Teak Decking Systems SIS 440 Black Caulking 592ml

SIS 440 caulking is our top selling product, and a proven leader in the marine industry. It is used by our team on every teak deck we manufacture.  No primer is required for this one-part, paste-like neutral cure patented formulation, which when exposed to moisture in the air, reacts to form a tough, flexible solid rubber.This neutral cure is non-corrosive to all substrates. It provides the durability required in the marine environment and has excellent temperature stability and chemical resistance once cured.  

• One-part polymer adhesive/sealant neutral cure.
• No primer necessary
• One-Part Silane Polymer forms a Solid Rubber Compound
• Stays flexible and cures rapidly
• Adheres permanently
• Minimum sag and shrinkage
• Highest rated resistance to UV and works in cold climates
• Used by boat builders, boat repair yards, marinas, private boat owners, cruise ships, and boat chandleries.
• Black
• Sausage 20 oz (592 mL) package
• 15-month shelf life from Date of Manufacture

Proper “spooning” technique is critical to ensure seams are adequately filled with SIS 440 Teak Deck Caulking as shown in this demonstration

Remember that caulking is not only decorative but has multiple functions:

1. Seals the deck to prevent liquids from penetrating the sub-decking area
2. Flexes and contracts with deck movement
3. Functions in all temperature ranges
4. Resists degradation by chemicals and UV light
   
   

Further, SIS 440 Teak Deck Caulking is an award-winning caulk and a proprietary formulation. When we couldn’t find a product that met our needs for constructing and repairing decks, we developed our own formulation.