How do I clean this crap out of my radiator? Followed directions and now my head gasket doesn't leak but my radiator is totally clogged. Rad was new.

It’s a 32 ounce bottle. If you’re putting it in a car you should only use 10 ounces. I wonder if you didn’t use a whole bottle, perhaps? I added a whole bottle to my Kenworth and my problem was solved. I had a Radiator seam leak in a plastic/aluminum radiator

is there a limit to size of leak?

I had a small leak on the head gasket it sealed it fine I believe it would seal a larger leak, be sure to take your thermostat out and flush the cooling system at least four times follow the directions on the bottle.

I wish to know that. I suggest all headache should go to the manufacturer because she did make function test except it does 'block the leaking'. I believe she does not know how to prevent the block of the coolant level sensor; how to prevent the trigger of high temperature warning from the temperature sensor of the engine...etc.

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K&W 401224 FiberLock Head Gasket & Block Repair - 32 Fl Oz

Product ID: 6911365

Details

Brand
K & W
Color
gray
Manufacturer
CRC
UPC
078372012242
Unit Count
1 Count

🧪Nanotech seals smallest cracks permanently

⏱️Repairs leaks in 30 minutes or less

🛡️Military-strength fiber reinforcement

$92.45

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Description

🛠️ Fix it once, fix it right — the ultimate coolant leak solution!

NO DRAINING REQUIRED - Simply pour in and fix leaks without the hassle of draining your cooling system.
NANOTECHNOLOGY PRECISION - Seals even the tiniest cracks and crevices for a flawless fix.
MILITARY GRADE FIBER TECHNOLOGY - Multi-layer web-like fiber mesh ensures a durable, long-lasting seal.
PERMANENT LEAK REPAIR IN 30 MINUTES - Stop coolant loss fast with a proven, time-saving formula.
COOL X CONDITIONER LOWERS ENGINE TEMP - Circulates to reduce operating temperature, protecting your engine’s performance.

K&W 401224 FiberLock Head Gasket & Block Repair is a 32 fl oz premium coolant additive that permanently seals leaks in engine cooling systems within 30 minutes. Featuring military-strength fibers and advanced nanotechnology, it repairs cracks and holes without draining your system, while its Cool-X Conditioner lowers engine temperature for enhanced performance and protection.

Specifications

ASIN	B006OW2PIS
Best Sellers Rank	#33,557 in Automotive ( See Top 100 in Automotive ) #39 in Gasket Sealers
Brand Name	K & W
Color	gray
Customer Reviews	4.2 4.2 out of 5 stars (919)
Global Trade Identification Number	00078372012242
Item Type Name	Fiberlock
Manufacturer	CRC
Model	401224
Number of Items	1
Part Number	401224
UPC	078372012242
Unit Count	1 Count
Warranty Description	2 year manufacturer

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

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I loved the variety of products available. Will definitely shop again.

2 months ago

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$92.45

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to British Virgin Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Abdullah B.

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

3 weeks ago

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