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How well do the Danish Oils w/UV protection work?

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Forum topic by hokieskin posted 03-21-2017 02:53 AM 134 views 0 times favorited 4 replies Add to Favorites Watch
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hokieskin

4 posts in 6 days


03-21-2017 02:53 AM

Hey everyone. I’m a new member, but have been doing some research to try to find a good way to UV protect my turned projects. I like to use Watco Danish Oil. As it is easy, gives a nice deep luster and not real time consuming. But the wood does darken and the luster goes dull after a while.

Has anyone used any of the Danish Oils with UV protection? i.e. Liberon Superior Danish Oil, Watco Exterior Wood Finish, or Bestwood Danish Oil UV, or some other one I have not found.

Suggestions for keeping things the same color and sheen>

Thanks,
John

-- John, Mechanicsville, VA


4 replies so far

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OSU55

1204 posts in 1560 days


#1 posted 03-21-2017 12:15 PM

No, but concerning “finish oils” you might find this interesting. For no color change you will need to look into waterborne finishes. There are one or 2 supposedly formulated for turning. I use thinned solvent poly on turnings, except for small stuff where I may use CA glue.

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Fred Hargis

4255 posts in 2063 days


#2 posted 03-21-2017 12:22 PM

No experience with them either. But remember, UV protection works by absorbing the UV rays instead of reflecting them; and it’s effectiveness is reduced over time. True marine spar varnishes (probably the best of the clear finishes relative to UV protection) are typically applied with several coats to help build this UV protection. Now, danish oil is nothing more than very thin varnish with some BLO added (normally) and the UV protection will be in the varnish component. So you’re putting on a very thin coat of varnish and expecting it to absorb the UV effectively. Just a guess on my part, but it does not sound like win-win.

-- Our village hasn't lost it's idiot, he was elected to congress.

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OSU55

1204 posts in 1560 days


#3 posted 03-21-2017 02:49 PM

Are you wanting outdoor protection or indorr direct sun exposure? Either one needs pigment, not just clear/translucent finish to be effective for any length of time.

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hokieskin

4 posts in 6 days


#4 posted 03-23-2017 03:42 PM

Thank-you for the comments.

I make mostly turnings that are kept inside. So the UV exposure would be indirect through the wiindows. But I have noticed that the colors have degraded over time as well as the sheen the piece once had.

Learning how to protect the original colors of exotic woods, or the beautiful color contrasts of spalting without having to cover them with other pigmented stains or thick film finishes would be great. But maybe this is not reasonable.

Thanks,
John.

-- John, Mechanicsville, VA

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