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Q: Is it okay to continue to idle the car with engine and brake lights on with liquid coming out of radiator? It says to idle for 20 minutes

The system should be sealed as the product circulates though it for the 20 minutes.

Q: Does it use Sodium Silicate?

Nowhere on the bottle does it say sodium silicate.

Q: I have a 1999 ford ranger. running fine now but it is getting older. can i use this as a preventative? or do i need to wait for a problem to show up?

The way K seal works is by seeking out leaks in a pressurized system. I feel you or best bet would be to wait until you know your leaking coolant. I use this in a truck about 7 months ago and I still have no problems with the truck. Work very well

Q: can i make a 100 make a 100 mile trip 10 minuets after i put the k-seal in...

Yes! It does it's magic within 10 minutes. Just don't drive it too hard for about 20 minutes. Drive smooth. Highway driving or a good road with a consistent speed is best. After 20 minutes, you are all good!

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🚗 Seal the deal—drive worry-free with permanent engine protection!

ONE STEP MAGIC - Shake, pour & go—no draining or flushing needed
PERMANENT POWER SEAL - 33% stronger formula for a lifetime fix
MICROFIBER TECHNOLOGY - Ceramic fibers seal cracks up to 0.64mm effortlessly
UNIVERSAL COMPATIBILITY - Works with all coolants and engine types, from cars to heavy machinery
MECHANIC APPROVED RELIABILITY - Trusted worldwide and ASTM D3147 certified for professional-grade repairs

K-Seal ST3501 is a professional-grade, 16oz head gasket sealer that permanently repairs blown head gaskets, cracked heads, and porous engine blocks. Featuring a formula with 33% more sealing power and ceramic micro-fibers, it seals leaks up to 0.64mm without engine flushing. Compatible with all coolants and engine types, it offers a cost-effective, mechanic-trusted solution backed by independent ASTM certification.

Have a Question? See What Others Asked

Is it okay to continue to idle the car with engine and brake lights on with liquid coming out of radiator? It says to idle for 20 minutes

Does it use Sodium Silicate?

I have a 1999 ford ranger. running fine now but it is getting older. can i use this as a preventative? or do i need to wait for a problem to show up?

can i make a 100 make a 100 mile trip 10 minuets after i put the k-seal in...

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TrustScore 4.5 | 7,300+ reviews

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Great price for an authentic product. Fast international shipping too!

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Customer service was outstanding when I had questions about the product.

2 days ago

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TrustScore 4.5 | 7,300+ reviews

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Manufacturer	Solv-Tec
Brand	K-Seal
Model	ST3501
Item Weight	1 pounds
Product Dimensions	2.5 x 2.5 x 8 inches
Item model number	KSLST3501
Is Discontinued By Manufacturer	No
Manufacturer Part Number	KSLST3501

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

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