Marine Sealant and Adhesive Waterproof Marine Grade Sealant Caulk High Temperature Caulk Water Sealant for Boat Auto RV No Silicone 1 Tube White 10oz

Q: What color is this when cured?

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

Q: 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

Q: 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.

Q: 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.

4.4/5

Product ID: 753286843

Secure Transaction

Details

Color
ホワイト
Brand
Better Boat
Item Weight
10 Ounces
Liquid Volume
1E+1 Fluid
Item Form
Liquid

🌞UV & saltwater resistant

💧Waterproof above & below waterline

🛠️Multi-surface adhesion

Frequently Bought Together

Marine Sealant and Adhesive, Waterproof Marine Grade Caulk, High-Temperature Water Sealant for Boat, Auto, and RV, Silicone-Free, White, 1 Tube, 10 Oz

3M Marine Adhesive Sealant Fast Cure 5200 (05220) Permanent Bonding and Sealing for Boats and RVs Above and Below the Waterline Waterproof Repair, White, 3 fl oz Tube

Stainless Steel Boat Drain Plug Kit, 1/2" Threaded Transom Plug, Marine-Grade Garboard Thru-Hull Drain Plug

Description

⚓ Seal it like a pro—stay leak-free and ride the waves with confidence!

UV SALTWATER SHIELD - Resists sun damage and corrosive saltwater, ensuring a permanent, tough bond.
FLEXIBLE WEATHER READY - Elastic formula bends, twists, and stretches to withstand harsh marine climates without cracking.
VERSATILE MULTI SURFACE USE - Adheres securely to fiberglass, metal, wood, plastic, and glass—perfect for boats, RVs, pools, and more.
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 marine pros to meet strict quality standards, so you can trust every seal.

This premium 10oz marine-grade sealant offers heavy-duty waterproofing and flexible adhesion for above and below waterline repairs. UV and saltwater resistant, it bonds to multiple surfaces including fiberglass, metal, and wood. Made in the USA by boating experts, it cures white, can be sanded and painted, and is designed to withstand extreme weather conditions for lasting durability.