Darryl Keil Last Activity 2026-01-12 8:29 AM
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Les Robison

 
Subject : Bubbles in veneer
Posted : 2000-11-28 9:09 AM
Post #29918

I have had a couple of veneer jobs result in bubbles in the finished product. I have used Unitbond glue, MDF substrate, and cauling of 1/8th inch vinyl covered fiber board (shower board). The veneers were birds eye maple and walnut burl. The question is; a) what caused the bubbles and b) what can I do to eliminate them after pressing?



 
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Darryl Keil

 
Subject : Bubbles in veneer
Posted : 2000-11-30 9:03 PM
Post #29925 - In reply to #29918

Dear Les,Because the cause can be a number of things, a number of questions need to be asked, probably a bit too much back and forth to be practical for this forum. I suggest you give me a call at 207-725-0935 and we can talk it over more thoroughly.SincerelyDarryl Keil: I have had a couple of veneer jobs result in bubbles in the finished : product. I have used Unitbond glue, MDF substrate, and cauling of : 1/8th inch vinyl covered fiber board (shower board). The veneers : were birds eye maple and walnut burl. The question is; a) what : caused the bubbles and b) what can I do to eliminate them after : pressing?




 
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Francois Desrochers

 
Subject : Bubbles in veneer
Posted : 2000-12-21 4:52 PM
Post #29952 - In reply to #29925

I have found that if the bubble is caused by a blob of glue which accumulated in one spot, you can use a clothe iron set quite hot and basically, iron the bump down. This has happened to me a few times, especially along a taped edge, and the ironing workedfine. This is done as soon as you get the laminated pieces out ofyour press.If the problem is due to a lack of glue, then you have a problem. I have found thatslicing the veneer to inject works not too badly. Slice at anangle so as to keep the slit narrow. Inject some glue inside witha syringe or just some compressed air. Then use the iron to cure the glueI have found that ironing the glue worked better with white PVA glue thanthe Unibond.: Dear Les,: Because the cause can be a number of things, a number of questions need to be asked, probably a bit too much back and forth to be practical for this forum. I suggest you give me a call at 207-725-0935 and we can talk it over more thoroughly.: Sincerely: Darryl Keil: : : I have had a couple of veneer jobs result in bubbles in the finished : : product. I have used Unitbond glue, MDF substrate, and cauling of : : 1/8th inch vinyl covered fiber board (shower board). The veneers : : were birds eye maple and walnut burl. The question is; a) what : : caused the bubbles and b) what can I do to eliminate them after : : pressing?




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