Darryl Keil Last Activity 2025-02-12 2:48 PM
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Tim

Posts: 35

Joined: 2007-06-26
Location: Baltimore MD

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Subject : Veneering ebony
Posted : 2007-06-26 4:28 PM
Post #33882
Any pitfalls on gluing up ebony veneer? Using 1/2" ply with Unibond. Just trying to avoid the " oh *%#$ " moment!


 
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Brian Gray

Posts: 339

Joined: 2004-01-21
Location: Sandusky, OH

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Subject : RE: Veneering ebony
Posted : 2007-06-26 7:03 PM
Post #33883 - In reply to #33882
I've never had problems with ebony adhesion, but I have with finishing it.

I did a panel a while back, and the entire background was ebony. I couldn't get a uniform gloss to my lacquer finish. This panel was so long ago that I don't remember my whole process, so I can't tell you what I may have done wrong.

I think that if I were doing it all over again, I'd give it a good wipe down with lacquer thinner or acetone to make sure that the oils are broken down...also a search around for ebony finishing tips.


 
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Darryl Keil

Posts: 1454

Joined: 2003-05-22
Location: Maine

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Subject : RE: Veneering ebony
Posted : 2007-06-26 8:35 PM
Post #33886 - In reply to #33882
Tim,

Make sure you're using the dark catalyst with the Unibond 800. Like Brian said its not an overly difficult veneer to glue. It tends to fizzure a bit during the cutting process and a good skim coat of epoxy before the finishing process will help "lock" the veneer up. This helps to prevent the fizzuring you can get in the finish.

Sincerely
Darryl Keil


 
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Tim

Posts: 35

Joined: 2007-06-26
Location: Baltimore MD

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Subject : RE: Veneering ebony
Posted : 2007-07-06 2:00 PM
Post #33933 - In reply to #33886
Darryl:
Could you elaborate on " skim coat"? Would this interfere with staining, or does it get sanded down? I have had problems in the past with crotch panels telegraphing through. I generally assume that the crotch is going to move where it wants to, but if a skim coat of epoxy would solve this as well it would be god to know.
Thanks, as always, for your tremendous help and patience!



 
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Darryl Keil

Posts: 1454

Joined: 2003-05-22
Location: Maine

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Subject : RE: Veneering ebony
Posted : 2007-07-07 6:22 PM
Post #33936 - In reply to #33933
Tim,

Bruce details his process of epoxy coating quite well in the "sanding epoxy" thread. I use a window squeegee to spread my epoxy. I'm not try to float a thick coating, just saturating the veneer.

Because you sand off all the epoxy back down to the bare wood, only the pores are filled, you can stain to some extent. I say "to some extent" because the fibers of the wood are saturated with the epoxy which will inhibit staining somewhat. I would perform a test to see if the amount the stain will take is to your liking.

I have used both West System and MAS brand epoxy with good results. Between the two I like the MAS brand better.

Sincerely
Darryl Keil


 
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Don Stephan

Posts: 825

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

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Subject : RE: Veneering ebony
Posted : 2007-07-11 8:53 PM
Post #33942 - In reply to #33933
Tim:

Wasn't sure what "crotch panels telegraphing through" meant. I doubt there was any movement of the crotch veneer after the adhesive was cured, unless a non-rigid adhesive like PVA or contact cement was used. Perhaps there was a bubble where the adhesive didn't hold the veneer?

If there was a telegraph after the finish had cured that could be due to a thick coat of finish that needed more time to fully cure before level sanding, or uneven veneer that wasn't level sanded before starting the finishing process. I've had both these experiences, by the way, and didn't like either one.
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