Can i use this to seal the bottom of camping trail made of plywood would it make the bottom water proof to the road conditions?

Hi there. Thank you so much for reaching out with your question. Yes, Flex Seal Liquid will effectively coat and seal the bottom of the trailer and protecting it from water. However, road conditions may require you to reapply coats from the wear and tear put through time. Please let us know how it turns out for you. Please message us with any other questions. We're always happy to help.

Can this be used to repair a spring box?

Thank you for reaching out! We have not tested Flex Seal Liquid for this type of application. Lucas - Customer Care at Flex Seal Products (Swift Response - The makers of Flex Seal Liquid)

Will it it hold a little crack on the thread of water tank causing pressure lost?

Hi there, great question! We cannot guarantee that Flex Seal Liquid will hold on the crack due to the fact that it is not meant to withstand high PSI.

Can this be used to repair cracking finish on metal garden posts?

Yes. Keep in mind it’s rubber so apply accordingly

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

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Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 32 oz

Flex Seal Liquid, Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry, Black, 32 oz

Product ID: 395531373

Details

Brand
Flex Seal
Item dimensions L x W x H
12.1 x 10.8 x
Item weight
2 Pounds
Material
Rubber
Style
Liquid Rubber

🌞UV Resistant for Long Life

💧100% Waterproof Seal

🛠️Flexible Rubber Coating

R3904

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

Description

🛡️ Seal the deal with Flex Seal Liquid — your ultimate waterproof armor!

UV CHEMICAL DEFENSE - Protect your surfaces from sun damage and corrosive elements with advanced UV and chemical resistance.
VERSATILE APPLICATION - Perfect for roofs, basements, RVs, trailers, marine gear, and more—adaptable to multiple surfaces including EPDM and masonry.
RUST PROOF YOUR ASSETS - Prevents rust and corrosion, extending the life of your vehicles and outdoor equipment effortlessly.
SEAMLESS WATERPROOF BARRIER - Brush, roll, dip, or pour on a watertight, flexible rubberized shield that stops leaks fast.
FAST COVERAGE LASTING PROTECTION - Goes on smooth and dries quickly, delivering durable, breathable protection that professionals trust.

Flex Seal Liquid is a premium black rubber coating sealant designed for professional-grade waterproofing and protection. Its flexible, breathable formula creates a durable barrier against water, UV rays, rust, and chemicals. Ideal for diverse applications from roof repairs to marine and automotive use, this 32 oz liquid rubber can be brushed, rolled, dipped, or poured for fast, reliable sealing on multiple surfaces.

Specifications

ASIN	B01GFYA5IG
Brand	Flex Seal Liquid
Brand Name	Flex Seal Liquid
Color	Black
Compatible Material	Rubber
Customer Reviews	4.5 out of 5 stars 554 Reviews
Global Trade Identification Number	00853517006290
Included Components	LFSBLKR32
Item Dimensions	12.1 x 10.8 x 10.8 centimeters
Item Form	Liquid
Item Type Name	LFSBLKR32
Item Weight	2 Pounds
Item dimensions L x W x H	12.1 x 10.8 x 10.8 centimeters
Item weight	2 Pounds
Manufacturer	SWIFT RESPONSE LLC
Material	Rubber
Material Type	Rubber
Model	LFSBLKR32
Number of Items	1
Number of Packs	1
Part Number	LFSBLKD32BC
Style	Liquid Rubber
Style Name	Liquid Rubber
Surface Recommendation	Floor, Wall, Window, Countertop, Tile
UPC	853517006290
Unit Count	1 Count
Water Resistance Level	Waterproof
Water resistance level	Waterproof

Reviews

D**H

Works as advertised!!!

I use it to seal cracks in asphalt and between asphalt and concrete around my house. Also on my roof and around the chimney. I have used it to rust proof areas on vehicles. This stuff is the best i have ever found to do these jobs! I only wish they made it in a squeeze applicator. I will definitely purchase again.

14.08.2026

W**D

Roof seal, etc

Easy to order and stopped leaks

21.08.2026

M**N

Great product!

Product worked great for two applications (water fountain and bird bath). I had previously tried the spray without luck. The liquid was a great solution with plenty left for the next project!

25.06.2026

C**.

It's expensive

Use it.

3.07.2026

H**I

Worked very well and sealed the lap seams on my aluminum trailer roof.

Great product. Sealed an aluminum seam trailer roof and no leaks.

23.06.2026

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.

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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

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

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