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.

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

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

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

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

💧Waterproof & dries underwater

🖌️Fully paintable & UV resistant

🛠️Super thick, fills large gaps

R2040

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

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Description

🛠️ Seal it. Paint it. Forget leaks forever.

SEAL LIKE A PRO - Creates a flexible, watertight rubberized barrier that blocks air, water, and moisture.
PAINT IT YOUR WAY - Once cured, paint over it seamlessly to match any surface and protect against UV damage.
MULTI SURFACE MASTER - Works on concrete, drywall, EPDM, metal, wood, and more—ideal for indoor & outdoor projects.
STAY FRESH CONTAINER - Innovative airtight packaging locks in freshness to maximize product lifespan and minimize waste.
UNDERWATER APPLICATION - Unique formula cures even when applied underwater—perfect for tough, wet repairs.

Flex Paste is a premium waterproof, paintable putty designed to fill large gaps, cracks, and holes across multiple surfaces. Its thick rubberized formula seals out water, air, and moisture, curing even underwater to form a durable, UV-resistant barrier. Packaged in an airtight container to maintain freshness, it’s perfect for professional-grade repairs on walls, roofs, RVs, and more.

Specifications

ASIN	B084TDDCWW
Best Sellers Rank	#12,815 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #47 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 (6,067)
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 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.

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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.

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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

Ali H.

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

1 day ago

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

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R2040

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered 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 South Africa.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Rajesh P.

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

2 days ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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