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Sealants for Boats

Sealants have several uses on board a boat. Our marine sealants from Sikaflex, Yachticon and Tikal are suitable for sealing through-hulls, cable inlets, bathrooms or windows. The main purpose of boat sealant is one thing: to protect the interior of the boat from water penetration. Our sealants are also ideal for embedding cleats and fittings, filling cracks that can cause leaks, and making sealant joints that are resistant to vibration.  Learn more about Sealants...

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Best ratings

1 . SIKA Sikaflex - 291i Marine Sealant / Filler Sikaflex - 291i Marine Sealant / Filler
(192)

„SIKAFLEX is a Great Spare to have on board there will always be a need.“

2 . SIKA Sikaflex - 221i Adhesive / Sealant Sikaflex - 221i Adhesive / Sealant
(120)

„It is Sikaflex, what else can you say“

3 . SIKA 12x Sikaflex - 291i Marine Sealant / Filler 12x Sikaflex - 291i Marine Sealant / Filler
(6)

„Sikaflex is one of the best marine sealing,“

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What are the properties of a good boat sealant?
Boat sealants must be weather and UV resistant and should, ideally, be overpaintable. When used indoors, sealants should contain as little solvent as possible, so that the user is exposed fewer harmful emissions. Sealant is used in boat building on a wide variety of materials. In the best case, a good sealant should be suitable for many applications and reliably seal rubber, wood, glass, plastic and metals, as well as concrete, ceramics, polystyrene, filler and existing primers and paints. 

Customer Ratings & Reviews

All reviews (105.710)
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Monte P. on 16.09.2020

Fast delivery...3 days no extra charge.

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Gary D. on 16.09.2020

Cheapest and quickest delivery

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ANITTA N. on 15.09.2020

The product was great, which I had been looking for for a long time and delivery to the door fast

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