GoneFishin - quite the opposite......
Spar varnishes are typically designed to not only protect the wood,
but also give it the flexibility and UV protection it needs to last for years.
And the name “spar" varnish comes from the boating world, where, on a sailboat,
the long wooden poles that support the sails are known as spars.
So a spar varnish needs to be one that can withstand the rigorous conditions
of the lake and ocean seafaring life.
Household Spar Varnishes typically have very little "true" UV inhibitors.
The frugal manufacturers will typically just have a few drops of the UV inhibitors
in the formula to comply with the truth in advertising regulations.
So their resistance to the harsh UV elements is not much better
than regular furniture varnish or polyurethane.
Marine Varnishes, which are far more expensive, do contain considerable amounts
of UV inhibitors. So if you need full UV protection, it would be in your best interest to seek out
the name brands that have the specified ingredients that your project requires.
The amount of varnishes and paints used in today’s world are often overwhelming to the average person.
If you are restoring a 1940 Chris-Craft mahogany runabout, you would want to use the highest quality of
materials available, regardless of cost.
If you are just replacing or refinishing a plywood transom or wood seats on a Jon Boat,
you really don’t need to spend $65.00 for a quart of paint or varnish when the more inexpensive coatings
will do the job just as well. Proper preparation before applying any coating will result in a more durable and favorable finish.
Bottom line is - you get what you pay for.
This is an excerpt from an article that I have written - - -
If anyone would like to read the full article, PM me and
I will send it to you in "doc" format.
.
