🚀 Seal leaks like a pro—drive worry-free and stay ahead of the pack!
Bar's Leaks 1109 Liquid Copper Block Seal is an 18 oz. one-step, sodium silicate-based formula designed to permanently repair leaks in cooling systems. Compatible with all types of antifreeze and cooling system materials, it requires no draining and works by penetrating and sealing leaks in radiators, blocks, heads, and more, ensuring a durable, waterproof fix for cars, trucks, SUVs, and RVs.
| Material | Sodium Silicate |
| Brand | Bar's Leaks |
| Style | 1 Pack |
| 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 |
| 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 |
A**R
Good product
This works great!!! Sealed up a leaking stud within minutes
A**R
Good
Best stop leak
C**A
Stop Leak
The stop leak worked great. It arrived just as it was stated it would.
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.
K**K
Holding up 4 months later
Had a bad leak I couldn’t pin point. Used a bottle of this and haven’t had an issue going on 4 months. Pressure tested and holding up.
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.
M**K
Nice
Nice
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 months ago
3 days ago
