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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)

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Returnable until Jan 31, 2025

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Availability: In Stock.
Fulfilled by Amazon
Arrives Sunday, Aug 24
Order within 5 hours and 52 minutes
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Color: Rosin Paste


Features

  • 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 315C / 200 600F. 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.

Description

This petroleum/rosin contains No Zinc chloride or ammonium chloride, making it a better choice for electronic repairs. Rosin leaves a protective coating over soldered area Once job is finished

Manufacturer: ‎SRA Soldering Products


Part Number: ‎135


Item Weight: ‎2 ounces


Item model number: ‎FLS135


Is Discontinued By Manufacturer: ‎No


Color: ‎Rosin Paste


Style: ‎Rosin Flux


Material: ‎lead


Item Package Quantity: ‎1


Cutting Diameter: ‎2.5 Inches


Included Components: ‎jar of flux


Batteries Included?: ‎No


Batteries Required?: ‎No


Assembled Diameter: ‎2.5 Inches


Date First Available: August 19, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Aug 24

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews

    • Great product
Color: Rosin Paste
This flux is essential when you’re soldering and desoldering large amounts of ICs and chips. It really helps ensure solid joints and clean work, especially when you’re dealing with dense boards or rework jobs. That said, for beginners or those just getting into board repair, I’d recommend starting with a no-clean flux in a syringe. It’s easier to apply precisely and doesn’t require as much cleanup, which can make learning a lot less frustrating. ... show more
Reviewed in the United States on June 24, 2025 by S
    • Good value; Good product.
Color: Rosin Paste
Good size container of flux for a reasonable price. Works well. Likely a lifetime supply for me. Containers are plastic these days - they open easier than the old-school metal ones that were impossible to open. Perhaps they crack in 30 years... probably not an issue.
Reviewed in the United States on July 8, 2025 by The User
    • Make Soldering Easy
Color: Rosin Paste
The real deal, works great.
Reviewed in the United States on August 2, 2025 by Douglas Stewart
    • Seems fine. Had other issues
Color: Rosin Paste
Seemed to work fine. But has issues with the quality of metal so couldn't get a good solder. But I don't think it was a fault of this solder.
Reviewed in the United States on August 3, 2025 by Jimmy
    • SRA Solder 135 Flux: Solid for Electronics
Color: Rosin Paste
The SRA Solder 135 Rosin Paste Soldering Flux makes soldering my circuit boards a breeze, flowing nicely with no messy residue. The 2oz jar is easy to dip into, but it can dry out if you don’t seal it tight after use.
Reviewed in the United States on May 16, 2025 by Toan D Bui
    • This paste is a must for old dirty wires before soldering. Works great.
Color: Rosin Paste
Every person that solders repairing electronics experiences wire that is old, cheap and very little copper in it. When your trying to solder those kinds of wire youll spend time heating the wire and it will not accept solder! I use a wire brush or sandpaper to clean the wire ends then use a dab ot this rosin paste. The solder then is absorbed into the wire giving you a faster and stronger joint. Professional electricians use rosin paste regularly. It is the only way you'll get cheap solder to work. Also works great when reheating an old sloder joint to attach new wire to it. ... show more
Reviewed in the United States on May 20, 2025 by john vanlandingham
    • Flux
Color: Rosin Paste
Great product and super fast shipping
Reviewed in the United States on August 2, 2025 by Dan Rubin
    • Flux for electronics soldering
Color: Rosin Flux - 2 Pack
My flux came inside the container and not stuck to the lid, for what that's worth! Im using a toothpick to coat my wires with the flux (consistency reminds me of bee's wax). I have also used my 2nd hands metal base, plopped a chunk of the flux there and used my heat gun to melt to dip wires. As a hobbyist these two cans will last me a while! ... show more
Reviewed in the United States on March 20, 2025 by Jose Quavo

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