🛠️ Seal leaks like a pro—because your ride deserves the best!
Bar's Leaks 1109-6PK Liquid Copper 'Block Seal' is a powerful, one-step liquid formula that permanently repairs cooling system leaks without draining. Compatible with all types of antifreeze and coolant, it seals leaks in plastic, aluminum, and cast iron components, making it an essential, time-saving fix for cars, trucks, SUVs, and RVs. Packaged in six 18 oz. bottles, it offers long-lasting protection and convenience.
| Material | Glass, Copper |
| Brand | Bar's Leaks |
| Style | Compact |
| Item Weight | 1.3 Pounds |
| Item dimensions L x W x H | 2.6 x 2.6 x 7.4 inches |
| Compatible Material | Glass |
| Water Resistance Level | Waterproof |
| Item Form | Liquid |
| Unit Count | 6.0 Count |
| Global Trade Identification Number | 10046087011093 |
| Number of Items | 6 |
| Color | clear |
| Manufacturer | Bar's Leaks |
| Model | 1109-6PK |
| Item Weight | 1.3 pounds |
| Product Dimensions | 2.6 x 2.6 x 7.4 inches |
| Item model number | 1109-6PK |
| Manufacturer Part Number | 1109-6PK |
A**R
Good product
This works great!!! Sealed up a leaking stud within minutes
B**E
Great Stuff!!!
Daughters old car has had a rough life. Radiator started leaking. She drove low of antifreeze and caused it to overheat but she did not know. She called me saying the car just lost power and would not accelerate. While diagnosing, I found the low antifreeze level. I added just water and quickly found the leak. This daughter has zero cash saved and I've put too much money into her cars because she is not responsibly caring for her cars nor budgeting for car ownership. She has destroyed this beautiful car and it looks awful inside and out. So, I decided to try this product instead of replacing the radiator ($800). The Bar's Leak worked perfectly in just 15 minutes and stopped the radiator leak completely. Great stuff!!!
C**A
Stop Leak
The stop leak worked great. It arrived just as it was stated it would.
R**R
Good Stuff
So far so good,did what it was supposed to
E**N
Fixed my leaky head gasket
I started noticing drips underneath my rather old car and knew it wasn't worth fixing so i did some research and bought this. I followed the directions carefully: drain some fluid, pour this in, idle for 15 min, and let it cool. After doing so i've noticed no more drips, it's only been about a week so i'll update after a while to let you know if it really lasts but so far it's been great.One note: After running this through the system I did have to clean out the overflow cap which the product had plugged thinking it was a leak. If you notice that when the engine is cool, your radiator hose has collapsed, that indicates negative pressure in the system, in other words it's not drawing fluid from the overflow: clean out the overflow lines and you should be all set.
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
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 day ago
