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

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

Product ID: 6911247

Details

Brand
K & W
Item Weight
2.5 Pounds
Liquid Volume
32 Fluid
Material
Copper
Package Information
Bottle

🔧Permanent bond strength

🧪Nanotech crack filler

🛡️2-year warranty protection

64724CFA

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Description

🛠️ Seal the deal with nanotech precision—never worry about leaks again!

COPPER INFUSED FORMULA - Enhances thermal conductivity and corrosion resistance
PERMANENT HARDENED SEAL - Creates a rock-solid bond that lasts, preventing future leaks
GENEROUS 32 FL OZ BOTTLE - Ample volume for multiple repairs or larger engine blocks
TRUSTED BRAND WITH WARRANTY - Backed by CRC’s 2-year manufacturer warranty for peace of mind
NANOTECHNOLOGY POWERED REPAIR - Fills microscopic cracks & crevices for unmatched durability

K&W 401232 Permanent Head Gasket & Block Repair uses advanced nanotechnology to penetrate and seal cracks that traditional products miss, forming a permanent, hardened bond. This 32 fl oz copper-infused liquid is designed for automotive repairs, offering enhanced durability and thermal performance, all backed by a 2-year manufacturer warranty.

Specifications

ASIN	B000M8NZ70
Best Sellers Rank	#383,011 in Automotive ( See Top 100 in Automotive ) #144 in Gasket Sealers
Brand Name	K & W
Container Type	Bottle
Customer Reviews	3.9 3.9 out of 5 stars (368)
Global Trade Identification Number	00078372012242, 00078372012327
Item Form	Liquid
Item Type Name	Automotive Accessories
Item Weight	2.5 Pounds
Liquid Volume	32 Fluid Ounces
Manufacturer	CRC
Material	Copper
Model Number	401232
Number of Items	1
Part Number	401232
Recommended Uses For Product	Automotive
Specific Uses For Product	Automotive repair
UPC	078372012327
Unit Count	32.0 Ounce
Warranty Description	2 YEAR MANUFACTURER WARRANTY

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Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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What is Desertcart? Is it safe to order from?+

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

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Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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64724CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

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TrustScore 4.5 | 7,300+ reviews

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