Could you do several layers or one very thick layer to create a rubberized coating on something?

Absolutely, just please remember that the thicker the final coating is, the longer the cure time will be. We highly advise creating the coating by adding layers to the surface rather than just one thick coat.

Any temperature requirement?

Flex Paste can be applied in a wide range of temperatures from 0°F – 150ۜ°F. Once applied and fully cured it can withstand a wider range of temperatures from -40°F – 200°F.

Can this be used to fix crack in small ref/frezer

Hi there. Thank you so much for reaching out. Flex Paste can withstand low temps like that in a freezer. Although some customers have found success with similar applications, it has not been tested for its safety when coming in contact with items used for food preparation, storing, or serving. Please contact us if you have any additional questions. We're always happy to help. Flex On!

can flex paste be painted ?

Yes. Must be fully cured before painting.

We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Our Other Brands:Hewyn|Selfship

We remain fully operational. Our teams are working around the clock to ensure your deliveries continue safely.

DOWNLOAD THE APP

WE SOURCE ITEMS FROM

UAE
UK
India
USA
Japan

Customer Services

About Us

Customer Support

Our Other Brands:Hewyn|Selfship

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, Black, 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, Black, Quart

Product ID: 225321582

Details

Brand
Flex Paste
Item Weight
3 Pounds
Item dimensions L x W x H
5 x 4.25 x
Material
Rubber
Style
3 lb Black

🎨Fully paintable & UV resistant

💧Waterproof & dries underwater

🛠️3 lb super thick rubber paste

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

737 kr

Duties & taxes included

In stock

Sold byAmazon DenmarkDelivered 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 Denmark.

Secure transaction

Description

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

SEAL LIKE A PRO - Creates a flexible, watertight rubberized barrier that blocks air, water, and moisture.
MASSIVE GAP FILLER - Super thick paste instantly fills large cracks, holes, and gaps with no sag or drip.
CUSTOM FINISH READY - Once cured, paint over it seamlessly to match any surface and protect against UV and corrosion.
FRESHNESS LOCKED IN - Innovative airtight container keeps paste fresh and ready, eliminating waste.
UNDERWATER APPLICATION - Unique formula allows application and curing even underwater—no project too wet.

Flex Paste is a premium 3 lb black rubberized putty designed for professional-grade sealing and repairs. Waterproof and UV resistant, it forms a flexible barrier that blocks air, water, and moisture, even curing underwater. Its thick consistency fills large gaps and cracks instantly, while the airtight container ensures long-lasting freshness. Fully paintable and compatible with a wide range of materials, Flex Paste is the go-to solution for walls, roofs, RVs, concrete, and more—delivering durable, clean, and customizable repairs made in the USA.

Specifications

ASIN	B084TDDCWW
Best Sellers Rank	#14,877 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #65 in Hardware Sealers
Brand Name	Flex Paste
Color	Black
Compatible Material	Wood, Glass, Tile, Concrete, Aluminum, Metal, Brick, Stucco, Masonry, Copper, Fabric, Fiberglass, Ceramic, Porcelain, Natural Stones, Roofing, Pvc, Eifs, Cspe, Epdm, Hypalon Polyurethanes
Customer Reviews	4.0 4.0 out of 5 stars (6,016)
Included Components	Household Item
Item Dimensions	5 x 4.25 x 4.25 inches
Item Form	Paste
Item Type Name	Flex Paste 3 lb Tub (Black)
Item Weight	3 Pounds
Manufacturer	Swift Response, LLC
Material Type	Rubber
Model	FLEX SEAL - PFSBLKR32 - BLACK
Number of Items	1
Part Number	PFSBLKR32
Style Name	3 lb Black
Surface Recommendation	Windows,Doors,Tub
UPC	850010226811
Unit Count	48.0 Ounce
Warranty Description	1 Year Limited
Water Resistance Level	Waterproof

Common Questions

Are the products genuine and authentic?+

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.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

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

Rajesh P.

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

2 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.