Would flex tape/spray work on a leaky radiator?

Thank you for reaching out! Flex Seal Spray has not been tested on this type of application, it is not made to withstand extreme heat or pressure. Flex Tape however will function in temperatures from -70º – 200ºF. Lucas - Customer Care at Flex Seal Products (Swift Response The makers of Flex Seal)

how much coverage is in one 14oz can

I don’t know. I aborted my project after it started melting away.

Is the spray good to use in a dish washer with hot water. To be used on dish racks

Flex Seal is not FDA approved and should not be used around items that will be exposed to things you will be eating/drinking out of.

Will this stick to galvanized metal / steel ... ??? Thanks ,,!!

It didn’t work as advertised for me. I’d talk to my helpful Hardware Man…

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14 oz, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

Product ID: 92976181

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Details

Material
Rubber
Brand
Flex Seal
Style
Item Weight
14 Ounces
Item dimensions L x W x H
9.5 x 2.5 x

💧14 oz waterproof sealant

🌡️Temperature resistant

🛠️Flexible rubberized coating

Description

🛡️ Seal the Deal with Flex Seal!

PAINT IT YOUR WAY - Once dry, customize with any color for a seamless finish.
WEATHER THE STORM - Resilient against extreme temperatures—no sagging or cracking.
CRAFT YOUR PROTECTION - Perfect for DIY projects, arts, and crafts.
VERSATILE APPLICATION - Ideal for gutters, RVs, roofs, and more.
SEAL IT DONT STRESS IT - Instantly stop leaks with a durable, watertight seal.

Flex Seal is a 14 oz waterproof rubber spray-on sealant that instantly stops leaks and protects surfaces. It dries to a flexible, rubberized coating that can be painted any color, making it perfect for a variety of applications including gutters, RVs, and roof repairs. Its unique formula ensures it remains pliable in extreme temperatures, providing long-lasting protection against corrosion and wear.

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