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2. Anti-fouling paint - Wikipedia

   en.wikipedia.org/wiki/Anti-fouling_paint

   New ship being prepared for launch, showing fresh anti-fouling paint Ship hull being cleaned of fouling in drydock. Anti-fouling paint is a specialized category of coatings applied as the outer (outboard) layer to the hull of a ship or boat, to slow the growth of and facilitate detachment of subaquatic organisms that attach to the hull and can affect a vessel's performance and durability.

3. WKT (sealant) - Wikipedia

   en.wikipedia.org/wiki/WKT_(sealant)

   WKT is an elastic and non-aging sealant. It is a silicone rubber and one of the first fully synthetic sealants for the commercial marine industry [ third-party source needed ] . The active ingredient in WKT sealing compound is polydimethylsiloxane .

4. Caulk - Wikipedia

   en.wikipedia.org/wiki/Caulk

   Caulk (also known as caulking and calking) [1] is a material used to seal joints or seams against leakage in various structures and piping. The oldest form of caulk consisted of fibrous materials driven into the wedge-shaped seams between boards on wooden boats or ships. Cast iron sewerage pipes were formerly caulked in a similar way.

5. Gelcoat - Wikipedia

   en.wikipedia.org/wiki/Gelcoat

   This is usually pigmented to provide a coloured, glossy surface which improves the aesthetic appearance of the article, such as the surface of a boat hull. Many marine craft and some aircraft are manufactured using composite materials with an outer layer of gelcoat, typically 0.5 mm to 0.8 mm (0.02 in to 0.03 in) thick.

6. Superhydrophobic coating - Wikipedia

   en.wikipedia.org/wiki/Superhydrophobic_coating

   Superhydrophobic coatings have important applications in maritime industry. They can yield skin friction drag reduction for ship hulls, thus increasing fuel efficiency. Such a coating would allow ships to increase their speed or range while reducing fuel costs. They can also reduce corrosion and prevent marine organisms from growing on a ship's ...

7. List of polyurethane applications - Wikipedia

   en.wikipedia.org/wiki/List_of_polyurethane...

   Industrial Insulation. Rigid polyurethane foam is used in various industries to provide thermal insulation to installations and pipes. In particular, the piping for district heating systems in Europe is primarily insulated using a pre-insulated pipes sandwich assembly composed of a steel heat service pipe, an insulating layer (polyurethane foam) and a polyethylene (PE) casing, which are bonded ...