This tube of Sikaflex 291 Fast Cure Black puts out 3 ounces of high-quality sealant, perfect for all your boat maintenance needs. The brand name SIKA is synonymous with reliability and durability, ensuring that your boat will stay safe and secure for years to come. Use this product on all your boat's surfaces, including the hull, deck, and decks. It is easy to apply and will dry quickly, making it perfect for busy boaters. Don't let the elements destroy your boat's integrity - invest in this top-of-the-line sealant today.