Life-Calk is a marine-grade polysulfide sealant built for lasting flexibility above and below the waterline. It bonds to fiberglass, wood, metal, glass, and itself, making it a reliable choice for teak decks, deck and hull hardware bedding, thru-hull fittings, and underwater seams. The cured rubber seal delivers strong adhesion and waterproofing, and the formula can be applied to damp surfaces or even underwater for emergency repairs. Compatible with sanding and most paints — note it is not compatible with Sikkens, Cetol, Deks, or Olje finishes.

Specifications:

• Type: Marine polysulfide sealant
• Form factor: Cartridge
• Tack-free time: 1–3 days
• Flexibility: Permanently flexible after cure
• Cure result: Firm, flexible rubber seal
• Use locations: Above and below the waterline
• Application surfaces: Fiberglass, wood, metal, glass, and itself
• Applications: Teak decks, deck hardware bedding, hull hardware bedding, thru-hull fittings, underwater seams
• Chemical resistance: Teak oils, gasoline, diesel fuel
• Special application: Can be applied underwater (emergency repairs) and to damp surfaces
• Sandable: Yes
• Paintable: Yes (not compatible with Sikkens, Cetol, Deks, or Olje)

Available in White and Black -- choose your option below.

⚠️ California Prop 65 Warning: This product can expose you to chemicals including Toluene which is known to the State of California to cause birth defects or other reproductive harm. For more information go to P65Warnings.ca.gov.