2 copper wires joined?

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.

What prep work is required on copper to get a good seal and hold?

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.

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."

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.

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Copper Lock, No Heat Solder, 2 oz. Plastic Container

Copper Lock, No Heat Solder, 2 oz. Plastic Container

Product ID: 450377000

Details

Brand
Comstar
Colour
Clear
Item form
Liquid
Special feature
Portable
Specific uses for product
Plumbing

🔥No heat or solder needed

🔧Bonds 240 fittings per 2oz

⏱️60-second permanent seal

SI$990

Duties & taxes included

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Sold byAmazon Solomon IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Revolutionize your plumbing game—no solder, no stress, just Copper Lock!

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.

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.

Specifications

ASIN	B004Y753FM
Best Sellers Rank	489,432 in DIY & Tools ( See Top 100 in DIY & Tools ) 358 in Solder
Brand	Comstar
Colour	Clear
Compatible Material	Metal, Liquid
Container Type	Bottle
Customer Reviews	4.2 out of 5 stars 630 Reviews
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
Item form	Liquid
Item package quantity	1
Manufacturer	Comstar
Manufacturer Part Number	024924108000
Model Number	10-800
Other Special Features of the Product	Portable
Special feature	Portable
Specific Uses For Product	Plumbing, Industrial
Specific uses for product	Plumbing, Industrial
UPC	024924108000
Unit Count	1 Liquid
Viscosity Level	Medium
Water Resistance Level	Waterproof

Reviews

M**A

Works as Wriitten its actually amazing and didnt expect the results too be so good

Telling you what as in for not leaking and Fast clean hold.. This stuff is amazing .. bending the pipe back and forth under pressure yeah it will break but any mechanic and plumber knows compare it too locktight if you twist it enough or bend it it will break loose but a copper pipe in the wall or for a fix its as good as solder its amazing actually i never believed it would work... for the price and the big bottle you can do allot allot of pipe repairs for allot less money for solder and Map gas so a better value for the money for sure

3.08.2025

S**N

4 months and holding fast on evaporator install

Replacing an evaporator inside a residential refrigerator

7.02.2022

J**D

Very good product

10.06.2023

M**Y

Solid Connections

I had some pieces of 1/2" copper left from a project and wanted to build a plant stand. I needed it to be secure and strong so I could pick it up and move it around and not worry about it coming apart. This worked great! I tried to pull the pieces apart and it is solid. So easy to use! I also purchased a similar one from my local Ace Hardware but this one was about 4x as big and cheaper and this one worked at least as well if not better.

29.03.2026

A**R

29.06.2026

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SI$990

Duties & taxes included

In stock

Sold byAmazon Solomon IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Solomon Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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Customer service was outstanding when I had questions about the product.

2 days ago

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