drying wet plywood warping

[Judy_Boat]

Just took the vinyl off some very soggy marine plywood. Some is 5" x 72" x 5/8".
What is the best way to let the board dry out without having it warp much? Being plywood it should not be too bad, but just hoping to avoid problems.

These pieces are used as the back rests off a Formula boat. Not major structural pieces.

[scarab29]

If they're soaked that bad , i'd replace them. PVC foam board or new ply at least.

[Darren Henry]

If you are going to re-use them; lay them out flat on the floor and turn them over once or twice a day.

[Judy_Boat]

Thanks
I stuck them under the sawhorse legs and am turning them.
These boards were wet I believe because they were wrapped in a thin layer of closed cell foam over the regular foam and plywood.
The "classic" no chance for moisture to escape.
I think if I add some ventilation holes and wrap the back in mesh they will be okay for more years.

But I do need to get all the pieces apart and see how it dries out and what needs replacing before proceeding much further. But this is one of those customer collaboration jobs.

[Stitches]

When wood dries,  it warps to the dry side.  The best thing to do would be to stand it vertically or lay it flat on some dunnage to allow airflow around entire piece. And not in the sun. Concrete always has moisture in it so you need to get the piece a few inches or so up off the concrete with enough dunnage to support the entire piece. If you have a lot of material, you can stack it but each piece needs to have airflow around it. Use some thin pieces of wood like 3/4 x 3/4 to seperate the wood (wood workers call it stickering)

[forsailbyowner]

I second the pvc foam board. light, impervious to water , easy to work with and cheap. a 4x8x1/2" sheet is around 20 bucks. glues wonderfully with pvc pipe glue.

[Stitches]

What is this PVC foam board y'all speak of?  Where can I find it?  Do staples hold well in it?

[JuneC]

$75 for a 4 x 8 foot sheet of 1/2" at Piedmont Plastics.  Holds staples really well.

June

PS.  A heat gun will warm it up nicely for curved seat backs.  Works a treat!

[forsailbyowner]

I wonder if I got charged the right price? Picked up a sheet for last job for just over $20 at the neighborhood Keyston bros.  ???

[Stitches]

I wonder if I got charged the right price? Picked up a sheet for last job for just over $20 at the neighborhood Keyston bros.  ???

Now that I can handle!

[JuneC]

I wonder if I got charged the right price? Picked up a sheet for last job for just over $20 at the neighborhood Keyston bros.  ???

I'd buy it all day long if I could get it for that price.   :o

June

[Darren Henry]

PS.  A heat gun will warm it up nicely for curved seat backs.  Works a treat!

I like to use the BBQ [everyone has one of those in the shop,right] so I can heat a larger area evenly.

[Stitches]

PS.  A heat gun will warm it up nicely for curved seat backs.  Works a treat!

I like to use the BBQ [everyone has one of those in the shop,right] so I can heat a larger area evenly.

Mmmm...smoked seat backs sounds good