Can you use this Flex seal too caulk around your window frames? (more like a insulation)?, or stop a small draft creeping thru your window pane?

I'm sure you can. I have a waterwheel and trough. I sealed the trough, as it was leaking in several places. Even though water runs rapidly down the trough, I've had no leaking now for 2 years. I also used it to seal a leak on my ATV tir rim. The rim had a slight curve and wouldn't hold air. I sealed the sot that was leaking and it worked perfectly.

I have a leak in my car trunk, can this be used?

It really depends on why there is a leak, but probably not. If it's the weather stripping around the trunk (that rubber tubing stuff), I doubt that this stuff will replace or repair that. That's the most likely reason you have a leak. The seal needs replacing.

Can it be used on concrete?

Yes you can use Flex Seal on concrete.

I would like to use this to refinish and seal up a mobile home bathtub. Does it clean easily? Will it hold up to the constant use of a bathtub?

It will definitely seal and refinish the tub. I’m not sure about easy clean up as I only used it on a boat but it should clean up nicely as it seems to be self leveling spray and is very smooth when completely cured

Flex Seal Spray Rubber Sealant Coating 14 Oz Clear 2

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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C$8524

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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

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Description

🛡️ Seal the deal, stop the leaks, and flex your fix-it skills!

CUSTOMIZABLE FINISH - Clear coat can be painted any color, blending seamlessly with your style or project needs.
DURABILITY THAT LASTS - Remains pliable for years without cracking, peeling, or sagging—even in extreme temperatures.
VERSATILE APPLICATION - Ideal for roofs, windows, wood, and even arts & crafts projects—protects against corrosion on wet or dry surfaces.
EFFORTLESS LEAK SOLUTION - Stop leaks fast with a simple spray—no mess, no fuss, just reliable protection.
SEAL PROTECT INSTANTLY - Sprays on thick liquid rubber that seeps into cracks and dries fast to a watertight, flexible coating.

Flex Seal Spray Rubber Sealant Coating is a 14-oz clear dual pack of liquid rubber that sprays on thick to seal cracks and holes. It dries to a flexible, waterproof coating that resists heat, cold, corrosion, and weathering. Perfect for quick, durable repairs on a variety of surfaces, it can be painted over for a custom finish, making it the go-to solution for professionals and DIYers alike.

Specifications

ASIN	B00L3MDI0I
Best Sellers Rank	#135,013 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #690 in Hardware Sealers
Brand	Flex Seal
Brand Name	Flex Seal
Color	Clear
Compatible Material	Rubber
Customer Reviews	4.4 out of 5 stars 6,756 Reviews
Global Trade Identification Number	00810129871340
Included Components	Flex Seal Spray Rubber Sealant Coating, 14-oz, Clear (2 Pack)
Item Dimensions	24.1 x 6.4 x 6.4 centimeters
Item Form	Spray
Item Type Name	Flex Seal Spray Rubber Sealant Coating, 14-oz, Clear (2 Pack)
Item Weight	14 Ounces
Item dimensions L x W x H	24.1 x 6.4 x 6.4 centimeters
Item weight	14 Ounces
Manufacturer	Swift Response, LLC
Material	Rubber
Material Type	Rubber
Model	FSCL20
Number of Items	2
Part Number	FSCL20
Style	FSCLRR20-A-2PK
Style Name	FSCLRR20-A-2PK
Surface Recommendation	Roof,Windows,Wood
UPC	810129871340
Unit Count	28 Milliliters
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

H**Y

Not good

6.01.2023

C**Z

La calidad del producto y su eficiencia.

Lo use para cerrar una grieta en la pared pequeña y fue muy util.

16.11.2024

D**.

Bueno

Hasta el momento ha cumplido con mis expectativas

17.02.2019

A**Y

It really works well.

This stuff really works, I used it on a big cement water fountain that was no longer holding water, it holds water again, good stuff.

27.06.2026

G**G

Protective for outdoor items

I've used the clear coating a couple of times on my outdoor lawn wagon to protect from the elements and other items that might sit out in the weather occasionally. It really helps keep them from rusting, scratching & deteriorating as quickly so it's worth it for me.

10.05.2026

D**G

No mess

Works as advertised

20.06.2026

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

Meera L.

Smooth transaction and product arrived in perfect condition.

3 weeks ago

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C$8524

Duties & taxes included

In stock

Sold byAmazon NicaraguaDelivered 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 Nicaragua.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Ali H.

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

1 day ago