Once you have achieved the colour that you want then a good quality varnish such as Extra Tough Interior Varnish this will seal the colour and be durable finish for the wood.

Best quality yacht varnish. New brushes usually need a good clean before use to get rid of any shop dust and help prevent any bristle loss. Clean and store boat varnish brushes by suspending them with the bristles fully submerged in raw linseed oil. Both products are available in sample sizes and a test area is always recommended.

Polyurethane Varnish These varnishes give a really hard surface and are often used for floors and areas which are going to get a lot of wear and tear. They are also heat resistant too and will give a clear tough finish which is available in. For best results use a good quality long-haired soft bristle brush Pay special attention to end grain tops and bottoms of doors and undersides of sills Finish with 2 or 3 full coats of Yacht Varnish dependent on your requirements allowing a 16-24 hours drying time between coats.

There are three types of resins used. Phenolic alkyd and polyurethane. Be sure to use a varnish that is designed for marine use.

I hope that helps and if you have any further questions please do let me know. Its worthwhile spending extra for a top-quality varnish and having the finish last as long as possible. They are likely to be very similar in formulation and performance to a yacht varnish being relatively flexible but slow to cure even if they are touch dry relatively quickly.

Consistently among the top varnish alternatives in PSs tests Cetol Natural is not as muddy-looking as its predecessors Cetol Marine Light and Cetol Marinelike the Caspian Clear it allows the woods natural grain to show and has a low gloss.