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Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant

Coolant Leak, 236ml | Multi-use Car Radiator & Head Gasket Repair Sealant

Q: How much would I need for a cooling system of 8.5 litres?

I think one purchase should be sufficient , just Google and double check.

Q: What long term damage doe's it do to the engine and water system

I used this in a 2004 Rover Streetwise that I bought in 2012. I used as a preventative measure as that particular engine was notorious for headgasket failure and the car is still running in 2022 never having had a problem with the engine except an alternator, so I would say long term damage is ZERO. I have used it in all my cheap runaround cars I have bought as my 3 sons got thier first cars and never had problems with it. Overall it seems to me to be a great product.

Q: Im doing a coolant flush but when i fill the system back up do i fill with plan water or antifreeze to add the k seal

fill system up as normal using antifreeze and add k-seal

Q: How much would I need to use for a 1.2L vehicle? Is it the whole bottle or part of the bottle?

I used 2 for a two litre car and sorted my issue which was a head gasket problem.

Product ID: 47965944

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Details

Material
Synthetic
Brand
K-Seal
Style
Compact
Item weight
0.26 Kilograms
Item dimensions L x W x H
8.9 x 3.8 x

🔧Multi-use for radiator & head gasket

⏱️Seals leaks in minutes

♻️Compatible with all antifreeze types

Frequently Bought Together

K-Seal ST5501 Multi-Purpose One Step Permanent Coolant Leak Repair, 8oz, Pour and Go, Mixes with All Antifreeze, No Flushing Required

PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems

K-Seal ST3501 Pour and Go Head Gasket Sealer, 16oz, Permanent Repair for Blown Head Gaskets, Cracked Heads and Blocks

Description

🚗 Seal the deal, skip the shop—coolant leaks fixed in a flash!

POUR GO SIMPLICITY - No draining or flushing needed—just shake, add, and run your engine as usual.
ONE STEP LEAK SEALING - Unique formula targets holes & cracks instantly without engine cooling loss.
UNIVERSAL COMPATIBILITY - Works with all antifreeze coolants and engines up to 12 cylinders—car or light truck.
FIX IT FAST DRIVE FASTER - Seals leaks permanently in just minutes—no downtime, no hassle.
MECHANIC TRUSTED DURABILITY - Professional-grade, cost-effective repair backed by millions sold and ASTM-certified reliability.

K-Seal Coolant Leak Repair Sealant is a 236ml synthetic resin formula designed to permanently seal leaks in radiators, head gaskets, freeze plugs, and more. Compatible with all antifreeze types and engines up to 12 cylinders, it requires no draining or flushing—just shake, pour, and drive. Trusted by mechanics worldwide and independently ASTM tested, it offers a fast, reliable, and cost-effective solution to keep your engine cooling system running smoothly.

Specifications

Manufacturer	K-Seal
Part number	ST5501
Item Weight	260 g
Product Dimensions	8.89 x 3.81 x 11.43 cm; 260 g
Item model number	ST5501
Colour	Blue
Style	Compact
Material	Synthetic Resin
Volume	236 Millilitres
Item Package Quantity	1
Batteries included?	No
Batteries Required?	No

Have a Question? See What Others Asked

How much would I need for a cooling system of 8.5 litres?

What long term damage doe's it do to the engine and water system

Im doing a coolant flush but when i fill the system back up do i fill with plan water or antifreeze to add the k seal

How much would I need to use for a 1.2L vehicle? Is it the whole bottle or part of the bottle?

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