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anyone with experience on durability of U-Beaut?
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Author:  paul h [ Sun Jul 25, 2010 6:54 pm ]
Post subject:  anyone with experience on durability of U-Beaut?
Now that U-Beaut hard shellac is available from LMI and maybe othe places as well, does anyone have insturments finished with it that have been in use for a while? How does it hold up (compared to nitro) to the usual assualts - nicks, dings, sweat, temperature changes, etc?

thanks, Paul
Author:  Pat Hawley [ Mon Jul 26, 2010 11:45 am ]
Post subject:  Re: anyone with experience on durability of U-Beaut?
I don't have direct experience but I've been following accounts of U-Beaut Hard Shellac becasue the idea of a "hard shellac" certainly has a lot of appeal. From what I've read so far, there still seems to be some challenges to overcome with respect to checking in the longer term. Read here, for example: http://woodwithstrings.blogspot.com/2009/12/once-bitten.html

So I'm still cautious.

Pat
Author:  Pete Brown [ Mon Jul 26, 2010 6:48 pm ]
Post subject:  Re: anyone with experience on durability of U-Beaut?
Pat Hawley wrote:
I don't have direct experience but I've been following accounts of U-Beaut Hard Shellac becasue the idea of a "hard shellac" certainly has a lot of appeal. From what I've read so far, there still seems to be some challenges to overcome with respect to checking in the longer term. Read here, for example: http://woodwithstrings.blogspot.com/2009/12/once-bitten.html

So I'm still cautious.

Pat

As the author of that article I want to stress that it wasn't my intention to simply blame the product, rather to report my personal experience with it. I know others have had success - particularly when used as a french-polished finish - and it may be that the finishing schedule is particularly critical.

In my own case, I pore-filled with epoxy and applied three coats of dewaxed white shellac (U-Beaut brand) as a tie coat and sealer. I reduced the top-coats of hard shellac to a 2lb cut and sprayed what I thought were thin coats, an hour or more apart. After 12 months or more, crazing is apparent over much of the guitar.
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