🛠️ Seal it, save it, and drive worry-free!
STP GST96300EN06 Radiator Sealer is a UK-made, 300ml treatment that permanently seals radiator leaks, protects rubber hoses, prevents corrosion, and lubricates the water pump, ensuring your vehicle’s cooling system runs efficiently and reliably.
| Manufacturer | MOTORMEDIC |
| Brand | STP |
| Model | Sealer |
| Product Dimensions | 7.8 x 4.3 x 14.7 cm; 360 g |
| Item model number | GST96300EN06 |
| Manufacturer Part Number | GST96300EN06 |
| Item Weight | 360 g |
A**R
Highly recommended
Was told to replace the radiator. But it’s been almost a year and the leaks are all fixed
H**A
Not 100% effective
Leakage reduced to a smaller amount of coolant but not stopped completely
A**A
It works pretty well
I have a quiet extended crack on my radiator’s connection and I used to add liquid everyday, this product closed the crack 99%! Very happy with the result!
S**A
Solved my car problem
Adding this in the coolant reservoir fixed my Chevy’s issue..
B**L
It works
I added it to my car coolent water and It really works
T**D
Didn't stop my leak!
Didn't work on my leaking GX 460 radiator. Was a relatively small leak as well
L**D
Does the job
Used it with different vehicles and it worked as it should
Trustpilot
1 day ago
1 month ago
