🛡️ Seal leaks like a pro—never let a drip slow your drive!
Bar's Leaks 1109 Liquid Copper Block Seal is an 18 oz. one-step, sodium silicate-based formula that permanently repairs leaks in all cooling system materials without draining. Compatible with every type of antifreeze, it uses fiber additives to create a strong, waterproof seal, ensuring hassle-free maintenance for cars, trucks, SUVs, and RVs.
| Material | Sodium Silicate |
| Brand | Bar's Leaks |
| Item Weight | 18 Ounces |
| Item dimensions L x W x H | 7.5 x 2.6 x 2.6 inches |
| Compatible Material | Ceramin |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| UPC | 046087011096 |
| Unit Count | 1.0 Count |
| Style | 1 Pack |
| Global Trade Identification Number | 00046087011096 |
| Number of Items | 1 |
| Surface Recommendation | Copper |
| Manufacturer | Bar's Leaks |
| Item Weight | 1.12 pounds |
| Product Dimensions | 7.5 x 2.6 x 2.6 inches |
| Country of Origin | USA |
| Item model number | 1109 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 1109 |
L**P
Would buy again
Worked great for me. I had a small leak in my radiator and this product worked. Really easy to use and fast acting.
K**E
Works great
Had a small leak and couldn't find it. This fixed it.
C**A
Stop Leak
The stop leak worked great. It arrived just as it was stated it would.
I**O
Good
Good
S**E
I was hesitant
I decided not to use it after conducting further investigations. Some people said it clogs up their coolant system causing more damage and money down the line. I decided to find the reason for the leak and was glad I did because one of my flanges was made out of plastic and it had a crack so I replaced that with metal.
A**R
Good product
This works great!!! Sealed up a leaking stud within minutes
A**R
Good
Best stop leak
D**D
Did not work
Drain and Flush, put with new coolant and leak product , I follow instructions. Next day pin hole still leaking.
Trustpilot
2 weeks ago
1 month ago
