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dryed out veneer

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Forum topic by shavins posted 04-01-2010 08:06 PM 948 views 0 times favorited 3 replies Add to Favorites Watch
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shavins

104 posts in 2619 days


04-01-2010 08:06 PM

Topic tags/keywords: veneer drying out mahogany oak pva glue

Hi all,
I am doing a project at the minute where I have veneered mahoghany veneers onto oak panels. there was qyuite a lot of glue squeeze through so I used less on the next one but still have some problems. I used normal PVA glue.

The real problem is that the veneers seem to be drying out excessively, they are going pale in colour and even sfter wetting they seem to be drying out in no time, 10 minutes or thereabouts. Does anyone out thhere know how to remedy this? The panels are almost all done and I dont have time to re do them.
Thanks
Brian

-- shavins


3 replies so far

View Chris Wright's profile

Chris Wright

540 posts in 2941 days


#1 posted 04-01-2010 09:44 PM

How thick is the veneer? Is it paper backed? When you say “drying out,” how do you mean? Are you useing an oil on it and that’s what is drying?

I’ve had solid mahagany fade and go almost gray on me (when I’ve steamed out a dent for example), but as soon as I sanded it, it went back to it’s normal color and when I applied the finish it was undetectable.

-- "At its best, life is completely unpredictable." - Christopher Walken

View DaddyZ's profile

DaddyZ

2475 posts in 2501 days


#2 posted 04-01-2010 09:51 PM

Could it be that the veneer is just returning to its original color?

Try some wax, or oil on a secluded corner & see if it will keep the color you are looking for?

IMHO your glue is soaking into the Mahogany. Paleness could be a film of glue drying on the surface. Since you already glued it let it dry & sand to get the grain pores to open then finish. I don’t do much veneer work just some inlays after the glue dries you usually can’t tell after the sanding & finishing.

As for next time maybe use spray adhesive? IMHO

-- Pat - Worker of Wood, Collector of Tools, Father of one

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shavins

104 posts in 2619 days


#3 posted 04-01-2010 11:14 PM

Chris, its 0.6mm not paper backed. it is turning almost grey like you say so I sprayed a mist of water and glycerine on it to see what the problem was, it looks ok then but dries out very quickly to the grey again, but sanding does not cure it, maybe the finish will restore it like yours did?
Daddy Z, I tried some beeswax on the back and it did come up better alright. Would you say that this will last at this colour?
Thanks a million for the help guys it is much appreciated!
Brian

-- shavins

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