Painting above the waterline



SEAJET topcoats are designed to protect your boat against the elements and keep her looking like new. Where conventional alkyd paints can soon fade and need repainting regularly, SEAJET topcoats provide a longer term solution. The main benefit is that you need to paint less frequently than when using conventional paints. This is due to improved gloss rentention and colour retention. Besides that Seajet topcoats have better resistance to UV light. Therefor they offer a tougher, harder surface which is more resistant to knocks and scratches. Below you will find a few steps to achieve the best result:    




Pick a dry day and start preferably in the morning. This prevents condensation on the surface later in the night. To prevent dust from rising, wet the ground underneath the boat. Most topcoats are compatible. Please note: one component topcoats can be applied on top of two component topcoats, but not the other way around.




Sanding is required to obtain a smooth surface and key the surface. Surfaces to be painted must be clean, dry and free of oil or grease. Existing paints need to be sanded to remove small lumps and ‘blebs’ in the paintwork. Flatten back with P180-P280 abrasive paper. Finally, brush off dust and use lint free tack rags to remove remaining traces of dust.


Paint specifications


Preparation can vary depending on the surface to be coated, so follow our painting specification for specific details of preparation. For best results, apply using a short haired roller and layoff with a long haired, high quality, soft bristled brush. Use a criss-cross pattern and always finish the last stroke in the same direction. Here you will find the paint specifications for different substrates.

Painting bare surfaces


Bare surfaces must first be primed with Seajet 012 Undercoat. Two coats will give an even better finish. Stir thoroughly before use with a flat blade or stirring stick. Remove sanding dust with a brush and then a lint free tack rag.


Painting on existing paint or fibre glass


Seajet topcoats can be applied directly to existing paint or fibre glass. First rubdown to remove any imperfections using 280 then 320 abrasive paper. However to obtain a uniform and consistent colour, an undercoat is recommended. This also acts to seal the filler and prevents moisture being absorbed. SEAJET 012 Universal Primer Undercoat should be applied and then flattened back using 320 grade abrasive paper.


Between coats


Flatten back between coats using 320-400 abrasive paper. Two or preferably three coats will give a long lasting finish.