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, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Half-Quart

Flex Paste, Waterproof Paintable Putty, Spackle Sealant, Fill Gaps Cracks Holes - Block Out Water and Air - UV Resistant - Walls, Drywall, EPDM, Concrete, Roof, RV Repairs, White, Half-Quart

Product ID: 214989979

Details

Brand
Flex Paste
Item Weight
16 ounces
Item dimensions L x W x H
4.25 x 4.25 x
Material
Rubber
Style
1 lb White

🎨Fully Paintable After Cure

💪Super Thick, Flexible Rubber Paste

🛡️Waterproof & UV Resistant Seal

¥6398

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

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Description

🛠️ Seal it. Paint it. Forget it. The ultimate fix for every crack and crevice.

SEAL LIKE A PRO - Blocks air, water, and moisture with a durable rubberized barrier that lasts.
FILL BIG FIX FAST - Super thick formula clings instantly to fill large gaps, cracks, and holes with ease.
CUSTOM FINISH READY - Paint over once cured to match your style and protect against rust and corrosion.
VERSATILE RELIABLE - Ideal for walls, roofs, RVs, concrete, and more—trusted by DIYers and pros alike.
UNDERWATER APPLICATION - Apply and cure even underwater—perfect for emergency fixes anytime, anywhere.

Flex Paste is a premium waterproof, paintable putty designed to fill and seal gaps, cracks, and holes across multiple surfaces including drywall, concrete, and metal. Its thick, flexible rubber formula blocks air and water, cures underwater, and resists UV damage. Packaged in an innovative stay-fresh container, it ensures long-lasting sealing power with zero waste. Perfect for professional-grade repairs on roofs, RVs, and more, Flex Paste combines durability with a paintable finish for seamless, lasting results.

Specifications

ASIN	B084TDJLKT
Best Sellers Rank	#12,545 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #48 in Hardware Sealers
Brand Name	Flex Paste
Color	White
Compatible Material	Aluminum, Ceramic, Glass, Metal, Polyvinyl Chloride, Wood
Customer Reviews	4.0 4.0 out of 5 stars (6,068)
Included Components	Household Item
Item Dimensions	4.25 x 4.25 x 2.5 inches
Item Form	Paste
Item Type Name	Flex Paste 1 lb Jar (White)
Item Weight	16 ounces
Manufacturer	Swift Response, LLC
Material Type	Rubber
Model	FLEX SEAL - PFSWHTR16 - WHITE
Number of Items	1
Number of Packs	1
Part Number	PFSWHTR16
Style Name	1 lb White
Surface Recommendation	Roof
UPC	850010226835
Unit Count	16 Ounce
Warranty Description	1 Year Limited
Water Resistance Level	Waterproof

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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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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.

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¥6398

Duties & taxes included

In stock

Sold byAmazon JapanDelivered 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 Japan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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