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Forum topic by Harry posted 01-14-2016 05:28 AM 349 views 0 times favorited 3 replies Add to Favorites Watch
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Harry

71 posts in 643 days


01-14-2016 05:28 AM

Topic tags/keywords: question finishing

I make a lot of these cradled art panels using poplar and faced with 3/16 birch ply. I have been using MDF until today and just changed over to the ply. Sick and tired of MDF. Looking for a decent sealer to use on the back and front to keep it from warping. Any suggestions? Also, if any of you make large art panels, I would like to hear from you. Smallest size I am making is 4’ x 6’ and so far up to 10’.

-- Harry - Professional amateur


3 replies so far

View AlaskaGuy's profile

AlaskaGuy

2406 posts in 1772 days


#1 posted 01-14-2016 07:09 AM

I don’t follow the construction. What I see is a wood frame with some white squares in them, or a white sheet of something with the frame laying on top. Is the 3/16 plywood under the white stuff. What’s the white stuff? I’m going to assume for a minute that there is a sheet of 3/16 plywood on the bottom of everything. Then the white stuff? and then the frame.

If I’m anywhere near close I’d say if you do proper stock prep (joint straight and square) put the frame together on a flat frame should be able to hold the 3/16 plywood flat .

Obviously I’ve never made a art panel.

-- Alaskan's for Global warming!

View Harry's profile

Harry

71 posts in 643 days


#2 posted 01-14-2016 07:31 AM



I don t follow the construction. What I see is a wood frame with some white squares in them, or a white sheet of something with the frame laying on top. Is the 3/16 plywood under the white stuff. What s the white stuff?

Obviously I ve never made a art panel.

- AlaskaGuy

I should have explained better. The white you see is a sheet of primed MDF and the poplar frame is glued and brad nailed to it. The photo shows what I used to do, I now am replacing the MDF with birch ply. I need to make these things lighter and again, I hate MDF…

-- Harry - Professional amateur

View DrTebi's profile

DrTebi

255 posts in 2730 days


#3 posted 01-14-2016 09:40 AM

Shellac should work. Mix your own to save some money. I am sitting on my wife’s desk, it has a plywood top of about 5/8” (you know, the advertised 3/4”), it only has linseed oil and shellac on it. Never warped in four years. Temperatures are not crazy here, but the top does get wet fairly often though (cleaning, spills) and hot (hot coffee, I stopped counting how many per day she drinks ☺).

I would give it a try. Some even use shellac to seal hardwood floors before they put a top-finish on.

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