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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Flex Seal, 14 oz, 4-Pack, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

Flex Seal, 14 oz, 4-Pack, White, Stop Leaks Instantly, Waterproof Rubber Spray On Sealant Coating, Perfect for Gutters, Wood, RV, Campers, Roof Repair, Skylights, Windows, and More

Product ID: 31879156

Details

Brand
Flex Seal
Item Weight
14 ounces
Item dimensions L x W x H
9.5 x 2.5 x
Material
Liquid
Style

💧Instant waterproof seal

🌡️Heat & cold resistant

🛠️Flexible, durable rubber coating

€ 175.00

Duties & taxes included

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Description

💧 Seal it. Protect it. Flex your fix like a pro.

PAINTABLE FINISH - Customizable white coating can be painted to match any surface
SEAL LEAKS INSTANTLY - Stops leaks on contact for immediate peace of mind
MULTI SURFACE MASTERY - Perfect for gutters, roofs, wood, RVs, windows, and more
ALL WEATHER PROTECTION - Withstands extreme heat and freezing cold without sagging or peeling
FLEXIBLE LONG LASTING - Rubberized coating stays pliable for years without cracking

Flex Seal 14 oz 4-pack is a versatile, waterproof rubber spray sealant that instantly stops leaks and forms a flexible, durable coating. Ideal for multiple surfaces including gutters, wood, roofs, and RVs, it resists extreme temperatures and can be painted once dry, making it the go-to solution for fast, long-lasting repairs.

Specifications

ASIN	B01AKPHYCQ
Best Sellers Rank	#571,235 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #1,551 in Hardware Sealers
Brand Name	Flex Seal
Color	White
Compatible Material	Asphalt, Metal, Polyvinyl Chloride
Customer Reviews	4.5 4.5 out of 5 stars (418)
Included Components	Flex Seal Spray Rubber Sealant Coating, 14-oz, White (4 Pack)
Item Dimensions	9.5 x 2.5 x 2.5 inches
Item Form	Liquid, Spray
Item Weight	14 ounces
Manufacturer	Swift Response, LLC
Material Type	Liquid
Model	8542053263
Number of Items	4
Part Number	FSWHTR20-4
Style Name	FSWHTR20-M-4PK
Surface Recommendation	Roof,Windows,Wood
Unit Count	56 Ounce
Water Resistance Level	Waterproof

Common Questions

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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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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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

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

5 days ago

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Best international shipping I've ever tried. Worth every penny!

3 days ago

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€ 175.00

Duties & taxes included

In stock

Sold byAmazon SpainDelivered 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 Spain.

Secure transaction

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Fast, free shipping, member pricing & priority support.

Join PRO →

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TrustScore 4.5 | 7,300+ reviews

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Very reliable shop with genuine products. Will definitely buy again!

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