Top 10 Best solder paste for electronics in 2026

Last Updated - 6/11/2026

🏆Best Choice

SRA Soldering Products

SRA Solder 135 Rosin Paste Soldering Flux For Electronics, No Clean Flux Made for Lead and Lead-Free Solder Circuit Boards and Copper Electrical Wire - Safe Clean Residues with No Goopy Mess (2oz Jar)

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•USA Quality Flux - Achieve the soldering results you desire with SRA 135. Our rosin paste flux is impurity free with superior solder flux paste wetting performance. Rosin flux soldering perfected.
•No Goop Solder Flux - Semi-solid solder wax consistency gives you superior control over application. Simply dip copper electric wires or apply electronic rosin flux to PCB and watch the solder flow!
•Electric Solder Flux - Unlike paste flux wax found at the hardware store, SRA 135 acid free electronics soldering flux is the safe and effective choice for electrical and electronic applications.
•Flux Specifications - 135 is a type RA (Rosen Activated) Flux with an Active Temp. Range of 93 – 315°C / 200 – 600°F. This listing is for one 2oz (56.6g) jar of electrical flux paste.
•Flux for soldering DIY electronics projects including Car Audio, Stereo & Hifi, Computers, RC Vehicles, Drones / FPV, Musical Instruments, Gaming Consoles, Model Railroad, Arduino / Raspberry Pi, etc.

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$8.49

$10.99

-23%

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Romeda

2 Jar Solder Flux, Flux for Soldering, Rosin Soldering Flux Paste for Lead-Free Electronics Soldering and Soldering DIY (1.2oz/35g in a Jar)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•ENOUGHT QUANTITY: The package includes 2 jars of soldering flux. A total of 70 g. Enough quantity for your use.
•NON-CORROSIVE: Rosin is not conductive in dry conditions and has good insulation. Is not corrosive to metal substances such as circuit boards.
•OXIDATION RESISTANCE: Anti-oxidation effect on soldering iron head of gold-copper alloy substrate. Solder flux for semi-solid, not easy to dump.
•STRONG APPLICABILITY: Flux is suitable for welding instruments, gold, copper, tin, iron and other metals. Ideal for electronic welding, repair and rework.
•WHAT YOU GET: Rosin soldering flux paste * 2, our 7*24 friendly customer service for peace of mind.

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$5.99

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Essmetuin

Essmetuin No Clean Soldering Flux Paste(4Pack), Solder Flux For Electronics Soldering, Tin soldering, Lead-Free Rosin Soldering Flux For Circuit Boards and Copper Electrical Wire

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•Lead-Free, Halogen Free, Non-Corrosive, Good Flow Ability
•High Purity Rosin Soldering Flux, Good Helper For Repairing And Soldering
•Product Advantages: Pushing-Type Design Smoother Flowing No Wasting During Welding
•High Activity Rosin Can Help To Remove The Oxide Layer On The Welding Surface Easily
•Suitable For Soldering PCB, SMD, SMT, Handwork, Phone, Home Appliance and Meters Repairing

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$14.95

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wonderway

Wonderway Sn42/Bi58 T4 Lead Free Solder Paste No Clean, 138℃ Melting Point (30g)

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Paste Content: Alloy Tin 42% Bi58, Sloder Flux Content: 10.5%
•Product Parameters: Total Weight: 39g, Net Weight Of Paste: 30g
•Paste Features: No Clean, Strong Viscosity, Bright Welding Point
•Product Advantages: Pushing design for Smoother Flowing, No Waste During Welding
•Applications: Widely Used In Circuit Board, IC, Phone, TV and Other Household Appliances and Industrial Equipment

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$9.99

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wonderway

Wonderway Sn42/Bi58 T4 Lead Free Solder Paste No Clean, 138℃ Melting Point (20g)

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Paste Content: Alloy Tin 42% Bi58% , Sloder Flux Content: 10.5%
•Product Parameters: Total Weight: 29g, Net Weight Of Paste: 20g
•Paste Features: No Clean, Strong Viscosity, Bright Welding Point
•Product Advantages: Pushing design for Smoother Flowing, No Waste During Welding
•Applications: Widely Used In Circuit Board, IC, Phone, TV and Other Household Appliances and Industrial Equipment

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$8.89

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LINAERSHAO

10g Solder Flux, Soldering Flux Paste, No-Clean Solder Grease, Professional Mechanic Welding Repair, For Electronics, Mobile Phone, Home Appliance, Computer Motherboard (0.35oz Jar)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•Packing List: One box of 10g/0.35oz flux paste. The flux paste is yellow in colour and comes in a metal tin.
•Product Features: The flux has excellent wetting properties, weldability, and insulation properties. It leaves minimal residue, produces little smoke, and has no irritating odour.
•Easy to Use: Can be applied by squeezing, brushing, using a cotton swab, or dipping.
•Usage Instructions: Before soldering, clean the surface of the item to be soldered. Apply the solder paste to the metal surfaces (such as copper, iron, or tin) to be soldered, then use a soldering iron to melt the solder at the soldering point. It facilitates smoother solder flow and is a reliable tool for repairs and soldering.
•Application Scenarios: The solder paste is suitable for mobile phone repairs, computer motherboards, home appliance repairs, and more.

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$4.19

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wonderway

Wonderway Sn63/Pb37 T4 Tin Lead Solder Paste No Clean, 183℃ Melting Point (30g)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•Paste Content: Alloy Tin 63% Pb 37%, Sloder Flux Content: 10.5%.
•Product Parameters: Total Weight: 39g, Net Weight Of Paste: 30g.
•Paste Features: No Clean, Strong Viscosity, Bright Welding Point.
•Product Advantages: Pushing design for Smoother Flowing, No Waste During Welding.
•Applications: Widely Used In Circuit Board, IC, Phone, TV and Other Household Appliances and Industrial Equipment.

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$9.99

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wonderway

Wonderway Sn63/Pb37 T4 Tin Lead Solder Paste No Clean, 183℃ Melting Point (20g)

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•Paste Content: Alloy Tin 63% Pb 37%, Sloder Flux Content: 10.5%
•Product Parameters: Total Weight: 29g, Net Weight Of Paste: 20g
•Paste Features: No Clean, Strong Viscosity, Bright Welding Point
•Product Advantages: Pushing design for Smoother Flowing, No Waste During Welding
•Applications: Widely Used In Circuit Board, IC, Phone, TV and Other Household Appliances and Industrial Equipment

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$8.99

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Rectorseal

Rectorseal 14000 1.7-Ounce Nokorode Regular Paste Flux

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•Cleans and fluxes in one operation saving time and money
•Special oil base protects the solder joint against corrosive attack
•It's non-aggressive formula is ideal when used on copper and brass fittings
•Lead free and acid free-safe to use on potable water systems
•When heated, it reduces surface tension and allows the solder to flow easily and uniformly into the joint

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$3.25

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Chip Quik

Chip Quik SMD291AX Solder Paste no clean 63Sn/37Pb in 5cc syringe 15g

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•Solder Paste
•Leaded
•No Clean
•Syringe

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$14.99

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