use and reliable, making it the ideal choice for your welding requirements. It is lead and halogen free and meets environmental protection and health standards, so you can use Soldering Flux with peace of mind without worrying about the impact on the environment and health.

7,59 €