ComStar Copper Lock, No Heat Solder, 10 ml by Comstar

ComStar Copper Lock, No Heat Solder, 10 ml by Comstar

Q: Can I use it to fix a tiny leak at copper pipe connection ? Thanks

No. This is for attaching two copper pipes together, and it will need to cure for a little while before it gets wet. It won't help with an existing leak. I would try plumbers' putty, and if that doesn't help with the leak, you may need to pull the pipes apart. It'll cost a little money, but a plumber will be a big help.

Q: Has anyone tried using this on flared hvac fittings that are having a problem getting a good seal?

No, not tried. But can only imagine it would work well. However, flared hvac fittings shouldn’t really need this as they use threats, ferrules, and viton seals, correct? Anyway, I would just do an experiment: spend 10 on a bottle, assemble a capped tube using said flared fittings, and pressurize (standard pancake-style or alike 1XX psi compressor for pneumatic tools etc). Report back if pressure holds (compared to the control - compressor alone is good) ;)

Q: Can it be used for jewlery making

Probably not. I don’t think it would hold up to constant movement. I think it was a solderless method of bonding copper tubing and elbows together without using a torch and solder.

Q: I have a turntable that only works on one channel, thinking there's a bad connection internally. Would this product work for this?

I had the same problem but after readjusting the two screws that attach the cartridge to the headshell the problem is fixed so I figured out the problem was the needle was not fit in the vinyl correctly, if it leans on one side then it only works on the channel it leans on, hopes it helps

3.9/5

Product ID: 727876325

Secure Transaction

💪500 psi pressure rating

🔥No heat soldering

⏱️Instant bonding in minutes

Frequently Bought Together

ComStar Copper Lock, No Heat Solder for Copper & Brass Pipes, Create A Permanent Leak-Proof Bond Instantly, Made in USA, 10 ml (10-801)

FiberWeld Pipe Repair Cast 2x48 Inch – High Strength Adhesive Fiberglass Wrap – White

Just For Copper JFC070 Epoxy Putty

Description

🔧 Lock it down without the heat—bond smarter, not harder!

RAPID SYSTEM TESTING - Test water system pressure in just 2 minutes and A/C systems within 25 minutes—speed meets reliability.
ECO FRIENDLY REUSABLE - Environmentally safe formula that can be disassembled at 400°F for quick repairs or reapplications.
VERSATILE COMPATIBILITY - Works flawlessly on copper, brass, and yellow metal fittings—your all-in-one pipe bonding solution.
UNMATCHED PRESSURE RESISTANCE - Withstands up to 500 psi, ensuring durability under extreme conditions from -50°F to 320°F.
EFFORTLESS NO HEAT APPLICATION - Create permanent, leak-proof bonds without a torch or soldering iron—safe and simple.

ComStar Copper Lock is a 10 ml, no-heat solder alternative designed for pipes up to 22.8 inches. It forms a permanent, leak-proof bond rated for 500 psi and temperatures from -50°F to 320°F. Compatible with copper, brass, and yellow metal fittings, it enables rapid pressure testing and can be disassembled with heat for easy maintenance—all while being environmentally safe.

Specifications

Manufacturer	Comstar
Part number	024924108017
Item Weight	45 g
Product Dimensions	12.7 x 12.7 x 15.24 cm; 45 g
Color	red
Item Thickness	5 Inches
Included Components	liquid
Batteries Included	No
Batteries Required?	No
Item Dimensions LxWxH	12.7 x 12.7 x 15.2 cm

Have a Question? See What Others Asked

Can I use it to fix a tiny leak at copper pipe connection ? Thanks

Has anyone tried using this on flared hvac fittings that are having a problem getting a good seal?

Can it be used for jewlery making

I have a turntable that only works on one channel, thinking there's a bad connection internally. Would this product work for this?

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

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

2 days ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving over 300 million shoppers across more than 200 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

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

2 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

View all Trustpilot reviews

About Us

Customer Services

Customer Support

Regional Access

Legal & Policies

Social

Get the App

ComStar Copper Lock, No Heat Solder, 10 ml by Comstar

Description

Specifications

Have a Question? See What Others Asked

Common Questions