There we go! Ship `em unfinished for cheaper postage rates!
Only joking, John.
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| Weight of guitar finish http://www-.luthiersforum.com/forum/viewtopic.php?f=10102&t=4944 |
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| Author: | John Kinnaird [ Mon Feb 06, 2006 1:45 pm ] |
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Has anyone ever weighed a guitar before and after it was finished? You could calculate the weight of the finish applied to the guitar and get an idea of finish thickness. (assuming you knew its density and the area of the guitar and assuming uniform coverage) John |
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| Author: | Tim McKnight [ Mon Feb 06, 2006 2:17 pm ] |
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I think I remember seeing someone say that Adam Stark has or does. |
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| Author: | Cocephus [ Mon Feb 06, 2006 3:35 pm ] |
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There we go! Ship `em unfinished for cheaper postage rates!
Only joking, John. |
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| Author: | Rod True [ Mon Feb 06, 2006 4:56 pm ] |
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I have a guitar just about ready to finish. I'll take the weight of the body and the neck before and after and will post back in a month or so. Anyone else at the finish stage? We should have a couple of tests. |
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| Author: | John Kinnaird [ Mon Feb 06, 2006 10:22 pm ] |
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I think I will do the same with just the body. That's the only part I ship out to get finished. Cocephus Shipping is eating me up. Desperate measures are called for.  |
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| Author: | rlabbe [ Tue Feb 07, 2006 12:05 am ] |
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What is the weight delta due to humidity changes? You'll have to factor that in. |
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| Author: | Mario [ Tue Feb 07, 2006 3:10 am ] |
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I did the math for this, once, and posted it on the acoustic guitar forum someplace... It's easy enough. Carefulkly weigh a known size of cured finish; in my case, I took a block of cured polyester to a paper lab with scales that measure to 4 decimals to the gram(.0001 gram!). Then calaculate the surface area of the guitar(I was just concerned with the top), multiply by the thickness of the finish, and do the math. It was pretty light, in the end. Trying to weigh the entire guitar before and after would bring in too many variables, such as the humidity, and even the inclusion of a small sliver of wood or something loose within. Weighing a 4 to 4-1/2 pound guitar also can't be done on a scale with great enough resolution; even a postal scale only weighs to the closest gram, but the entire finish may only weigh a few grams for each surface. |
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