



🚀 Fix leaks fast, drive worry-free with K-Seal ST5516!
The Solv-Tec ST5516 K-Seal is a professional-grade, heavy-duty coolant leak repair solution that permanently seals cracks and holes in water-cooled engines. Compatible with all antifreeze types, it requires no system draining or flushing—just shake, pour, and go. Trusted by mechanics and independently tested to ASTM standards, it’s designed for large commercial and agricultural vehicles, delivering fast, reliable, and clog-free performance to extend engine life.
| ASIN | B00SXGL2C8 |
| Best Sellers Rank | #1,348,020 in Automotive ( See Top 100 in Automotive ) #144 in Cooling System Additives |
| Brand Name | Unknown |
| Compatible Material | Glass, Metal, Plastic, Rubber |
| Customer Reviews | 5.0 5.0 out of 5 stars (8) |
| Item Form | Liquid |
| Item Weight | 16 Ounces |
| Manufacturer | netmagic |
| Model | DAS16819 |
| Number of Items | 1 |
| Part Number | ST5516 |
| Style Name | Compact |
| Unit Count | 1 Count |
| Water Resistance Level | Water Resistant |
E**.
A+
This is great
S**I
works great
good product
A**R
Excellent!!!
I will say this, I put this in my coolant reservoir and 20 minutes later then an hour later then 2 Days Later no leak the reservoir is still full. Keep in mind every week I will check my coolant level and there would be NON in there but now everything is as it should be. I think this is the one and only product you will need for the seal and fix of leaks in your engine. Some of the others on the market may work but not like this. It's easy just put it in and GO!!!!
Trustpilot
3 days ago
1 month ago