What is a Woodwork Finish

A woodwork finish is used to make a fine piece of wood last longer and enhance its natural beauty. The finish is applied to a piece of furniture according to what the piece will be used for. If a piece is going to be used outside, the finish will have to be very durable, water resistant, scratch resistant and tolerate sun light.

There are two different types of finishes. They are based on how they dry or cure. These are called evaporative finishes. A reaction occurs between the chemicals to cause them to evaporate quickly leaving a hard finish. One drawback to this type of finish is that it will redissolve in the same solvent used to thin them. Lacquer, shellac and many water-based finishes represent this type of finish. The other type of finish is called a reactive finish such as tung oil or linseed oil. These are used as a catalyst in many lacquers and varnishes. They too evaporate but these react with air or a chemical added to the can by the manufacturer. This type of finish does not redissolve in the solvent used to thin them. A reactive finish tends to hold up longer to heat and chemicals. There are many reactive finishes such as wax, true oil, and varnishes.

When choosing your finish, you have to determine what type of finish you want. Do you want a clear natural finish or do you want a hard long lasting finish that will not yellow over time? You also have to consider your skill level and the environment you will be working in. Is your shop set up to handle spray type finishes with the proper ventilation? If you have limited skills, you will want to chose a finish that is easy to do and dries fast.