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Restoring a cupped small cabinet door

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Forum topic by MarineSarge posted 10-06-2015 02:23 AM 458 views 0 times favorited 8 replies Add to Favorites Watch
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MarineSarge

3 posts in 424 days


10-06-2015 02:23 AM

Topic tags/keywords: question finishing refurbishing

I am in the process of restoring a small spice cabinet, and one of the doors is slightly cupped. It is varnished on both sides. I know that one method of flattening is by using a damp towel and an iron….question. Will this work on wood that is already finished and does the cup go up or down? There is some intricate painting on the door, so stripping the face is not an option.


8 replies so far

View HokieKen's profile

HokieKen

1735 posts in 598 days


#1 posted 10-06-2015 08:33 PM

What kind of wood is it and how thick is it? Is it solid, laminate or edge glued? How to fix it, if it can be fixed, depends on why it warped to begin with. If it’s sealed on both sides and indoors, it most likely isn’t a moisture issue and steaming it isn’t likely to work. You can try the damp towel and iron, just make sure you don’t burn/discolor the finish. If you do, you want to apply the moisture to the cupped side. The idea is that by introducing moisture to one side, that side expands. Alternatively, you can lay it in the sun or under a mild heat lamp with the bowed side up. Same idea but your attempting to dry out the bowed side so that it shrinks back. Bear in mind that the theory behind these methods is really aimed at laminates. Good luck!

-- Kenny, SW VA, Go Hokies!!!

View bondogaposis's profile

bondogaposis

4020 posts in 1811 days


#2 posted 10-06-2015 08:47 PM

Need a picture of the door.

-- Bondo Gaposis

View MarineSarge's profile

MarineSarge

3 posts in 424 days


#3 posted 10-07-2015 03:31 AM

Kenny..it’s 1/4” thick, unknown solid wood. Unfortunately the cupped side is the outer side ith the painting I need to save,so not likely steaming will work. Thanks for your input.

View rwe2156's profile

rwe2156

2187 posts in 940 days


#4 posted 10-07-2015 09:43 AM

My thoughts:

Without know how “slightly” cupped it is—

Multiple rip cuts on other side about 7/32 deep to allow panel to be flexed back flat.
Clamp to a flat surface and either fill with epoxy or glue on a piece of laminate.

-- Everything is a prototype thats why its one of a kind!!

View dhazelton's profile

dhazelton

2322 posts in 1756 days


#5 posted 10-07-2015 12:42 PM

My wife put an electric rice cooker on our Hoosier cabinet and the steam warped the door over it. Can’t imagine anything fixing it other than more steam and pressure in the opposite direction. Even then probably not. You may have to live with it and just try adjusting the hinge in the opposite corner so it’s not so obvious.

View HokieKen's profile

HokieKen

1735 posts in 598 days


#6 posted 10-07-2015 07:12 PM

1/4” isn’t that thick. Is there room to add a stiffener to the back side? Some good,stiff wood oriented properly might pull it back flat and keep it there with some epoxy and a good clamp up.

Rwe’s suggestion will work as well. It’s a cleaner solution and doesn’t require any space. If you’ve got a table saw and are comfortable with epoxy and laminate, I’d go that route. Make sure your relief cuts parallel the cup though, not cross it.

-- Kenny, SW VA, Go Hokies!!!

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HokieKen

1735 posts in 598 days


#7 posted 10-07-2015 07:13 PM

1/4” isn’t that thick. Is there room to add a stiffener to the back side? Some good,stiff wood oriented properly might pull it back flat and keep it there with some epoxy and a good clamp up.

Rwe’s suggestion will work as well. It’s a cleaner solution and doesn’t require any space. If you’ve got a table saw and are comfortable with epoxy and laminate, I’d go that route. Make sure your relief cuts parallel the cup though, not cross it.

-- Kenny, SW VA, Go Hokies!!!

View MarineSarge's profile

MarineSarge

3 posts in 424 days


#8 posted 10-07-2015 09:01 PM

Many thanks to Ken, RWE , dhazelton and Bondo Gaposis. Will try steaming first then the cutting/bondo trick.

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