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 Post subject: Does shellac shrink?
PostPosted: Sun May 23, 2021 4:43 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Wed Feb 20, 2008 7:15 pm
Posts: 7219
First name: Ed
Last Name: Bond
City: Vancouver
Country: Canada
Focus: Build
Status: Professional
Inquiring minds want to know, and I do too.


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 Post subject: Re: Does shellac shrink?
PostPosted: Sun May 23, 2021 4:58 pm 
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Mahogany
Mahogany

Joined: Mon Dec 22, 2008 7:22 pm
Posts: 88
First name: doug
Last Name: powdrell
City: hilo
State: big island
Focus: Build
Status: Amateur
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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 Post subject: Re: Does shellac shrink?
PostPosted: Sun May 23, 2021 5:12 pm 
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Brazilian Rosewood
Brazilian Rosewood

Joined: Sat Jan 15, 2005 12:50 pm
Posts: 3867
Location: United States
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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