--- product_id: 6940739 title: "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" brand: "solder-it" price: "107 zł" currency: PLN in_stock: true reviews_count: 13 category: "Solder It" url: https://www.desertcart.pl/products/6940739-solder-it-sp-7-silver-solder-paste-7-1-grams store_origin: PL region: Poland --- # High electrical conductivity Low melting point at 430°F 10,000-25,000 PSI tensile strength 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 **Brand:** solder-it **Price:** 107 zł **Availability:** ✅ In Stock ## Summary > ⚡ Solder smarter, not harder — the silver standard in every fix! ## Quick Answers - **What is this?** 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 by solder-it - **How much does it cost?** 107 zł with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/6940739-solder-it-sp-7-silver-solder-paste-7-1-grams) ## 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 - • **Flawless Conductivity:** Silver-infused paste ensures superior electrical flow for critical electronic repairs. - • **Corrosion-Resistant Shine:** Keeps joints bright and untarnished on metals like brass, copper, and stainless steel. - • **Instant Set, Lead-Free Safety:** Fast-setting, non-toxic formula with zero lead, cadmium, or harmful metals. - • **Unmatched Strength & Durability:** 5x stronger than conventional solder with up to 25,000 PSI tensile strength. - • **Effortless Precision Application:** No-mess syringe design for clean, skill-free soldering every time. ## Overview Solder-It SP-7 Silver Solder Paste is a premium, lead-free flux paste designed for electronics, jewelry, and home repairs. Featuring a no-mess syringe for easy application, it delivers exceptional electrical conductivity and up to 25,000 PSI tensile strength. Its corrosion-resistant formula stays bright on multiple metals and sets instantly, making it the go-to choice for professionals and DIYers seeking durable, reliable soldering 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: It works without a fuss - It actually works as stated. The soldered joint is super strong and is silver. I read all the other reviews where some complained about low quantity. The two that I purchased did not have that problem. After use it is a good practice to store the tip in an upright position. ## 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 | #6,690 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #10 in Soldering Flux | | Brand | Solder-It | | Customer Reviews | 4.0 4.0 out of 5 stars (690) | | 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:** 0.04 Pounds - **Item dimensions L x W x H:** 6.4 x 1.8 x 0.5 inches - **Material:** Silver - **UPC:** 384920590606 ## Images ![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 - 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. ### ⭐⭐⭐⭐⭐ It works without a fuss *by R***T on February 11, 2026* It actually works as stated. The soldered joint is super strong and is silver. I read all the other reviews where some complained about low quantity. The two that I purchased did not have that problem. After use it is a good practice to store the tip in an upright position. ### ⭐⭐⭐⭐⭐ Excellent product *by S***H on March 2, 2026* This is an awesome product, I would recommend using a small butane torch for small welds. It is very strong and easy to work with. ## 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 --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.pl/products/6940739-solder-it-sp-7-silver-solder-paste-7-1-grams](https://www.desertcart.pl/products/6940739-solder-it-sp-7-silver-solder-paste-7-1-grams) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-04-27*