How long to let plywood dry?

[Boomyal]

How long should it take to let newly purchased AB exterior grade plywood dry sufficiently to sucessfully administer penetrating epoxy?

 

[moderator1]

Re: How long to let plywood dry?

Moving to Project Boats.

 

[Boomyal]

Re: How long to let plywood dry?

Originally posted by moderator1:<br /> Moving to Project Boats.

oops! Sorry

 

[Paul Moir]

Re: How long to let plywood dry?

The veneers must be dried before they're glued together, so unless the panel hasn't been stored properly you should be good to go immediatly.<br />It's that warped pressure treated crud they sell at the home centre that's usually still dripping with CCA that causes problems.

 

[Boomyal]

Re: How long to let plywood dry?

Originally posted by Paul Moir:<br /> The veneers must be dried before they're glued together, so unless the panel hasn't been stored properly you should be good to go immediatly.<br />It's that warped pressure treated crud they sell at the home centre that's usually still dripping with CCA that causes problems.

Gotcha, PM. Thanks

 

[crab bait]

Re: How long to let plywood dry?

i set it in the sun for an hour or so on each side.. <br /><br />then apply epoxy with a thin foam ( black foam tru value ) roller from a paint tray in the shade.. always apply in the shade

 

[Boomyal]

Re: How long to let plywood dry?

Originally posted by crab bait:<br /> i set it in the sun for an hour or so on each side.. <br /><br />then apply epoxy with a thin foam ( black foam tru value ) roller from a paint tray in the shade.. always apply in the shade

Crab Bait, what does heating up the plywood accomplish?

 

[Harker]

Re: How long to let plywood dry?

As plywood heats up it "out gasses"..by warming the surface before applying epoxy, the cooling will suck the epoxy into the pores.If you take cool plywood into a warm shop and epoxy while it is warming up you will get little bubbles in the epoxy.

 

[gewf631]

Re: How long to let plywood dry?

It would depend on the thickness of the plywood. I had some 3/4" that took about a month before it was dry (cut it for a floor, so I could see how wet it was at the 2-week mark).<br /><br />This was placed in my attached garage, standing on end, with 2x4's placed between for airflow.<br /><br />As Paul Mior said,<br /> It's that warped pressure treated crud they sell at the home centre

 

[Harker]

Re: How long to let plywood dry?

Also, AB exterior is a Fir faced product ...unless it's "Satin ply" and should have glass epoxied over it to keep it from checking.

 

[crab bait]

Re: How long to let plywood dry?

you da man HARKER.. that's exactly the reason.. sun opens up the 'pores'.. also seems to dry off the lumberyard warehouse storage moisture..