Boat Life Life-Calk Polysulfide Marine Sealant - Tubes & Cartridges, 2.8 oz to 10.6 oz, White & Black

Boat Life Life-Calk is a one-part polysulfide sealant built for the demands of the marine environment, above and below the waterline. It stays flexible after cure, bonds tenaciously to fiberglass, wood, metal, and glass, and stands up to years of flexing, UV exposure, and saltwater immersion without cracking or losing adhesion. Whether you are bedding deck hardware, sealing a thru-hull, glazing a port light, or re-caulking a teak deck seam, Life-Calk forms a long-lasting, watertight bond that can be sanded and painted once fully cured.

This line is offered in the tube and cartridge sizes boat owners actually need for jobs ranging from small hardware installs to full deck seam work, in the classic white and black colors used across most marine applications.

Specifications

• Material: Polysulfide, one-part liquid sealant
• Colors: White, Black
• Package formats: 2.8 oz tube, 5.2 oz cartridge, 10.6 oz cartridge
• Compatible surfaces: Fiberglass, glass, metal, wood
• Water resistance: Water resistant, suitable above and below the waterline
• Cured sealant can be sanded and painted

Sizes & Options

Choose the 2.8 oz tube (BOA-1030) for small jobs like a single fitting, hinge, or fastener. The 5.2 oz cartridge (BOA-1372) suits medium jobs such as a port light or small hardware run and fits standard caulk guns. For larger projects like deck seams, hull-to-deck joints, or multiple thru-hulls, step up to the black 10.6 oz cartridge (BOA-1034) or the black cartridge option (BOA-1033) for maximum coverage per application. Match color to your existing hardware or hull finish: white for most fiberglass and gelcoat work, black for teak seams and darker trim.