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.

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

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

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

Product ID: 391095479

Details

Brand
Better Boat
Colour
White
Item form
Paste
Item weight
10 Ounces
Liquid volume
10 Fluid

🌞UV & saltwater resistant

💧Waterproof above & below waterline

🛠️Adheres to 5+ surfaces

49363CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

Description

🛥️ Seal it once, sail forever – the ultimate marine-grade fix!

MULTI SURFACE MASTERY - Bonds securely to fiberglass, metal, wood, plastic, and glass for versatile repairs
FLEXIBLE WEATHERPROOF BOND - Expands, contracts, and flexes with changing conditions without cracking
FAST CURE PAINTABLE FINISH - Cures white quickly, sands smooth, and accepts paint for a flawless look
TRUSTED AMERICAN CRAFTSMANSHIP - Made in the USA by boaters for boaters with 500,000+ satisfied customers
UNMATCHED WATERPROOF DURABILITY - Seals leaks above and below waterline with heavy-duty elastomeric strength

Better Boat Marine Sealant is a premium, heavy-duty elastomeric adhesive designed for superior waterproof sealing above and below the waterline. It offers UV and saltwater resistance, flexibility to withstand weather changes, and bonds to multiple surfaces including fiberglass, metal, wood, plastic, and glass. This fast-curing, paintable sealant is proudly made in the USA and trusted by over half a million customers for marine, RV, pool, and home repairs.

Specifications

ASIN	B07V5QDLR4
Brand Name	Better Boat
Color	White
Customer Reviews	4.4 4.4 out of 5 stars (382)
Item Form	Paste
Item Weight	10 Ounces
Liquid Volume	10 Fluid Ounces
Manufacturer	Better Boat
Material Type	Elastomer
Model	BB-MRSL-WHT
Part Number	BB-MRSL-WHT
Surface Recommendation	Fiberglass, Glass, Metal, Plastic, Wood
UPC	850009198198
Unit Count	295.74 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.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Neha S.

Excellent communication throughout the order process. Product is perfect.

2 weeks ago

Vikram D.

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

2 weeks ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

49363CFA

Duties & taxes included

In stock

Sold byAmazon SenegalDelivered 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 Senegal.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month ago

Imran F.

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

2 weeks ago

View all Trustpilot reviews