Updated: June, 2025

Best liquid roof sealants

Save up to 19% Off

1

EverBond

9.8

Exceptional

RV Roof Coating - Liquid Rubber RV Roof Sealant for Camper Roofs, Trailers, Motorhomes, and Metal Buildings - Roof Cooling White 4.75 Gallon

Why we love it

Flexible and weatherproof seal.

Covers various surfaces effectively.

Smooth, easy application.

Main highlights

Revolutionary Stretch and Seal Technology
Everbond's formula offers 1000% flexibility, ensuring a durable, weatherproof seal that adapts to roof movements.

Versatile Application Across Surfaces
Ideal for RVs, trailers, metal buildings, and more, providing long-lasting protection and easy application.

Easy Application and Coverage
Customers praise its smooth application and extensive coverage, making it a favorite for RV roof repairs.

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How do we rank?

How do we rank
Our AI-powered platform ranks products using multiple weighted factors from millions of products and user reviews across the web, providing the most valuable and real data. Higher scores rank first.
2

EverBond

9.7

Exceptional

Liquid Rubber Waterproof Sealant - Rubber Paint - All Surface Leak Repair Indoor and Outdoor Flexible Roof Sealant, Water-Based, Easy to Apply, Original Black, 4.75 Gallon

Main highlights

WATERPROOF BARRIER PROTECTION For flat roofs, metal roofs, sloped roofs, planter boxes, foundations, sheds, basements, and will adhere to variety of materials including metal, wood, and concrete, and more. Everbond Waterproof Coating offers unparalleled sealing and protection.

EXTREMELY FLEXIBLE & LONG-LASTING - The completed membrane boasts an impressive elongation capacity of over 1000%, ensuring it prevents failure due to loss of adhesion. Additionally, it is UV stable, offering resistance against degradation from sunlight exposure.

COVERAGE DETAILS: For vertical surfaces, one gallon covers up to 30 square feet (2.8 square meters), requiring 3-4 heavy applications to form a 30 mil (0.76 mm) thick membrane. On flat or ponding surfaces, a gallon extends to 15 square feet (1.4 square meters), with 4-5 heavy layers needed to create a robust 60-80 mil (1.5-2 mm) membrane.

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3

Liquid Rubber

9.6

Exceptional

Liquid Rubber Waterproof Sealant – DIY Leak Repair Coating for Flat, Metal & Low Slope Roofs, Foundations, Gutters & More – Flexible Protective Membrane - Black - 1 Gallon

Why we love it

Long-lasting and UV stable.

Suitable for various surfaces.

Highly effective waterproofing.

Main highlights

Highly Flexible and Durable
The final membrane has over 1000% elongation and is UV stable, ensuring long-lasting protection.

Versatile Application
Ideal for flat roofs, metal roofs, planter boxes, and more, suitable for both indoor and outdoor use.

Effective Waterproofing
Customers praise its thick application and excellent sealing capabilities, preventing leaks effectively.

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4

Gorilla

9.4

Excellent

Gorilla Patch & Seal Liquid Rubber Waterproof Sealant, Black, 32 Ounce (Pack of 1) - Seals Out Water, Air, and Moisture

19% Off

Why we love it

Seals water, air moisture

Easy to apply paintable

Temperature UV resistant

Main highlights

Key Features
Seals water, air, and moisture with a flexible, rubberized coating. Easy to apply, temperature and UV resistant, and paintable.

Ideal Use Cases
Perfect for roofs, gutters, skylights, PVC joints, and RVs. Great for exterior DIY projects needing a watertight seal against the elements.

Customer Reviews
Highly praised for its effectiveness in stopping leaks and durability over time, particularly on roofs and gutters.

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5

Liquid Rubber

9.3

Excellent

Liquid Rubber RV Roof Sealant- Professional-Grade Solar Reflective Flexible Waterproof Membrane Coating for EPDM, TPO, Fiberglass & Aluminum Camper & Travel Trailers- Brilliant White, 1 Gallon

11% Off

Why we love it

Environmentally friendly and safe.

Easy application like painting.

Effective, versatile protection.

Main highlights

Flexible and UV Resistant
Offers solar reflective, cool roof protection with over 1000% elongation, preventing adhesion failure and UV degradation.

Versatile Application
Ideal for RV roofs, metal roofs, campers, trailers, and more, providing a protective sealant across various surfaces.

Ease of Application Praised
Customers appreciate the easy application process using brush, roller, or sprayer, with positive feedback on performance.

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6

Wadities

9.0

Excellent

Waterproof Sealant Clear 2L(70 oz), Wadities Wall Bathroom Roof Water-Based Waterproof Coating, Invisible Repairing Leak Seal Liquid Rubber Sealant for Indoor & Outdoor

16% Off

Main highlights

[UV & Cold Resistance]: Wadities Waterproof Sealant is UV stabilized and will not break down from UV exposure in summer heat. Our Waterproof Anti-Leakage Agent will not crack or peel in the cold winter months. It is an effective sealing repair agent. It can immediately and effectively seal pipeline leaks in walls, ceilings, roofs, window sills, and other areas.

[Efficient waterproof]: Our Transparent Waterproof Glue products are are durable and can fix various water leakage issues. This is a formula based on water and rubber that can penetrate joints, cracks, and leaks and seal any cracked surfaces. It has strong adhesion and sealing effect, immediate effect, lasting for many years.

[Easy to Operate]: Apply by roller or brush above 10°C/50°F (including overnight temperatures). Apply evenly to ensure coverage and penetration into the cracks, and play a sealing role. For good waterproofing, 2-3 coats are required. Allow to dry to the touch with no moisture underneath before applying the next coat. A waterproof layer can be formed after 48-72 hours, and the waterproof layer will become stronger over time.

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7

BEEST

8.9

Very Good

BEEST Liquid Rubber Waterproof Sealant Black, 1 Gallon Covers up to 25-35 Sq ft| Roof Sealant Waterproof Coating for Indoor & Outdoor Leak Repair| Easy to Apply Waterproofing Foundation Sealer

Main highlights

Coverage Guidelines: For vertical surfaces, 1 gallon covers approximately 35 sq ft (2.8 sq m) with 3-4 heavy coats to achieve a 30 mil (0.76 mm) membrane. For flat or ponding surfaces, 1 gallon covers approximately 25 sq ft (1.4 sq m) with 4-5 heavy coats to achieve a 60-80 mil (1.5-2 mm) membrane.

CONTRACTOR-GRADE WATERPROOF COATING: BEEST Waterproof Sealant creates an impenetrable barrier against water, providing ultimate damp-proofing and waterproofing for your surfaces. Its permanent bond and vapor barrier properties ensure your protection against moisture, making it the perfect waterproof coating for almost any job.

BUILT FOR EXTREME CONDITIONS: Our sealant is an ultra low VOC, heavy-duty asphalt emulsion infused with polymers. This unique formula ensures resilience against harsh temperatures, weather challenges, and vibrations, providing unwavering waterproof confidence in any situation. Its liquid rubber application dries to a tough, flexible, and UV-stable finish, making it the ideal choice for waterproofing projects indoors and outdoors.

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8

Liquid Nails

8.6

Very Good

Liquid Nails Roof Repair (RR808), 10.3 oz

Why we love it

Seals leaks effectively in all weather conditions.

Easy to apply and work with.

Long-lasting durability against severe weather.

Main highlights

Seals Leaks in All Weather
This product is designed to seal leaks effectively in all weather conditions, providing a waterproof bond and preventing ice/water damage with extended outdoor durability.

Ideal for Roof Repairs
Perfect for sealing vents, repairing asphalt shingles, and fixing flashing; works well in various weather conditions, including temperatures in the 40sF.

Ease of Use and Effectiveness
Customers frequently praise the product for its ease of application, effective sealing properties, and flexibility in various weather conditions.

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9

Liquid Rubber

8.5

Good

Liquid Rubber Silicone Roof Coating - UV-Reflective, No Primer Needed, One-Coat Sealant for Flat, Sloped, Metal, Wood, Concrete, EPDM, and TPO Roofs, White, 1 Gallon

Why we love it

Versatile for different roof types.

Durable and UV stable.

Safe for indoor and outdoor use.

Main highlights

Multi-Use Roof Sealant
Effective on flat, sloped, metal, wood, and concrete roofs.

Ideal for Touch-Ups
Perfect for post-winter touch-ups and sealing problem areas.

Praised for Easy Application
Goes on smoothly and dries without imperfections.

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10

Flex Seal Liquid

8.4

Good

Flex Seal Liquid, 16 oz, Clear, Liquid Rubber Coating Sealant, Waterproof, Flexible, Breathable, and UV Resistant, Roof Repair, Basements, RV, Campers, Trailers, Marine, EPDM, Masonry

Main highlights

Use anywhere you need a watertight, flexible rubberized coating

Goes on smooth and covers fast, sealing out water, air and moisture

Flex Seal Liquid is liquid rubber in a can! Now you can brush, roll, dip or pour it on!

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Our top pick

1

RV Roof Coating - Liquid Rubber RV Roof Sealant for Camper Roofs, Trailers, Motorhomes, and Metal Buildings - Roof Cooling White 4.75 Gallon
The Everbond RV Roof Coating is a top-tier liquid rubber waterproof sealant designed for RVs, trailers, and metal buildings. Its revolutionary stretch and seal technology offers 1000% flexibility, ensuring a robust and weatherproof seal that adapts to your roof's movements, preventing leaks and damage. This versatile product is perfect for various surfaces, including TPO roofs, gutters, and more, providing long-lasting protection. Customers consistently praise its easy application process, noting that it covers surfaces smoothly and extensively, making it an ideal choice for both DIY enthusiasts and professionals. With a high concentration of solid materials and a tensile strength of 450 psi, Everbond guarantees superior performance and durability. Its eco-friendly, low VOC formulation dries quickly, allowing for efficient project completion. Whether you're safeguarding your RV or reinforcing a metal structure, Everbond offers a reliable and effective solution, backed by a lifetime guarantee against product failure.

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