Will it stick to outdoor wood and is it paintable?

I believe it would stick to wood outdoors. I can't verify that it can be painted as I've never tried to paint it.

Would this work on an exterior chimney crown?

It worked on a brick in my kitchen so yes it would however you might want to try the Paste version as opposed to the spray. The stuff is wonderful. No house should be without it.

Will this product break down the composition of styrofoam?

Hey there. We don't recommend using Flex Seal Spray on a styrofoam surface as the spray will cause the styrofoam to melt when it comes in contact with the spray.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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Spray Rubber Sealant Coating, 14-Oz, Gray (2 Pack)

Product ID: 378015969

Details

Brand
Flex Seal
Item Weight
28 Ounces
Item dimensions L x W x H
13.2 x 6.6 x
Material
Rubber
Style
Compact

5769476₫

Duties & taxes included

In stock

Sold byAmazon VietnamDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

Review: As described. High price m - As described but overpriced Review: Good Product - Flex Seal Works Great - Flex Seal is great quality. It comes ready to use so mixability is easy to get started. It's a great price. The Flex Seal is very durable, looks great and clean up is easy so removal is easy. The product seems sturdy.

Specifications

ASIN	B00W5Y2X2W
Brand	Flex Seal
Brand Name	Flex Seal
Colour	Gray
Compatible Material	Rubber
Country of Publication	USA
Customer Reviews	4.5 out of 5 stars 1,078 Reviews
Global Trade Identification Number	00810129871937
Item Dimensions	13.2 x 6.6 x 22.9 Centimeters
Item Form	Spray
Item Weight	28 Ounces
Item dimensions L x W x H	13.2 x 6.6 x 22.9 Centimeters
Manufacturer Part Number	FSSLVD20
Material	Rubber
Material Type	Rubber
Model	FSGRYR20
Style	Compact
Style Name	Compact
UPC	810129871937
Water Resistance Level	Not Water Resistant

Reviews

M**T

As described. High price m

As described but overpriced

4.05.2026

C**D

Good Product - Flex Seal Works Great

Flex Seal is great quality. It comes ready to use so mixability is easy to get started. It's a great price. The Flex Seal is very durable, looks great and clean up is easy so removal is easy. The product seems sturdy.

20.02.2026

P**N

Great, the best of them all.

After using every other brand out there, on a multitude of projects.....Flex Seal is hands down the winner. Yeah, I know the cheesy ads on TV bothered me too. I always thought it wouldn't be worth my money too. I've gotta say it is legit great. This gray is your average gray, so it blends well. I am a believer, try it. You do need multiple coats, and it needs 3 days to actually cure pretty hard. The longer the cure, the tougher the coating will be out in the elements. Once it's cured, you have a UV tolerate item. It does fade slightly over time, but so does everything else. This is my opinion on this spray style, nothing else.

14.12.2025

B**D

Worked for cement water fountain

Good product but goes on thick, hard to get a even coat.

6.12.2025

N**O

Works ok

23.10.2025

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