--- product_id: 450377000 title: "ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container" brand: "comstar" price: "331 zł" currency: PLN in_stock: true reviews_count: 5 category: "Comstar" url: https://www.desertcart.pl/products/450377000-comstar-copper-lock-no-heat-solder-2-oz-plastic-container store_origin: PL region: Poland --- # No heat or solder needed Bonds 240 fittings per 2oz 60-second permanent seal ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container **Brand:** comstar **Price:** 331 zł **Availability:** ✅ In Stock ## Summary > 🔧 Revolutionize your plumbing game—no solder, no stress, just Copper Lock! ## Quick Answers - **What is this?** ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container by comstar - **How much does it cost?** 331 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/450377000-comstar-copper-lock-no-heat-solder-2-oz-plastic-container) ## Best For - comstar enthusiasts ## Why This Product - Trusted comstar brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Wide Temperature Range:** Operates flawlessly from -60°F to +300°F for versatile applications. - • **Eco-Friendly & Reusable:** Disassembles at 400°F for easy repairs and is environmentally safe. - • **Instant Leak-Proof Bond:** Achieve a permanent seal in just 60 seconds—no torch required. - • **Space-Grade Reliability:** Trusted by the US Space Program and exceeds military copper bonding specs. - • **Ultra-Pressure Endurance:** Withstands up to 10,000 PSI flow and 500 PSI contained pressure. ## Overview ComStar Copper Lock is a cutting-edge, no-heat solder alternative that creates permanent, leak-proof bonds on copper and brass pipes within 60 seconds. Engineered for extreme conditions and trusted by the US Space Program, it withstands pressures up to 10,000 PSI and temperatures from -60°F to 300°F. This 2 oz. portable liquid bonds up to 240 fittings, making it the ultimate tool for professional-grade plumbing without the hassle of traditional soldering. ## Description This unique product instantly bonds copper and brass pipes/fitting without the use of heat or metal solder. Copper Lock’s patent pending formula allows for it to withstand pressures of 10,000 PSI flow and 500 PSI contained. It can also withstand temperatures from -60F to +300F. It is good for all yellow metals, copper and brass pipe and fittings and for all refrigerants and liquids. It can handle water systems pressure tests in 2 minutes and A/C system pressure test in 25 minutes. Copper Lock can also be disassembled at 400F heat and then reapplied. Environmentally safe. Review: Pour tous ceux qui ne sont pas capable de souder ou d'installer des tuyaux de cuivre dans des espaces très restreint, ce produit est dispensable. Review: Very good product ## Features - Causes skin irritation. - ComStar’s Copper Lock is the revolutionary method for soldering pipes! Designed for the US Space Program! - Simply apply it inside the connector and/or onto the pipe (or both); making sure the liquid is totally around the circumference, fit in the pipe and within 60 seconds a permanent leak-proof seal will prevail - No heat or solder is required to create a permanent leak-proof bond - 2oz bottle will bond as many as 240 3/8 inch fittings - Exceeds all US Military copper bonding specifications: Mil-S-46163A Type I Grade K, Mil-S-224723E Letter Grade CVV ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B004Y753FM | | Brand | Comstar | | Colour | Clear | | Compatible Material | Metal, Liquid | | Container Type | Bottle | | Customer Reviews | 4.3 4.3 out of 5 stars (599) | | Full Cure Time | 60 Seconds | | Global Trade Identification Number | 00024924108000 | | Included Components | Liquid | | Item Form | Liquid | | Item Package Quantity | 1 | | Item Volume | 2 Fluid Ounces | | Item Weight | 2 Ounces | | Manufacturer | Comstar | | Model Number | 10-800 | | Other Special Features of the Product | Portable | | Specific Uses For Product | Plumbing, Industrial | | UPC | 024924108000 | | Unit Count | 1 Liquid | | Viscosity | Low to Medium Viscosity | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Comstar - **Colour:** Clear - **Item form:** Liquid - **Special feature:** Portable - **Specific uses for product:** Plumbing, Industrial ## Images ![ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container - Image 1](https://m.media-amazon.com/images/I/51jrzT-GQ-L.jpg) ![ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container - Image 2](https://m.media-amazon.com/images/I/51IYvFREBqL.jpg) ![ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container - Image 3](https://m.media-amazon.com/images/I/81CDaPVBfFL.jpg) ![ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container - Image 4](https://m.media-amazon.com/images/I/61uraCe1SiL.jpg) ![ComStar Copper Lock, No Heat Solder, 2 oz. Plastic Container - Image 5](https://m.media-amazon.com/images/I/51GTsKjWVJL.jpg) ## Questions & Answers **Q: 2 copper wires joined?** A: Copper Lock is will not attached copper wires together. It works in the absence of oxygen. Copper Lock be applied to both the exterior of the pipe and the inside of the fitting (male and female)...this would also apply to those situations where you can not turn the pipe immediately after inserting the pipe into the fitting. **Q: What prep work is required on copper to get a good seal and hold?** A: Prep Work: Its best to start with a clean pipe and fitting. Meaning no oil or dirt on the surface to be connected. Then, using sand paper or emery cloth, rough up lightly the section of the pipe and the inside of the fitting to be connected...wipe clean and apply the Copper Lock to both the outer pipe surface and the inside of the fitting. Put together and turn a half revolution...do not try to reposition for about 2 minutes. **Q: Anyone have ideas for a different solution for this? "I am looking to join two 26 gauge sheets of copper using a simple over lap."** A: Copper Lock was developed for the US space program to work in the absence of oxygen. This environment is great for attaching pipes into fittings. It will not work for the application you do scribe...air will have access via the opening along the sides of the sheets. **Q: Does this have a copper color to it when cured?** A: No ## Customer Reviews ### ⭐⭐⭐⭐⭐ Review *by S***T on 1 December 2020* Pour tous ceux qui ne sont pas capable de souder ou d'installer des tuyaux de cuivre dans des espaces très restreint, ce produit est dispensable. ### ⭐⭐⭐⭐⭐ Review *by J***D on 10 June 2023* Very good product ### ⭐⭐⭐⭐⭐ Review *by S***N on 7 February 2022* Replacing an evaporator inside a residential refrigerator ## Frequently Bought Together - ComStar Copper Lock, No Heat Solder for Copper & Brass Pipes, Create A Permanent Leak-Proof Bond Instantly, Made in USA, 2 Ounces (10-800) - FiberWeld Pipe Repair Cast 2x48 Inch – High Strength Adhesive Fiberglass Wrap – White - Just For Copper JFC070 Epoxy Putty --- ## 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/450377000-comstar-copper-lock-no-heat-solder-2-oz-plastic-container](https://www.desertcart.pl/products/450377000-comstar-copper-lock-no-heat-solder-2-oz-plastic-container) --- *Product available on Desertcart Poland* *Store origin: PL* *Last updated: 2026-05-01*