Your vessel undergoes a lot during sailing periods. Saltwater, sun bleaching, water rot, foot traffic, chemical exposure, wear and tear, and of course, weather.
Because of this, protection is a primary component of yacht care. Yacht varnish, otherwise known as marine varnish or spar varnish, can help maintain your yacht’s cosmetic value and keep it in top shape.
Unlike regular exterior or wood varnishes you may be familiar with, yacht varnish is built for high durability and to last a long time. Marine varnish is waterproof as well due to the frequent contact your vessel makes with harsh saltwater.
But how long does yacht varnish last? What types of varnish are out there, and where do you use it?
All these questions and more, answered below.
Types of Varnish
There are a few, and they are largely distinguished by their base component. The main types of yacht varnish are:
- Oil-based varnishes. These typically use tung or linseed oils, working into wood fibres.
- Polyurethane-based varnishes. These operate as a resin and are normally classified into one-part polyurethane (glossy finish) and two-part polyurethane (heavier duty).
- Water-based varnishes. These are easy to use, low odour, and quick drying.
You may hear people refer to the type of finish as well. Perhaps the most common is a “glossy” finish, which is an attribute many oil-based, one-part polyurethane, and water-based varnishes boast. However, some varnishes offer a matte or satin finish.
Where and How to Varnish a Yacht
Varnish locations can be split into:
- Interior varnish
- Exterior varnish
The exterior varnishes do all the heavy lifting, bearing the brunt of UV rays, water and weather conditions, and more.
When it comes to varnishing a yacht exterior, pick your varnish and plan your process according to:
- UV ray-sensitive locations. This is where your boat gets the most sun. These areas will need high-resistance, durable varnishes.
- Wood type. A wood like teak may require a much gentler varnish than an oak exterior.
- Wear and tear. Where do you walk the most on your yacht? Where does activity and wear occur? These will need a resistant varnish.
Avoid: flexible, bendy surfaces, and places usually occupied with standing water. You can use marine varnish as a sealer, as its waterproof properties allows your boat to withstand harsh conditions.
These considerations will help prepare your varnish to last longer.
How Long Does Yacht Varnish Last?
If you are applying the recommended 3 – 6 coats, you should be able to get anywhere from two to four years out of your marine spar varnish. Some glossier varnishes (with oil or polyurethane bases) can last up to 10 years in some places if proper care is taken and conditions are light. Water-based varnishes have a reputation for not lasting as long.
When you apply varnish will impact the way it looks and how it holds up as well. Be sure to avoid applying marine varnish in very cold or humid conditions, as this can trap moisture beneath the varnish and make your varnish gloss turn white (otherwise known as “blushing”).
How long does yacht varnish take to dry? Usually around 4 – 6 hours, though this may change depending on the base of the varnish (water-based is quicker, for example). Be sure to check your varnish brand information.
Thinking of getting a vessel of your own? Be sure to check out our new and used collections. Send us a message at info@theoneyacht.com and we’ll help you get started.
