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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Description

⚓ Seal the deal with marine-grade strength and flexibility!

UV SALTWATER SHIELD - Resists sun damage and corrosive saltwater for marine-grade reliability.
VERSATILE MULTI SURFACE USE - Bonds fiberglass, metal, wood, glass, and plastic with permanent strength.
FLEXIBLE WEATHERPROOF BOND - Remains elastic and strong under twisting, bending, and extreme weather conditions.
UNMATCHED WATERPROOF DURABILITY - Seals and protects seams above and below water for long-lasting leak prevention.
MADE IN THE USA WITH BOATER EXPERTISE - Crafted by boaters for boaters, ensuring premium quality and trusted performance.

This 10oz white marine sealant is a heavy-duty, flexible elastomer adhesive designed for waterproof sealing above and below the waterline. It resists UV rays, saltwater, and weather extremes while bonding securely to multiple surfaces including fiberglass, metal, and wood. Made in the USA by a family-owned company, it cures fast, sands, and paints easily, making it the ultimate choice for boat, RV, and pool 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.