how do I add it? just pour into antifreeze?

This product has to be used without antifreeze. You have to drain out your cooling system. This company does make a product that you can mix with antifreeze though.

Where is their warranty claim form. I cant seem to find it anywhere?

I don’t think there’s really much of a warranty claim just may be a refund if you even want to try to attack that

what does it do to a good radiator . does it build up inside the tubes?

I will get a thing layer, but won’t block the radiator tubes. But actually does work A+

how does this not seal the thermostat?

Directions say to take thermostat out.

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K&W 401232 Permanent Head Gasket & Block Repair with Nanotechnology - 32 Fl Oz

Product ID: 260384376

Details

Brand
K&W
Item weight
1.13 kg
Liquid volume
32 Fluid
Material
Copper
Package information
Bottle

🔧Permanent bond strength

🧪Nanotech crack filler

🛢️32 fl oz liquid volume

Description

🛠️ Seal the deal with nanotech power – don’t let leaks slow your hustle!

EASY APPLICATION - Pour-in liquid formula designed for hassle-free use
GENEROUS 32 OZ SIZE - Enough to tackle multiple repairs or larger engines
NANO POWERED PRECISION - Fills micro-cracks others miss for a rock-solid seal
LONG LASTING DURABILITY - Permanently hardens to protect your engine block
TRUSTED INDUSTRIAL GRADE - Copper-infused formula engineered for mechanical resilience

K&W 401232 Permanent Head Gasket & Block Repair uses advanced nanotechnology to fill cracks and crevices in engine blocks, creating a permanent, hardened bond. This 32 fl oz copper-based liquid is designed for industrial-strength automotive repairs, offering a cost-effective solution to extend engine life and prevent coolant leaks.

Specifications

ASIN	B000M8NZ70
Brand Name	K&W
Container Type	Bottle
Customer Reviews	3.9 3.9 out of 5 stars (332)
Global Trade Identification Number	00078372012242, 00078372012327
Included Components	Unit^Instruction Guide
Item Form	Liquid
Item Type Name	Automotive Accessories
Liquid Volume	32 Fluid Ounces
Manufacturer	CRC
Material	Copper
Recommended Uses For Product	Industrial, Mechanical
Specific Uses For Product	Head Gasket & Block Repair
UPC	078372012327
Unit Count	32 Grams
Viscosity	5w-30

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Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

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

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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4 days ago

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TrustScore 4.5 | 7,300+ reviews

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Smooth transaction and product arrived in perfect condition.

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