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| Does shellac shrink? https://www.luthiersforum.com/forum/viewtopic.php?f=10101&t=54166 |
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| Author: | meddlingfool [ Sun May 23, 2021 4:43 pm ] |
| Post subject: | Does shellac shrink? |
Inquiring minds want to know, and I do too. |
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| Author: | powdrell [ Sun May 23, 2021 4:58 pm ] |
| Post subject: | Re: Does shellac shrink? |
Yes...over a period of a few weeks......at least with french polish technique.....let 'em out too early and it will be back in the shop for 'touch-up'..... |
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| Author: | Alan Carruth [ Sun May 23, 2021 5:12 pm ] |
| Post subject: | Re: Does shellac shrink? |
Alcohol is less volatile than lacquer thinner, so shellac actually takes longer to shrink back than lacquer does at a given thickness. Many lacquer finishers allow for as much as a month after spraying the last coat for shrinkage, but since shellac usually goes on thinner (especially with a French polish finish) it doesn't usually take that long. Still, don't try to push it. |
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