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 Wood Finishing and Painting | |||
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07-03-2008, 02:44 AM
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 #1 |
| Member Join Date: Apr 2008 Location: Middletown,NY
Posts: 37
|  Bubbles!! Hi all, I did a little project out of 3/4 yellow pine. As I have in the past, I sealed it with one coat of spray shellac, followed by about five coats of a clear gloss spray. After it dried, I noticed little bubbles all over the surface. I sprayed it outdoors; temp about 65 degrees. This never happened to me before. Any ideas? Thanks. Mikej |
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07-03-2008, 02:55 AM
| #2 |
| Senior Member Join Date: Sep 2005 Location: wisconsin
Posts: 3,768
 | did you let each coat dry fully? The bubbles are most likely coming from within the wood as the voids filled with air are being filled with finish in its place.
__________________ Dale w/ yella saws |
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07-03-2008, 12:42 PM
| #3 |
| Senior Member  Join Date: Aug 2003 Location: ARIZONA
Posts: 559
| Maybe it's the spirit of Don Ho. Tom
__________________ KNOTHEAD  Never try to save a piece at the expense of spilling your beer! Last edited by knothead : 07-03-2008 at 03:06 PM. |
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07-03-2008, 09:16 PM
| #4 |
| Senior Member Join Date: Jan 2005 Location: Janesville, WI
Posts: 796
| Mikej, were you drinking champagne while doing this project??
__________________ Mick, - Delta P-20 |
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07-04-2008, 12:02 PM
| #5 |
| Senior Member Join Date: Jun 2006 Location: New Jersey
Posts: 583
| If the pine was not completely dry(6-8% moisture content) before you put the finish on, water from inside the wood could try to evaporate out and cause the bubbles. When finishing outdoors, the top surface of the wood is considerably hotter than the bottom surface and inter and intra cellular moisture will try to escape through the hotter top surface causing bubbles in the finish. Been there, done that. sawdustus
__________________ A day without sawdust is a day without sunshine. George delta 650, hawk G426 |
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07-04-2008, 11:57 PM
| #6 |
| Member Join Date: Apr 2008 Location: Middletown,NY
Posts: 37
| Thanks all, for your comments regarding the possible causes of the "bubbles" that appeared on a project after applying a spray finish. The "finishing" part is fun...if it turns out as you expected! Mikej |
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