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Do I need a platen for vacuum gluing veneer to 3/4 inch MDF.

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Forum topic by RevenantJoiner posted 03-22-2019 04:05 PM 138 views 0 times favorited 2 replies Add to Favorites Watch
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RevenantJoiner

30 posts in 681 days


03-22-2019 04:05 PM

Topic tags/keywords: veneer vacuum press platen breather mesh question veneering

I plan to glue veneer to 3/4” MDF in a vacuum bag. The piece is almost as wide as the bag. While I can get the piece and a 3/4” platen into the bag, it is a very tight fit and may present problems keeping the veneer aligned properly. I am gluing on a flat workbench using breather mesh.

My thought is given the thickness and stiffness of the substrate, the flatness of the bench and the use of breather mesh if I put the veneer on top of the substrate under the breather mesh I may not need a platen. What do the veneer exerts think?.

Tom

-- Each time your start a project and work on it, a tree smiles knowing there’s life after death.


2 replies so far

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therealSteveN

2371 posts in 904 days


#1 posted 03-23-2019 01:55 AM

Not an expert, but some of the nicest looking veneers I have ever seen on display in museums were not done inside a bag, rather they were hammer veneered. For that a reasonably flat table to work on, a substrate which was similarly flat, glue, the veneer, and Bob’s yer Uncle. You ended up with a veneered piece that was done a long time ago. Many are still doing pretty intricate work today using those same methods. I think many veneer bag aficionados overthink what is necessary.

I think given your description it should be just fine.

-- Think safe, be safe

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TungOil

1169 posts in 825 days


#2 posted 03-23-2019 02:29 AM

I’ve vacuum bagged some pretty large pieces on my bench as you describe by weighing down the assembly on top of the bag to hold it flat to the bench. Worked well. The dining table in my projects was done that way, 65” long.

-- The optimist says "the glass is half full". The pessimist says "the glass is half empty". The engineer says "the glass is twice as big as it needs to be"

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