The importance of oil finishes for wood is something I’ve come to realize and it’s taken a couple of decades to see it clearly.
While the standard approach of staining and urethaning furniture, interior trim and wood floors looks good initially, it doesn’t stand up well over time. Scratches, dents and friction eventually wear through the thickest protective layer of urethane.
That’s to be expected; everything wears out in time. The problem is that renewing an existing urethane finish so it’s attractive again is pretty much impossible. You almost always need to sand back to bare wood and begin again, and that’s a big and dusty pain.
That’s why I’m turning to oil finishes for wood more and more often.
Oil finishes aren’t as durable as urethane, but they are very repairable. That’s the key. When oil starts to wear thin or get scratched, simply rub in more oil, rub off the excess and let the surface dry. The results look as good as new or almost so.
The trick is choosing the right kind of oil for the job.
In 2013, I decided to opt for an oil finish on a large cherry kitchen table top I was making for my family. My initial thought for this project was to use something called polymerized tung oil. I’ve had good luck with this in the past, though I never have used it on a kitchen table before.
In the end I bought something called Tried and True Varnish Oil by Lee Valley Tools and the results have been outstanding. Tried and True created the best oil finish results I’ve ever seen – deep and rich and long-lasting and surprisingly protective.
This year was the first time I had to renew the oil, despite five years of heavy use by a big family for three meals a day. Actually, I didn’t HAVE to renew it, but the wood was looking a little dry.
I rubbed the table down with a 3M rubbing pad, vacuumed it clear, slathered on a coat of oil, then wiped it off after 30 minutes.
Tried and True is great stuff, but it’s also the most troublesome oil I’ve used. How so? It takes a long time to dry, requiring at least three days to fully cure. And it’s quite thick compared with other oils, so rubbing it off takes more time and skill.
Would I use it again? Absolutely, but only on simple projects with few nooks and crannies. For more complicated surfaces, I have another preferred option.
Watco Oil is one of the oldest and best coloured finishing oils in the world. I just used some cherry-coloured Watco on a stair railing project I completed. It doesn’t provide as much protection as Tried and True, but it’s much faster and easier to apply, especially when you’re dealing with complicated profiles and corners.
Although cherry automatically turns a rich, reddish brown colour on its own over time, I applied cherry-coloured Watco to the cherry wood. You get a richer brown colour right away, and it also evens out any light areas of sapwood that you see in cherry sometimes.
The cherry newel posts you see here are part of a stair railing project I made. Watch a tour of how this project went together and to get a close look at the oil finish: