1-Pack Paint for Boats

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Want to buy one-component paint? Then you've navigated to the right place here. We stock a range of high-quality one-component boat coatings (1k spar varnish) from brands such as INTERNATIONAL, EPIFANES, BOERO and HEMPEL. Find out more about the differences between one-component coverings and two-component paints, and their respective advantages and disadvantages. We also show you how you can get the best results in boat painting with simple "onboard tools".

What is 1 pack paint?

- What does 1K in paint mean? -

1k paint (single pack enamel paints or single part polyurethane paints) or also 2k paint (two-part paints) have good weathering characteristics and extreme water resistance. Both types are used on yachts and boats, although single-pack paint is not really suitable for use on the hull below the waterline. 1K and 2K are short forms that are sometimes used for one-pack or two-pack paints and refer to synthetic resin-based paints such as polyurethane (PUR paints), polyester, alkyd or acrylic resins. Single-part paints can be used straight from the tin, whereas two-part paints require mixing a base paint and hardener together according to manufacturer instructions just before use. Both paints are reactive paints, whereby one-part paint dries naturally in the air and two-part paint dries by chemical reaction. PUR paints and coatings will give you extremely resistant and resilient surfaces and can be used for painting vehicles, sealing wooden floors, stairs, furniture and work surfaces. Our 1K products can also be used as 1K toplac marine paint. Many high-strength high-solid paints are PUR paints.

1-component polyurethane paint is suitable for almost all surfaces such as wood, metal, plastic, glass and stone indoors or outdoors. It can also be used for wooden stairs, doors and teak furnishings. It must be applied thinly and evenly in several layers. Paint rollers are perfect for this because they absorb little paint. You can also get good results with a high-quality paint brush. Caution is advised when using 1-component PUR paint, however, as it can contain volatile and toxic solvents which are dangerous to health and the environment. Protective clothing should be worn when using, especially skin and respiratory protection.

Some manufacturers offer PUR paints as deck coatings or topcoats: a fine granulate can be added to them for a non-slip final coat, or it may already be contained in the product. Two-part marine paints are particularly resistant, making them good for painting bilges, stowage spaces or bulkheads. If you decide to buy 1K boat coating, we offer high-quality products from brands such as INTERNATIONAL, HEMPEL, EPIFANES and BOERO.

1-part paint or 2-part paint?

- What's the best paint for wood? What paint for furniture? -

Choosing the best paint for your boat depends on the surface, any existing coat and the conditions you will be painting in. Single-part paint is easier to apply because it dries at low temperatures and can be used on almost all surfaces. 2-pack paint is tougher and more resistant, but is slightly more demanding to work with, and should be applied in the right conditions. 2-part paint is slightly more expensive, but will last longer and has a higher-quality gloss. These types of paint have better coverage and chemical resistance to vapours, fuels and oil as well as light acids and alkalis.

How is 1-k paint applied?

- Working with marine paint and preparation -

If you are planning a new paint job for your boat, don't start in the winter or spring, as cool weather and moisture build up tends to lead to unsatisfactory results. You shouldn't apply paint if the ambient temperature is too low and the working area should be free of dust. Slightly wet the floor of the place you are working to prevent dirt particles from being dispersed. A water spray gun can also be used for dust control.

The surface of the boat that is to be painted must be clean, dry, grease-free and sanded. Existing coats must be cleaned and thoroughly sanded. Loose layers of paint should be removed completely. Follow the manufacturer's instructions, which differ for painting wood, GRP, aluminium or steel. A primer is often required in order to achieve the best results. Make sure you select the right primer for the best bond between the substrate and paint.

Topside marine paint that doesn't adhere to the surface, that cracks, blisters or flakes/peels extensively is almost always because of bad preparation of the surface, i.e. not removing rust or not treating with a degreaser. Low quality brushes will lose bristles, causing bad results. You should also avoid using brand new brushes for the final topcoat for the same reason. If using a sander, make sure the surface is cleaned using a dust-binding cloth before applying subsequent coats.

If applying over existing paint, i,e, paint that is in good condition, check your new paint is compatible and that there are no bad reactions. For example, 2-part varnish cannot be applied over 1-part polyurethane varnish. To test, soak a cotton pad with a two-component product (thinner or primer) and affix it to the old paint layer with adhesive tape. If the layer does not come off after several minutes, it is 2K paint or original gelcoat.

Achieving the best results also depends on the right technique, processing temperature and adhering to the specified drying times. All the information needed is printed on the tin or can be found in the instructions. Drying time varies depending on ambient temperature and the paint components. In any case, 2K paint needs more time to dry than 1K paint. Spar marine varnish or paint should be stirred thoroughly. Also, always transfer a small amount into a clean container to prevent oxygen from getting to the rest of the paint and causing contamination.

Apply paint in a criss-cross pattern. In the case of the hull, start by applying paint perpendicular to the waterline, covering a small area at a time. Then, brush or roll parallel to the waterline. The professionals call this finishing. You can then polish your 1K coat, making sure to "finish" in the original direction. If you are working with a brush, apply light pressure to avoid brush strokes.

You will need the following tools: Stripper, if the old paint layer needs to be removed, sandpaper in different grit sizes (P60 to P120 as well as P220 to P280 and P320 for the finish). You'll also need several foam rollers or brushes and a dust cloth.

Related categories: Antifouling, Bilge Paint, 2-Component Paint

We also have further marine paint products in Bilge Paint, 2-Component Boat Paint, Thinners and Painting Rollers. Our SVB Impulse Guide on paint, care & repairs includes numerous video tutorials and answers all the important questions, such as how to choose the right antifouling.

Customer ratings & reviews

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Gregor H. on 18.03.2024

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CRISTIAN DAN P. on 18.03.2024

Perfect !

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Bostjan K. on 18.03.2024

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