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Your cart is empty. SIS440 Caulk is the proven leader in the marine industry and was developed specifically for teak deck seams. It is a one-part, paste-like neutral cure formulation and when exposed to moisture in the air, it reacts to form a tough, flexible solid rubber compound. The sealant does not sag during cure, and has excellent temperature stability and chemical resistance once cured. Because the sealant is neutral cure, it is non-corrosive to all substrates, will not damage the surrounding environment or structures, and provides minimum shrinkage. Caulk is easy to sand and will not clog sandpaper.
Store in a dry area at temperatures above 32°F (0°C) and below 80°F (26°C). Do not expose to direct sunlight, extreme heat, or freezing. The sealant has a shelf life of 18 months from manufacture date. See “BEST USED BY” date on packaging. Not designed for use under the waterline.
Other Applications:
- Bedding deck equipment/hardware
- Bedding parts (steps, pads, etc.)
- Caulk seams in other wood decks
- Edges around sealed windows
- Construction
About TDS SIS440 Caulk:
More than 50,000 decks manufactured and installed in 35 years; 166 miles (267 km) of caulked seams per year. Well-tested and proven in hot or cold climates. Used by boat builders, boat repair yards, marinas, private boat owners, cruise ships, and ship chandleries
Sam Shrader
Reviewed in the United States on May 23, 2024
That’s it
ArtPhotographer
Reviewed in the United States on November 1, 2024
good product.
E H-D
Reviewed in the United States on February 8, 2021
The best stuff out there. Just finished resealing the teak on my 41 ft sailboat and would not use anything else. Had to redo sections where I used a different sealant just one year earlier.
Charles M.
Reviewed in the United States on October 29, 2021
good product but found it much cheaper elsewhere
Robert Sayles
Reviewed in the United States on October 1, 2021
I use this product to fill my teak deck seams. I have tried several different brands To do this including two part sealers & have found this to be the easiest to apply, long lasting, & looks good.
F-16 Sailor
Reviewed in the United States on May 3, 2019
I find this caulk to perform very well on my teak deck. But prepare well! Clean out the old caulk, clean with acetone, lay down a slick tape on the bottom of the groove so that the caulk only sticks to the sides of the teak and then apply carefully with blue masking tape protecting the teak itself. The caulk should last for 5+ years if applied correctly. Looks very nice!
Stormy Crowe
Reviewed in the United States on June 26, 2018
So far so good. I will update later.
Thunderbird
Reviewed in the United States on October 21, 2013
This product a must have for woody boater or for someone working with boat and deck.Used it first time on my new deck made for my pre-war Chris Craft, this for over five years ago and is still in great condition.
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