Description
BoatLIFE Life-Calk White Sealant | Boat Supply Store
Address critical sealing and bonding challenges on your vessel with BoatLIFE Life-Calk, a polysulfide sealant engineered for enduring flexibility and robust environmental resistance. This formula cures to a firm rubber, providing exceptional waterproofing and adhesion to diverse substrates including fiberglass, wood, and metal, and offers superior resistance to teak oils, gasoline, and diesel fuel. Its capability for underwater application makes it an invaluable resource for immediate repairs, even on damp surfaces, ensuring operational readiness in demanding marine conditions.
Key Features
- Permanently Flexible Marine Polysulfide Sealant for long-term joint integrity
- Sandable and Paintable for seamless aesthetic integration after cure
- Above and Below Waterline versatile application for hull and deck
- Tack-Free in 1-3 Days for efficient project progression
- Excellent Fuel Resistance against gasoline and diesel for engine compartment reliability
- Broad Substrate Adhesion bonds to fiberglass, wood, metal, glass, and itself
- Underwater Application capability for emergency repairs and thru-hull sealing
- Cures to Firm Rubber ensuring robust waterproofing and adhesion
Specifications
| Product Specifications | |
|---|---|
| Color | White |
| Type | Marine Polysulfide Sealant |
| Flexibility | Permanently Flexible |
| Sandable | Yes |
| Paintable | Yes |
| Application | Above and Below Waterline |
| Tack-Free Time | 1-3 Days |
| Resistance | Teak oils, gasoline, diesel fuel |
| Adhesion | Fiberglass, wood, metal, glass, and itself |
| Cure | Firm flexible rubber seal |
| Waterproofing | Excellent |
| Damp Surface Application | Yes |
| Underwater Application | Yes |
| Incompatible Paints | Sikkens Cetol Deks Olje |
Who This Is For
Boat owners and marine repair professionals will find this polysulfide sealant indispensable for projects ranging from teak deck maintenance and hardware installation to critical thru-hull sealing and emergency underwater seam repairs. DIY enthusiasts undertaking precise repairs benefit from its forgiving application and durable, fuel-resistant finish.
How It Compares
| Feature | BoatLIFE Life-Calk White Sealant | Competitor |
|---|---|---|
| Type | Polysulfide | Polyurethane |
| Flexibility | Permanently Flexible | Rigid, permanent bond |
| Paintable | Yes | No |
| Tack-Free Time | 1-3 Days | 24-72 Hours |
| Gasoline/Diesel Resistance | Excellent | Good |
| Waterline Use | Above and Below | Above and Below |
Common Concerns Answered
Why does BoatLIFE Life-Calk take 1-3 days to become tack-free?
The longer tack-free time is characteristic of polysulfide sealants, offering a longer working window for precise application and allowing the material to develop its superior, permanently flexible rubber seal with robust adhesion and fuel resistance.
What paints are not compatible with BoatLIFE Life-Calk?
While Life-Calk can be painted, it is specifically noted as not compatible with Sikkens Cetol Deks Olje, which can cause adhesion or finish issues. Always perform a small test patch with your intended paint.
Is the longer cure time a significant drawback for urgent repairs?
While the tack-free time is longer than some alternatives, its ability to be applied underwater and to damp surfaces makes it invaluable for immediate, critical repairs where other sealants would fail or cannot be applied.
Frequently Asked Questions
Can BoatLIFE Life-Calk be painted?
Yes, BoatLIFE Life-Calk is paintable after it has fully cured, allowing for a seamless finish that matches your boat's aesthetic.
Is BoatLIFE Life-Calk suitable for use above and below the waterline?
Absolutely. This sealant is specifically formulated for reliable performance both above and below the waterline, making it ideal for a wide range of marine applications.
How long does it take for BoatLIFE Life-Calk to become tack-free?
BoatLIFE Life-Calk typically becomes tack-free within 1 to 3 days, depending on ambient temperature and humidity.
What surfaces does BoatLIFE Life-Calk adhere to?
It adheres exceptionally well to a variety of common marine materials including fiberglass, wood, metal, glass, and even to itself, ensuring a strong, reliable bond.
Can BoatLIFE Life-Calk be applied to damp surfaces or underwater?
Yes, BoatLIFE Life-Calk can be applied to damp surfaces and is designed for underwater application, making it perfect for emergency repairs or situations where complete drying is not possible.
