A Guide to The Instructions on The Can
Many years ago, one of the big varnish manufacturers had a regular advertisement showing a cowering boat owner eyeing a brightwork project with a feigned expression of terror, and saying “Vvvvvvvvarnish?” Such fear is a common sentiment among wouldbe and occasional varnishers, and for good reason: Varnish provides excellent protection while showing the beauty of the wood, but it takes a consistent commitment of time and skill each year to maintain it. And achieving a good bright (aka varnished) finish in the first place requires careful surface preparation and application.
There are myriad pitfalls that can compromise the job along the way, and a lack of maintenance during the season can ruin a fine job. Paint, frankly, is a better option for those who lack the time or inclination to maintain varnish. Indeed, vast expanses of paint (cabinsides, for example) accented by bright trim will look much better than poorly maintained varnish. Varnish, however, is not only rewarding aesthetically; because it’s transparent, it also can reveal potential areas of rot that show up early as dark, discolored spots before they become a serious problem.