Darryl Keil Last Activity 2026-01-12 8:29 AM
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ed kolberg

Posts: 3

Joined: 2010-01-11

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Subject : veneer moisture content
Posted : 2010-01-11 5:05 PM
Post #35855
Does anyone know what moisture content walnut burl veneer should be dried to after softening and flattening so that it will remain soft yet not shrink after gluing to the substrate using unibond 800 or cold press glue? The parts I am veneering have 30 degree tapered edges of about 3/8 inches wide and the veneer has to bend over without cracking. . I have a moisture meter. The veneer reads 0% moisture before softening. After using the softener and letting it air dry for about 15 minutes the moisture content is about 24%. Each drying pass using paper towels and my vacuum press reduces the moisture content about 4% per pass. I can dry down to 0% again with about 6 passes but then the veneer is not soft at all and is again very brittle. Thanks for any replies.


 
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Don Stephan

Posts: 825

Joined: 2003-07-18
Location: Cincinnati, Ohio

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Subject : RE: veneer moisture content
Posted : 2010-01-13 8:30 PM
Post #35865 - In reply to #35855
Ed:
Could you go into a bit more detail describing what you want to veneer? Is it curved? Sudden 30 degree bend?
My understanding of flattening solution is that it makes wrinkly veneer temporarily flexible so that the wrinkles can be flattened under pressure; then when the veneer dries it stays flat. I'm not familiar with any way to make veneer permanently soft and flexible.
Don
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