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🛠️ Seal your deck like a pro — because your boat deserves the best!

BUILT TO LAST - Superior UV & chemical resistance ensures your teak deck stays flawless season after season.
PERFECT SEAM FINISH - Designed for 3-10mm seams, sands easily for a sleek, first-class appearance.
TIME SAVING ONE STEP - Primer-free, solvent-free application speeds up your project with less waste.
EFFORTLESS FLEXIBILITY - Thixotropic, drip-free formula for clean, precise application every time.
TRUSTED MARINE STANDARD - Used in 50,000+ decks worldwide with 18-month shelf life and ISO 9001 quality.

Teakdecking Systems SIS440 is a premium 10oz marine caulk cartridge formulated for teak deck seams. This one-part silane polymer cures into a flexible, UV and chemical-resistant rubber compound that resists sagging and corrosion. It’s primer-free, easy to sand, and designed for seams 3-10mm wide, delivering a first-class finish trusted by professionals worldwide. With an 18-month shelf life and ISO 9001 manufacturing, it’s the go-to sealant for marine and wood decking projects.

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Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

30621 Ft

Duties & taxes incl.

Hungarystore

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30 daysfor PRO membership users

15 dayswithout membership

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Rajesh P.

Customer service was outstanding when I had questions about the product.

2 days ago

View all Trustpilot reviews

Manufacturer	Teakdecking Systems
Part number	TDS300WT
Item Weight	283 g
Product Dimensions	5.08 x 5.08 x 28.58 cm; 283.5 g
Item model number	TDS300WT
Color	White
Material	Rubber
Item Package Quantity	1
Batteries Included?	No
Batteries Required?	No

Teakdecking Systems - 10oz Marine Caulk Cartridge, White - Premium Quality - SIS440 - for Teak Deck Seams - Provides First Class Appearance - UV & Chemical Resistant, Non-Corrosive

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