---
product_id: 6940739
title: "SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux"
brand: "solder-it"
price: "VT5520"
currency: VUV
in_stock: true
reviews_count: 13
category: "Solder It"
url: https://www.desertcart.vu/products/6940739-sp-7-silver-solder-paste-7-1-grams-soldering-flux
store_origin: VU
region: Vanuatu
---

# High electrical conductivity Low melting point for smooth flow Corrosion-resistant finish SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux

**Brand:** solder-it
**Price:** VT5520
**Availability:** ✅ In Stock

## Summary

> ⚡ Solder smarter, not harder — the silver standard in every project!

## Quick Answers

- **What is this?** SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux by solder-it
- **How much does it cost?** VT5520 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vu](https://www.desertcart.vu/products/6940739-sp-7-silver-solder-paste-7-1-grams-soldering-flux)

## Best For

- solder-it enthusiasts

## Why This Product

- Trusted solder-it brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lead-Free & Safe:** Non-toxic formula free from lead, cadmium, antimony, and zinc
- • **Flawless Conductivity:** Silver-infused paste ensures superior electrical performance
- • **Instant Set, Zero Failures:** Prevents soldering errors with rapid setting, even on moving parts
- • **Unmatched Strength & Durability:** Up to 25,000 PSI tensile strength—5x stronger than standard solder
- • **Effortless Precision Application:** No-mess syringe design for flawless DIY soldering every time

## Overview

Solder-It SP-7 Silver Solder Paste is a premium, lead-free silver solder flux designed for electronics, jewelry, and home repairs. Featuring a no-mess syringe for easy application, it delivers exceptional electrical conductivity and corrosion resistance. With tensile strength up to 25,000 PSI and a low melting point for smooth flow, it sets instantly to ensure durable, reliable joints without toxic metals.

## Description

Buy Solder-It SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux: Soldering Flux - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Easy, fast, and cost effective way to repair a broken rear defroster connection. - Normally I don't leave reviews, but this product worked awesome. I have a 2014 Jeep Wrangler and the rear defrost cable is attached to the back window by a small metal button. The button can become detached breaking the rear defrost. It can't just be glued back because the button is conductive. I tried a silver impregnated epoxy, but it has to be mixed a certain ratio or it won't stick and it has to be heated to a certain temperature for a certain time. It held for about a year and came off. I asked at different glass places, but they only replace the entire nine hundred dollar window, they don't just fix the button. Someone suggested Solder-It as it is a metal solder and has silver in it so is conductive. I cleaned the attachment point and button, put enough Solder-it to cover the back of the button, stuck it to the glass. Then took my small pencil torch, and while holding against the glass with the drill bit so I didn't burn my fingers and heated up the button to melt the solder. It took a matter of seconds and it was melted all the way around. I held it with the drill bit while the glass cooled. I'm happy to say it is stuck tight. I was also able to test it in last nights snow storm and the rear defrost worked like normal. Didn't have to futz with mixing or heating at a certain temp for a certain time. I'm all repaired for the cost of the Solder-it. Which beats a $900 rear glass replacement. Hopefully it will last. There was enough left over to do it again or if the other side comes off. Super happy with the purchase.
Review: Perfect application! - This worked perfect for soldering Jewelry!

## Features

- 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 with little to no skill required for DIY projects and tasks.
- HIGH CONDUCTIVITY: It’s excellent for electrical work and instrument assembly where high electrical conductivity is required. You can use it on jewelry, electronic components, wiring, and circuit board work.
- CORROSION-RESISTANT: Our solder flux paste stays bright and doesn't turn black. This 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 at 430 F and re-melt at 650 F.
- SETS INSTANTLY: It helps prevent soldering failure due to moving parts while soldering because of the instant setting. It’s also non-toxic and contains no lead, cadmium, antimony, or zinc.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000OVI0IY |
| Batteries required | No |
| Best Sellers Rank | #6,756 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #11 in Soldering Flux |
| Brand | Solder-It |
| Customer Reviews | 4.0 4.0 out of 5 stars (671) |
| Item Weight | 0.64 ounces |
| Item dimensions L x W x H | 6.4 x 1.8 x 0.5 inches |
| Item model number | MSW-IS-SP-7 |
| Manufacturer | Solder-It |
| Material | Silver |
| Number of Items | 1 |
| Product Dimensions | 6.4 x 1.8 x 0.5 inches |
| UPC | 384920590606 |

## Product Details

- **Brand:** Solder-It
- **Item Weight:** 18.14 g
- **Item dimensions L x W x H:** 6.4 x 1.8 x 0.5 inches
- **Material:** Silver
- **UPC:** 384920590606

## Images

![SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux - Image 1](https://m.media-amazon.com/images/I/51xe+1mxPcL.jpg)

## Questions & Answers

**Q: Will this work to close jump rings?**
A: Yes, it will solder close jump rings

**Q: Buying for school. need to solder solitaire rings because normal solder isn't working the best. good enough?**
A: For the life of me can't understand why anyone would answer, in some form, "I don't know".  How the paste works with the solder used needs to be tested.  I did.  Wife makes 3D dream catchers using 4mm dia wire rings, in various diameters 6"-18" (all are coated) from craft stores.  Rosin (or flux) core solder work ok but I've found this SOLDER-IT SILVER BEARING SOLDER PASTE used with solid LEAD FREE SILVER BEARING solder holds the best using a butane torch.  Key is, one must heat what's being soldered after the paste is used and before the solder is applied.  Temperature is everything.  If the base material can be heated with a soldering iron by all means use it as the solder flows and bonds towards the base material.

**Q: what type of metal is left behind?, silver?**
A: I only used a small amount when I created a amethyst and sterling dragonfly for a client, still have quite abit of the soldering silver left.  I used a low heat soldering iron (silver melts at a fairly low temperature)

**Q: Could I use this on gold costume jewelry jump rings or will the silver look too obvious? I am at a loss as to what to use for the jump rings.**
A: You could use it on the gold costume jewelry, however, it would be obvious it is not gold.  You would better using Solder Paste With Flux Yellow Gold 14k 1 Dwt.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Easy, fast, and cost effective way to repair a broken rear defroster connection.
*by P***5 on December 30, 2025*

Normally I don't leave reviews, but this product worked awesome. I have a 2014 Jeep Wrangler and the rear defrost cable is attached to the back window by a small metal button. The button can become detached breaking the rear defrost. It can't just be glued back because the button is conductive. I tried a silver impregnated epoxy, but it has to be mixed a certain ratio or it won't stick and it has to be heated to a certain temperature for a certain time. It held for about a year and came off. I asked at different glass places, but they only replace the entire nine hundred dollar window, they don't just fix the button. Someone suggested Solder-It as it is a metal solder and has silver in it so is conductive. I cleaned the attachment point and button, put enough Solder-it to cover the back of the button, stuck it to the glass. Then took my small pencil torch, and while holding against the glass with the drill bit so I didn't burn my fingers and heated up the button to melt the solder. It took a matter of seconds and it was melted all the way around. I held it with the drill bit while the glass cooled. I'm happy to say it is stuck tight. I was also able to test it in last nights snow storm and the rear defrost worked like normal. Didn't have to futz with mixing or heating at a certain temp for a certain time. I'm all repaired for the cost of the Solder-it. Which beats a $900 rear glass replacement. Hopefully it will last. There was enough left over to do it again or if the other side comes off. Super happy with the purchase.

### ⭐⭐⭐⭐⭐ Perfect application!
*by T***S on December 26, 2025*

This worked perfect for soldering Jewelry!

### ⭐⭐⭐⭐⭐ A++++
*by D***D on April 8, 2025*

A++++ Excellent product. Of course, good soldering skills will help. I am a very seasoned and capable electronics tech and this product nails it. I used it, also, to resolder a broken spit valve on my bass trombone. Worked perfectly. One note - the paste is fairly thick - so, once it starts coming out of the tube, back off the plunger so it doesn't continue flowing.

## Frequently Bought Together

- Solder-It SP-7 Silver Solder Paste 7.1 Grams | Soldering Flux Paste for Electronic Components, Home Improvement, and Wiring | Silver Solder for Jewelry Making and Repair | Lead-Free Solder Flux
- Aquiflux Self Pickling Flux for Precious Metals Gold Silver Jewelry and Hard Soldering 8 Oz Megacast (275 ml)
- CRAFT WIRE 18 Gauge, 925 Sterling Silver Wire (Round) Half Hard Made in USA - 5FT

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*Product available on Desertcart Vanuatu*
*Store origin: VU*
*Last updated: 2026-02-27*