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Your cart is empty. PROFESSIONAL GRADE - When it comes to your boat, you don't want to take chances. Our marine adhesive provides watertight bonding and sealing for fiberglass / gelcoat, wood and more. Creates watertight, weather-resistant, UV-resistant seals. Holds up well during vibration, movement and shock
Great Holding Power While Maintaining Flexibility - Our marine adhesive creates a medium-strength, semi-permanent bonds that allow bonded parts to be removed when desired. Perfect for use on deck fittings, through-hull fastenings, stern joints, access plates, hardware, hatches, portholes, railings, navigation lights, window / door frames, and more
Fast Cure, Above and Below Waterline - Unlike many marine adhesives, our 4000 / 4200 FC cures within 24 hours. Work for areas above AND below the waterline. Compare to other brand's 4000 and 4200 Fast Cure / FC and UV sealants, including 06560, 05260 and 06580
UV-Resistant, Long Lasting - No more worrying about a sealant that degrades with sun exposure - our marine sealant holds up. Does not degrade in a high sunlight/UV exposure environment. Resistant to weathering and degradation in either saltwater or freshwater environments
Easy Application - A single-component sealant that requires NO mixing. Solvent-free, Non-toxic, Low VOC. No cracking or peeling! 10oz tube, white sealant. By Berkland
Jeremiah Karrasch
Reviewed in the United States on February 25, 2025
I used this to sandwich two pieces of plexi glass to my forward portal on my boat because it cracked and a new portal is thousands of dollars. So I cut two pieces of glass, sandwiched the portal, and then I sealed the edges with this cement. Voila! No more leaks and cost me a smidge of what a new one would cost. It dried pretty quick and was easy to use. Functions as it should!
Bruno
Reviewed in the United States on January 22, 2025
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FRANK D.
Reviewed in the United States on July 30, 2024
Have to puncture metal seal on end of tube. The rattle inside the tube is actually a round ball that keeps the sealant dry
Marshall Fall
Reviewed in the United States on December 4, 2024
Good stuff as always
Julie Meyers
Reviewed in the United States on December 18, 2024
Our hot tub developed a leak after setting for a long time while it was empty. I cleaned out the pipe fitting and filled the cavity around it with the under water sealant. This fixed the leak.
Z3
Reviewed in the United States on November 30, 2024
I prefer 4200 over 5000 to allow an easier time when I need to disassemble the parts. Even around the port holes of the sailboat I use this to make a future reseat easier. It still seals as well as 5000 IMHO
Douglas L.
Reviewed in the United States on November 28, 2024
Fast delivery, good product for marine environment. Liked the gloves provided
sheila
Reviewed in the United States on October 6, 2024
Easy to use and it works. Used in my showerNo more leaks
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