Preserving Patio Side Tables: Oil vs. Varnish

Outdoor wooden furniture like patio side tables is subjected to contraction and expansion because of frequent temperature changes and may be damaged by the ultraviolet rays of the sun. Oil finishes penetrate into wood fibers, enhancing the beauty of the wood but offer little protection from the elements or from heavy use. Varnish forms a protective surface layer that gives durability to furniture exposed to the elements and subjected to the rigors of outdoor activities.

If you are thinking of giving further protection to your patio table like the Brianna 20-inch Round Side Table by Anderson Teak, but cannot decide on whether you should apply oil or varnish, read on and know the pros and cons of using each of these wood table finishes.

Oil Finishes

Oil finishes include tung oil, linseed oil and oil varnish mixes that may be marketed as Teak oil or Danish oil. Boiled linseed oil includes dryers to reduce the amount of time needed between coats. Oil finishes are applied by wiping the oil onto the wood in the direction of the grain, briefly waiting for penetration and then wiping the excess with a lint-free cloth. Subsequent application requires complete drying, making the process rather time consuming.

Varnish

Varnish foes a good job of resisting wear, moisture and heat. This is the reason why it is the preferred clear coating for outdoor furniture. Most varnishes will cast a light amber hue when they are applied and will yellow over time. You may want to use varnish over dark-colored wood like Teak Outdoor End Table by All Things Cedar to avoid its yellowing tendencies. The best varnish for outdoor use is a high quality spar varnish. This product is far more resistant to wood expansion and contraction and many also contain ultraviolet inhibitors to mitigate sun damage.

Oil-Based Varnish

All varnishes are not created equally. Most are made with vegetable oil and resin. Modern formulations, considered to be synthetic varnishes, include phenolic, alkyd and polyurethane. Varnish is brushed on rather than wiped on and may attract dust during its rather prolonged drying time. A dust-free working environment is therefore essential. Each layer of varnish is distinct. Careful handling is required to work out surface blemishes and to give a good surface adherence for each additional coat.

Spar Varnish

Spar varnish is the type of phenolic varnish made for use on wood that will be exposed to the elements like the Solid Teak Round Side Table by Arbora Teak. You might have seen vintage watercraft made of mahogany and restored to an attractive, durable shine. The boat that was most likely treated to multiple coats of spar varnish. Clear wood garage doors also last far longer when treated and maintained with spar finish. Your outdoor table will remain beautiful for years when protected with high quality spar varnish.

If you have more questions on the right protection that you should use for your outdoor side tables, consult a reputable furniture manufacturer or distributor in your area.