Can this be used on flexible surfaces?

Depends on how flexible. It has to be able to adhere to the surface. It cures the same as rubber in a tire. There is some give.

Hello there. That's an excellent question. Flex Paste can be applied to dry or wet surfaces and even underwater. It does not dissolve, creating a watertight seal. Thank you very much for reaching out to us with your question. Please write to us anytime. We're always happy to help. Flex On!

Flex seal pasta can it be used on curved surfaces?

Yes it can be used on any curved and even upside down surface but if ordering on-line, if you open the can and the edges are turning hard return it ASAP because chances is it's hard on bottom as-well and you don't get your money worth

Can I use in a in ground swimming pool to repair a crack

Yes, it can be applied underwater. It won’t dissolve or wash away. It even dries underwater! Flex Paste is easy to use. With a putty knife, trowel, spatula, roller, or stiff brush remove a smooth even layer of material from the top of the tub. Scooping deeply into the tub may cause air pockets which can dry FLEX PASTE. Apply a generous amount using a smooth sweeping motion.

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Flex Paste Rubberized Waterproof Sealant Paste, Black, Half-Quart, 1-Pack

Flex Paste Rubberized Waterproof Sealant Paste, Black, Half-Quart, 1-Pack

Product ID: 368440065

Details

Brand
Flex Paste
Item Weight
1 Pounds
Item dimensions L x W x H
10.8 x 10.8 x
Material
Resin
Style
Compact

🌊Dries underwater, works underwater

🎨Fully paintable & UV resistant

🛡️Rubberized waterproof barrier

€ 94.02

Duties & taxes included

In stock

Sold byAmazon AustriaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Seal it, save it, style it — the ultimate fix for every crack and crevice!

CUSTOM FINISH - Once cured, paint it any color to match your project while preventing rust, corrosion, and UV damage.
SEAL LIKE A PRO - Penetrates deep to block air, water, and moisture with a flexible, watertight rubberized layer.
STAY FRESH TECH - Innovative container locks out air to keep sealant fresh and potent—no waste, no hassle.
UNDERWATER READY - Apply and cure even underwater—perfect for emergency fixes and tough environments.
GAP FILLER EXTRAORDINAIRE - Super thick paste instantly fills large cracks, holes, and gaps for durable repairs.

Flex Paste Rubberized Waterproof Sealant Paste is a super thick, black rubberized sealant that penetrates deep to create a flexible, watertight barrier. It works underwater, fills large gaps instantly, and comes in a stay-fresh container to maximize shelf life. Fully paintable and UV resistant, it’s ideal for indoor and outdoor repairs on roofs, RVs, concrete, and more—made in the USA and ASTM C-920 certified for professional-grade performance.

Specifications

ASIN	B084TDS8S5
Best Sellers Rank	#81,618 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #365 in Hardware Sealers
Brand Name	Flex Paste
Colour	Black
Compatible Material	Diy
Customer Reviews	3.8 3.8 out of 5 stars (3,167)
Included Components	Household Item
Item Dimensions	10.8 x 10.8 x 6.4 Centimeters
Item Form	Paste
Item Highlight	Super thick rubber paste, fills gaps, cracks, holes, works underwater, paintable, UV resistant, walls, drywall, roof, RV
Item Type Name	Flex Paste 1 lb Jar (Black)
Item Weight	1 Pounds
Manufacturer	Swift Response, LLC
Manufacturer Part Number	PFSBLKR16
Material Type	Resin
Model	FLEX SEAL - PFSBLKR16 - BLACK
Number of Items	1
Style Name	Compact
Supported Standards	ASTM C-920
Surface Recommendation	Windows,Doors
UPC	850010226804
Unit Count	473.18 Milliliters
Water Resistance Level	Waterproof

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