SIS 440 is Teakdecking Systems’ top‑selling teak deck caulking and a proven industry leader trusted by boat builders worldwide. This one‑part, paste‑like neutral‑cure formulation requires no primer and reacts with moisture in the air to form a tough, flexible solid rubber that withstands the harsh marine environment.
The neutral cure is non‑corrosive to all substrates and delivers excellent temperature stability and chemical resistance once cured. SIS 440 stays flexible, adheres permanently and maintains its integrity under UV exposure, heavy foot traffic and extreme weather - from tropical heat to cold‑climate conditions.
👉🏻One‑part neutral‑cure polymer adhesive/sealant
👉🏻No primer required
👉🏻Forms a durable solid rubber compound
👉🏻Rapid curing and long‑term flexibility
👉🏻Permanent adhesion with minimal sag and shrinkage
👉🏻Highest UV resistance rating; reliable in cold climates
👉🏻Trusted by boat builders, repair yards, marinas, private owners, cruise ships and chandleries
For more product information, click at below link
📄PRODUCT DATA SHEET
📄SAFETY DATA SHEET
📄PRODUCT LABEL INSTRUCTIONS
📄CAULK YIELD CHART
📄CAULKING APPLICATION GUIDE
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