--- product_id: 247599204 title: "Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray" brand: "teakdecking systems" price: "€ 63.51" currency: EUR in_stock: true reviews_count: 8 category: "Teakdecking Systems" url: https://www.desertcart.hr/products/247599204-teakdecking-systems-tds-sis-440-teak-deck-caulk-cartridge-10 store_origin: HR region: Croatia --- # 21-day full cure time UV & chemical resistant 10.3oz marine-grade cartridge Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray **Brand:** teakdecking systems **Price:** € 63.51 **Availability:** βœ… In Stock ## Summary > πŸ› οΈ Seal your spot in the elite marine maintenance club with TDS SIS 440! ## Quick Answers - **What is this?** Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray by teakdecking systems - **How much does it cost?** € 63.51 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/247599204-teakdecking-systems-tds-sis-440-teak-deck-caulk-cartridge-10) ## Best For - teakdecking systems enthusiasts ## Why This Product - Trusted teakdecking systems brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Effortless Application:** Thixotropic, drip-free paste requires no primer and offers precise control on vertical and horizontal seams. - β€’ **Marine-Grade Durability:** Premium silane polymer ensures waterproof, UV, and chemical resistance for long-lasting deck protection. - β€’ **Eco-Conscious & Low Waste:** Solvent-free formula minimizes environmental impact while maximizing efficiency and reducing cleanup time. - β€’ **Trusted Industry Standard:** ASTM C920 certified, ISO 9001 manufactured, with a 15-month shelf life for consistent, reliable performance. - β€’ **Flawless Finish Every Time:** Designed for 3-10.3mm seams, sandable after curing for a clean, professional teak deck appearance. ## Overview The Teakdecking Systems SIS 440 is a 10.3oz marine-grade caulk cartridge formulated with a high-quality silane polymer that delivers superior UV, chemical, and temperature resistance. Its flexible, primer-free, and drip-free paste ensures easy, precise application on teak decks with seams from 3 to 10.3mm wide. This gray caulk cures fully in 21 days, is sandable for a flawless finish, and meets ASTM C920 standards, making it the go-to sealant for professional boat and yacht maintenance. ## Description Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray | Premium quality, first class appearance, UV & chemical resistant, non-corrosive, ideal for boats and yachts: desertcart.com: Industrial & Scientific Review: The very best caulk you'll ever have on your fingers! - I live and cruise on a sailboat. Caulking is a fact of life for mariners of all stripes, and there are a variety of types of caulk for different purposes. This one isn't designed as a glue; its tenacity is merely 'good' - but it WILL do all the waterproofing of joints you can imagine, very well. But from an applicator's point of view, it's nirvana. It's water-soluble. That means cleanup is a wipe-off for most stuff, and a water-wet rag/paper towel for any unwanted smears you might leave behind. It's repair-friendly. There were several cases where we had to replace a deck fitting on our toerail - the thing which goes all around the perimeter of the deck. The cured caulk will cut readily with a utility knife; I used a sloped-pointed-ended cut, kind of like this shape. Out comes the previous fitting. An extended snap-off blade easily removes the caulk from where the fitting sat - or removes the fitting, too, as it remains soft and pliable despite extended exposure to sun and salt water seas. In goes the new fitting, using the same level of caulking as before. With a caulk tool (a small, handled, 3-sizes-rubber-triangle-ended spreader), these replacements easily filled into those point-cuts above. A week later, you have to hunt to find them. It's our go-to caulk for anything needed to keep water out, but not need gluing to keep in place. You'll love it. Review: My view - Excellent product. Not easily found in stores ## Features - HIGH QUALITY MARINE POLYMER – 10.3oz Cartridge of boat sealant waterproof caulking made with a one-part silane polymer that forms a solid, rubber-like compound. Offers excellent UV and chemical resistance, superior temperature stability, and is easy to sand. This marine grade sealant improves project turnover time and is trusted in long-term marine caulking applications. - FLEXIBLE & PRIMER-FREE – Thixotropic paste that does not drip or sag, allowing for controlled application on vertical and horizontal seams. Stays flexible over time and requires no primer, making it an efficient marine sealant choice. Solvent-free and low waste, it's an environmentally conscious solution for marine use. - FIRST-CLASS APPEARANCE – Our marine caulking sealant is designed for seams 3 to 10.3mm wide to achieve a clean, uniform finish on teak decks. Seam depth should be equal to or greater than seam width for proper adhesion. When used with bond-breaker tape, this marine caulk helps support long-lasting, visually consistent deck seams. - OPTIMIZED CURE TIME FOR CONSISTENT RESULTS – Cures to a firm, flexible bond with reliable adhesion and durability, offering advantages over traditional polysulfide, polyurethane, and MS polymers. Gray caulk is sandable after a minimum of 15 days at 68Β°F (based on ΒΌ" x ΒΌ" seams). Larger seams may require more time. A dependable marine grade sealant for demanding environments. - INDUSTRY-STANDARD FORMULA & PACKAGING OPTIONS – Available in black, white, and gray, with a 15-month shelf life from the date of manufacture (printed on cartridge). Meets ASTM C920 standards and manufactured in an ISO 9001-certified facility, making it a consistent and compliant option for ongoing marine caulking and decking work. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08KGGZWN2 | | Best Sellers Rank | #56,505 in Industrial & Scientific ( See Top 100 in Industrial & Scientific ) #160 in Adhesive Caulk | | Brand | Teakdecking Systems | | Brand Name | Teakdecking Systems | | Color | Gray | | Customer Reviews | 4.3 out of 5 stars 141 Reviews | | Full Cure Time | 21 days | | Included Components | 1 x SIS440 Marine Caulk Cartridge (10.3 oz) | | Initial Hardening Time | 40 minutes | | Item Form | Paste | | Item Highlight | Premium quality, first class appearance, UV & chemical resistant, non-corrosive, ideal for boats and yachts | | Item Weight | 15.04 ounces | | Liquid Volume | 10 fluid ounces | | Manufacturer | Teakdecking Systems | | Material Type | Synthetic Rubber | | Maximum Gap Fill | 10 millimeters | | Model | TDS116-003 | | Number of Items | 1 | | Number of Packs | 1 | | Part Number | TDS116-003 | | Surface Recommendation | Window | | Tensile Strength | 300 psi | | UPC | 853367004132 | | Unit Count | 10.3 Fluid Ounces | | Water Resistance Level | Waterproof | ## Product Details - **Brand:** Teakdecking Systems - **Color:** Gray - **Full Cure Time:** 12 Days - **Item Weight:** 0.94 Pounds - **Liquid Volume:** 10 Fluid Ounces ## Images ![Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray - Image 1](https://m.media-amazon.com/images/I/719DEtG-CdL.jpg) ![Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray - Image 2](https://m.media-amazon.com/images/I/81vYUlZAJvL.jpg) ![Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray - Image 3](https://m.media-amazon.com/images/I/91YPELHoMQL.jpg) ![Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray - Image 4](https://m.media-amazon.com/images/I/81b39ceX3mL.jpg) ![Teakdecking Systems (TDS) SIS 440 Teak Deck Caulk Cartridge 10.3oz - Gray - Image 5](https://m.media-amazon.com/images/I/81taoLVOgbL.jpg) ## Available Options This product comes in different **Color, Size** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ The very best caulk you'll ever have on your fingers! *by S***H on January 5, 2024* I live and cruise on a sailboat. Caulking is a fact of life for mariners of all stripes, and there are a variety of types of caulk for different purposes. This one isn't designed as a glue; its tenacity is merely 'good' - but it WILL do all the waterproofing of joints you can imagine, very well. But from an applicator's point of view, it's nirvana. It's water-soluble. That means cleanup is a wipe-off for most stuff, and a water-wet rag/paper towel for any unwanted smears you might leave behind. It's repair-friendly. There were several cases where we had to replace a deck fitting on our toerail - the thing which goes all around the perimeter of the deck. The cured caulk will cut readily with a utility knife; I used a sloped-pointed-ended cut, kind of like < > this shape. Out comes the previous fitting. An extended snap-off blade easily removes the caulk from where the fitting sat - or removes the fitting, too, as it remains soft and pliable despite extended exposure to sun and salt water seas. In goes the new fitting, using the same level of caulking as before. With a caulk tool (a small, handled, 3-sizes-rubber-triangle-ended spreader), these replacements easily filled into those point-cuts above. A week later, you have to hunt to find them. It's our go-to caulk for anything needed to keep water out, but not need gluing to keep in place. You'll love it. ### ⭐⭐⭐⭐⭐ My view *by K***R on March 23, 2026* Excellent product. Not easily found in stores ### ⭐⭐⭐⭐⭐ The perfect item to fill in gaps in wood on boats. *by W***I on July 23, 2026* We used it extensively on the gaps in the teak panels that decorate the top sides of the hull on my sailboat. It’s been several years and they still look great. ## Frequently Bought Together - Teakdecking Systems - 10oz Marine Caulk Cartridge, Gray - SIS440 - Premium Quality - for Teak Deck Seams - Provides First Class Appearance - UV & Chemical Resistant, Non-Corrosive - Teakdecking Systems Reefing Hook - Designed for Caulk Removal Before Re-Caulking - Blade Width: 2.5mm, Overall Tool Length: 8.5in - Comfortable & Easy to Use - Teakdecking Systems - 10oz Marine Caulk Cartridge, Black - Premium Quality - SIS440 - for Teak Deck Seams - Provides First Class Appearance - UV & Chemical Resistant, Non-Corrosive --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.hr/products/247599204-teakdecking-systems-tds-sis-440-teak-deck-caulk-cartridge-10](https://www.desertcart.hr/products/247599204-teakdecking-systems-tds-sis-440-teak-deck-caulk-cartridge-10) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-09-03*