Darryl Keil Last Activity 2025-09-09 11:09 AM
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Michael Wiest

 
Subject : veneer gluing
Posted : 2006-02-18 2:24 PM
Post #32832
We pressed paper back veneer in a press using 1 part urea glue (Weldwood Plastic Resin). It was in the bag for about 9 hours. When the parts were removed, the glue had failed to bond. There was a thin layer of glue on the wood parts, but only a gray trace of powdery film on the veneer.

Could the problem be with the paper backing on the veneer?


 
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Jeff Patrick


Joined: 2004-04-15
Location: Bainbridge Island, WA

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Subject : RE: veneer gluing
Posted : 2006-02-18 7:36 PM
Post #32833 - In reply to #32832
Are you sure that you applied enough glue? Were you slow in applying the glue and it had a chance to soak into the substrate?Take a scrap of the veneer and press it again using the same glue mix but with a heavier coverage. You could also test using another type of glue like pva.


 
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Darryl Keil

Posts: 1455

Joined: 2003-05-22
Location: Maine

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Subject : RE: veneer gluing
Posted : 2006-02-19 9:03 AM
Post #32835 - In reply to #32832
Michael,

Two other strong possibilities was that the glue may have gone bad,(plastic resin glue needs to be fresh), or you may have not been up to temperature.70 degrees or better is very important with this glue and I hear about considerably more glue failures this time of year.

Knowing if the shelf life of your glue was up is a bit difficult with plastic resin. Once you've used it a while you'll notice a slight stringiness or what can look like curdling so to speak when it no good anymore.

Sincerely
Darryl Keil
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