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SP-7 Silver Solder Paste | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux

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$12.99

$ 6 .99 $6.99

In Stock
  • EASY TO USE: ‍Our silver solder paste syringe offers a no-mess, no-waste way to disperse the soldering paste. It’s designed for easy application.
  • HIGH CONDUCTIVITY: It’s excellent for electrical work and instrument assembly where high electrical conductivity is required.
  • CORROSION-RESISTANT: Our solder flux paste stays bright and doesn't turn black. It makes it ideal for brass, bronze, nickel, stainless steel joints, copper-based metals, and steel.
  • EXTREMELY TOUGH: It has 10,000-25,000 PSI tensile strength, making it 5x stronger than conventional solder wire. It also has a low melting point that allows it to flow smoothly.
  • SETS INSTANTLY: It helps prevent soldering failure due to moving parts while soldering because of the instant setting.



Product Description

Solder It Silver Solder Paste (SP-7)
Quick, Neat, Easy
Work with Peace of Mind
Advantages of Silver Solder
How to Apply Solder Paste?
Solder-it Butane Heat Tools and Accessories

Larry L Thomas
Reviewed in the United States on March 6, 2025
better to solder wire this way than with a soldering gun thanks.
LeeM
Reviewed in the United States on March 14, 2025
Purchased because said it worked on stainless steel. It does not.
Customer
Reviewed in Canada on January 24, 2025
It is total garbage!! does not work at all!! save your money and do not buy it!!!
CR
Reviewed in the United States on May 14, 2024
I wanted to use this to solder a front sight on a pistol. I tested it by trying to solder the ends of two pieces of brass together. Despite cleaning the surfaces, I could separate the brass with my hands. It seems like there isn't much solder in the flux. I think this would be best used like a primer. Heat the part and the flux, and add solder as needed.
Mama3978605
Reviewed in the United States on February 13, 2024
Works great, very easy to use! You get a lot for a great price too. Highly recommend this product and seller.
Paul E
Reviewed in the United States on December 12, 2024
Worked OK on bronze.
Gregg Riley
Reviewed in the United States on June 20, 2023
Years ago I worked for a company that used a commercial version of this stuff for Christmas lights. I was very pleasantly surprised that this worked as well if not better than the commercial stuff. I used it to replace the injection plugs on a 2008 Ford Edge & my rear pod lights on my RZR. The only drawback if you want to call it that is that it requires an open flame(I use a butane turbo torch) so it's not really usable around any combustibles.
Kieth Norrena
Reviewed in Canada on February 2, 2022
This stuff works great. But I have to say you get way less then you think. That syringe was 2/3rd’s air and 1/3rd solder. For the price I feel robbed.
Arianne
Reviewed in Canada on November 11, 2022
It seemed to have possibly expired? It wasn’t working well as directed. I know it takes some skill to learn how to weld, but it just seemed to be way to grainy.
J. G. Sampson
Reviewed in the United States on April 30, 2022
I bought this to solder the sim card reader on a cell phone. Perhaps it was the wrong paste ,but it didn't solder the card reader. Just sort of melted when heat was applied.
JC
Reviewed in the United States on October 14, 2020
The first time I ordered this product, usps showed as delivered but I never received it. I got in touch with the seller and they sent me another one for free. Awesome customer service. As for the product itself, the solder works great for my purposes which was repairing a guitar fret. Go slow with the plunger as the product has a tendency to not come out while building pressure, then spurt out all at once. It does seem to require a higher temp to get going and the range at which it will flow smoothly can be a little finicky if you're using cheap soldering equipment like I was. Just be patient and slowly move your temp settings up until you get smooth flowing solder. I initially had my temp settings too high and it was causing me problems until I backed it down.