Can this product be used to coat a concrete fishpond, i.e. for a fully immersed condition?

Yes Flex Seal Liquid can be used to coat a concrete fish pond. For best results sweep off the concrete to make sure there's no concrete dust and then apply. Let dry for 24-48 hours. Flex Seal Liquid is food grade safe, so your fish can swim around in it with no worries.

To what depth (thickness) can this be poured and still cure?

Flex Seal Liquid can be poured to any thickness desired. We recommend pouring in layers 1/4-1/2" thick to ensure the product cures completely. For a normal application Flex Seal Liquid takes 24-48 hours to completely cure.

When using a roller, what nap is best?

Which type of roller is best suited to apply flexseal liquid

How much area will 1 gallon cover?

1 Large 16oz - approx. 20Sq. Ft., 1 Jumbo 32oz - approx. 40Sq. Ft., 1 Gallon can - approx. 150Sq. Ft.

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

Help Track order

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Flex Seal Liquid, 1 Gallon, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

Product ID: 393013905

Details

Brand
Flex Seal
Item dimensions L x W x H
19.7 x 16.5 x
Item weight
9.25 Pounds
Material
Rubber
Style
Liquid Rubber

💧Waterproof sealant

☀️UV resistant durability

🛠️Flexible rubber coating

Description

💧 Seal it once, forget leaks forever!

RUST CORROSION DEFENSE - Protect metal surfaces by sealing out moisture and preventing deterioration over time.
UV CHEMICAL RESISTANCE - Built to withstand harsh sun exposure and corrosive elements for long-lasting performance.
MULTI SURFACE COMPATIBILITY - Perfect for roofs, basements, RVs, marine gear, masonry, and more—one product, endless fixes.
SEAMLESS WATERPROOF PROTECTION - Brush, roll, or pour on a watertight, flexible rubber barrier that stops leaks fast.
ULTIMATE FLEXIBILITY BREATHABILITY - Expands and contracts with surfaces to prevent cracks and maintain a perfect seal.

Flex Seal Liquid is a clear, 1-gallon liquid rubber coating designed for professional-grade waterproofing and sealing. Its flexible, breathable formula resists UV rays and chemicals, making it ideal for diverse applications including roofs, campers, marine equipment, and masonry. Easy to apply by brushing, rolling, dipping, or pouring, it creates a durable, rust-preventing barrier that keeps moisture and air out, ensuring long-lasting protection.

Specifications

ASIN	B019QNK9RA
Best Sellers Rank	#114,043 in Automotive ( See Top 100 in Automotive ) #384 in Automotive Fillers, Adhesives & Sealants #766 in Hardware Sealers
Brand Name	Flex Seal Liquid
Color	Clear
Compatible Material	Metal
Customer Reviews	4.5 4.5 out of 5 stars (651)
Included Components	Flex Seal Liquid Rubber in a Can, 1-gal, Clear
Item Dimensions	19.7 x 16.5 x 16.5 centimeters
Item Form	Liquid
Item Type Name	Flex Seal Liquid Rubber Can, 3.8 L, Transparent
Item Weight	9.25 Pounds
Manufacturer	Swift Response, LLC
Material Type	Rubber
Model	US855CLR01
Number of Items	1
Number of Packs	1
Part Number	LFSCLRD01BC
Style Name	Liquid Rubber
Surface Recommendation	Tile
UPC	853517006337
Unit Count	3785.41 Milliliters
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.

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TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

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Smooth transaction and product arrived in perfect condition.

3 weeks ago

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