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Description
Inland Marine Inflatable Boat Sealant provides a fast, effective way to stop slow, hard-to-find leaks from the inside. Designed for internal use, it bonds to the boat's interior fabric to seal pinholes and help prevent future leaks. Easy to apply and long-lasting, it's an ideal solution for maintaining inflatable boat reliability.
Inland Marine Inflatable Boat Sealant - IBSK Item # 870388
Description
Inland Marine Inflatable Boat Sealant
Features:
- For internal use. Sealant bonds to interior fabric of inflatable to stop hard-to-find slow, pinhole leaks and prevent future leaks from developing
- In one easy step, leaks are cured from the inside
- Easy-to-use – simply inject sealant into valve and turn boat end-over-end until inside is completely coated
- (1) Quart seals a 12' inflatable boat
- Allows boat to be deflated for storage without interior fabric sticking to itself
- Sealant provides a strong bond that should last for years when applied according to instructions
Specifications:
- Size: 32 oz.
Part Numbers for Inland Marine Inflatable Boat Sealant - IBSK
Reviews
Rated 3 out of
5
by
Razo from
Good for slow leaks
I purchased a couple bottles of this to try and seal leaks in two of the three air chambers on my Hobbie inflatable kayak. Both leaks went into the bilge space, so we could not patch them without tearing the boat open. The side air chamber sealed with a bit of flipping and pumping, but sadly the floor leak was too large for the sealant of work.
I don't really blame the sealant, and it was worht $100 to try and salvage the boat, but in the end it failed. I have a lot of experience with bike tire sealant, whcih works largely the same way, but it too has it's limits.
Date published: 2023-07-03
Rated 5 out of
5
by
Howard from
Fantastic
FYI: I was very skeptical on this purchase but obviously went ahead with it. My Achilles 11.5 is over 35 years old and in disrepair with quite a few slow leaks in the seams and a few worn spots. I inserted this stuff in my four compartments and I am extremely impressed with the results. In a word, fantastic.
Date published: 2025-07-24
Rated 5 out of
5
by
John D from
Works as it should!
It was the only thing that stopped a leak from a pinhole right next to a seam.
Date published: 2025-07-07
Rated 5 out of
5
by
Evan R. from
Works as advertised.
Works as advertised. Fair price, shipped and received quickly. Used about 1/4 of a bottle in each of the 2 chambers on a 9ft Rhib, spotted 2 small leaks upon inflating which this actual sealed before I could even get my patches out. I would buy again.
Date published: 2025-06-20
Rated 5 out of
5
by
Bob E. from
Inland Marine Sealant
The product worked as advertised on a 30 year old inflatable
Date published: 2025-06-17
Rated 5 out of
5
by
Josh from
Works as described and seals what patches couldn't
I followed the directions, and it took two applications, but it worked! I finally was successful in patching the leak in our dinghy that I have been trying to repair for over two years. We had a leak in the transome that was not an area that we were able to successfully apply and external patch. In fact, we found a second leak during the first application of the sealant (where the sealant bubbled out) that was sealed by the second application of the sealant.
Date published: 2024-07-13
Rated 5 out of
5
by
Eric v from
New life for an aging inflatable
If you can see the leak with a soapy spray bottle, then this likely won't fix it based on my experience. On the other hand, if your boat is older and very slowly gets soft, then this could get you a few more years of life out of it. It even helped me find a pinhole leak that I'd missed many times before, until I found this bubbling out of it. I was able to then put a small exterior patch on and solve the issue.
Date published: 2026-06-04
Rated 4 out of
5
by
Hunt from
Marine Sealant for Inflatable Boat
Good product, application tricky and could use more instructions
Date published: 2025-10-27
Questions
Will this work with Hypalon/Orca fabrics?
I used the inflatable boat sealant on a Caribe Hypalon/Orca fabric dinghy, and it worked really well.
Years later, the Caribe is still holding air.
Date published: 2026-05-25