What color is this when cured?

This is white. Hope that helps and thanks for your interest in our marine sealant.

can I use this to repair a crack in my hot tub? Is it safe for continual underwater use?

Yes it is safe for continued underwater use but you will want to make sure it completely cures and dries prior to submerging it. Hope that helps and thanks for your interest in Better Boat

How many Ounces is in a container

Don’t have it in front of me, but it is the size of a normal tube of caulk and will fit into a standard caulk gun.

Will this work around my stainless steel fuel tank filler neck

Yes our marine sealant will absolutely seal and adhere to your stainless steel neck. Thanks so much for your interest in our marine sealant.

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🚤 Seal it once, sail forever – the ultimate marine fix!

FAST CURING PAINTABLE - White cure formula sands smooth and accepts paint unlike silicone
FLEXIBLE WEATHERPROOF - Expands, contracts, and bends with changing conditions without cracking
TRUSTED AMERICAN QUALITY - Made in the USA with over 500,000 satisfied boaters
HEAVY DUTY WATERPROOF SEAL - Stops leaks above & below waterline with superior strength
MULTI SURFACE COMPATIBILITY - Adheres securely to fiberglass, metal, wood, glass, and plastic

Better Boat Marine Sealant is a premium, elastomer-based, waterproof adhesive designed for marine and RV use. It forms a flexible, permanent bond that resists UV rays, saltwater, and weather extremes. Compatible with multiple surfaces, it cures fast to a white finish that can be sanded and painted, making it ideal for sealing seams, ports, windshields, and more. Proudly made in the USA, it’s trusted by over half a million boaters for reliable, long-lasting repairs.

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.

R1306

Duties & taxes incl.

South Africastore

Free Returns

30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

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Color	White
Material Type	Elastomer
Batteries Included?	No
Brand	Better Boat
Manufacturer	Better Boat
Item model number	BB-MRSL-WHT
Package Dimensions	28.7 x 5.08 x 5.08 cm; 272 g
ASIN	B07V5QDLR4

Better BoatMarine Sealant and Adhesive Waterproof Marine Grade Sealant for and RV - White 10oz

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