

🛡️ Seal it once, drive worry-free forever!
CRC K&W 401016 Block Seal is a professional-grade, permanent metallic sealant designed to fix leaks in cast iron and aluminum engine blocks, radiators, and heater cores. Compatible with all water-cooled diesel and gasoline vehicles, it withstands extreme pressure and temperatures, exceeding ASTM D6107 standards to ensure a durable, reliable seal that prevents coolant loss and keeps your engine running smoothly.

| ASIN | B000CIPV5E |
| Brand | CRC |
| Customer Reviews | 4.1 4.1 out of 5 stars (361) |
| Date First Available | 28 August 2012 |
| Item Weight | 522 g |
| Item model number | 401016 |
| Manufacturer | CRC |
| Manufacturer Part Number | 401016 |
| Product Dimensions | 14.91 x 5.87 x 5.41 cm; 521.63 g |
Q**G
I used the this product twice and finally it worked. First time, I followed the instructions blindly without paying attention to capacity. I mixed it with 3 quarts of water. But I was only able to put half the solution to the radiator because my car has small capacity. So after doing all the things, My cars is still loosing coolant. After thinking it over, I decided to give a 2nd try. This time I mixed it with less water so I managed to put the whole can of k &w into cooling system. After going through all the procedures according to the video, it finally worked. Now I hope it will last a long time.
G**E
Very good product
B**N
Works as it should
D**E
Good product to return.
A**A
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Trustpilot
2 months ago
1 month ago