This item is eligible for free shipping on orders over $99.99
BoatLIFE LifeSeal Polyurethane/Silicone Sealant is a one part, fast curing, low odor, high adhesion, non-sag compound. LifeSeal is excellent for sealing decks to hulls, underwater thru hull fittings, vinyl ports, windshield setting glaze and the bedding of marine hardware. It retains excellent adhesion and elasticity under all weather conditions.
Note: Select 1/12 gallon size for a standard caulking cartridge.
JOINT DIMENSIONS LifeSeal is capable of withstanding extreme movement; however, we strongly recommend that joints be designed three times greater in width than the anticipated movement to help compensate for adverse field conditions. The joint width should not be less than 1/8". Joint depth should be a minimum of 1/4" to a maximum of 1/2".
PREPARATORY WORK The sealant bonding surfaces should be sound, clean, dry, and free of contamination such as release agents, water repellent treatment or other surface contaminants. Where adverse conditions are suspected, sanding is advisable. Clean surfaces to be caulked with Life Calk Solvent & Cleaner or Release.
METHOD OF APPLICATION LifeSeal can be applied directly from cartridges or bulk pails.
COMPOSITION & MATERIALS LifeSeal is a one-component, neutral emulsion of polyurethane and silicone polymers combined with proper crosslinking agents to form a unique sealant ready for use as supplied. Its ease of extrudability is unsurpassed and unaffected by extremes of temperature. Its "skin-over" time is 20 minutes or less, minimizing dirt pick-up. It cures rapidly to a firm rubber on contact with moisture from the atmosphere. Before material is cured, excess may be cleaned up with soap and water. Once cured, water will not affect the sealant. Under normal conditions LifeSeal will cure to a depth of 1/4" within 24 to 36 hours depending on temperature and humidity. LifeSeal is unsurpassed for long lasting performance in active joints with up to 75% total movement.
PACKAGING LifeSeal is packaged in 310 ml disposable cartridges fitting an ordinary caulking gun.
PACKAGE STABILITY 12 MONTHS at 75 F, & 50% relative humidity. Longer at a lower temperature and/or humidity.
COLORS LifeSeal is available in white, black, clear, and aluminum; other colors on special order only.
APPLICABLE STANDARDS LifeSeal exceeds the requirements of the Federal Specifications TT-S-001543A (COM-NBS) Type Non-Sag Class A. LifeSeal is impervious to the effects of sunlight, rain, or snow. The sealant can be applied as low as 10 F, provided the surfaces are clean, dry, and frost free.