On Thu, 2 Jul 2009 10:44:58 -0700, "Calif Bill"
wrote:


"John...same as yesterday." wrote in message
.. .
On Thu, 2 Jul 2009 05:33:59 -0700 (PDT), jamesgangnc
wrote:

On Jul 2, 12:27 am, "SteveB" wrote:
I live in a dry area. I want to replace some wood on my boat. Is marine
plywood an absolute necessity, or would a good grade of sanded one side
suffice? About the only time it would get wet would be when it is
outside
and it rains, and we get less than two inches annually.

Steve

Marine grade plywood typically has the voids filled as each layer is
added. You see the void filler on normal plywood only on the outside
layers. When I replaced my floor I selected a plywood that was not
pine rather than focusing on marine grade. Right or wrong, I left the
underside unsealed so that it could dry when it got wet. I also
removed the foam and did not refill with foam. The foam traps the
water against the floor. I added drain holes through the stringers.
I boat in SE inland lakes so the flotation is not much of an issue for
me. I have heard as alternatives to the foam, the use of 1 liter soda
bottles with the caps on them as well as cut up sections of those kids
noodles.

Hee, hee,,,"Marine grade...has the voids filled.."

WITH WHAT?
--
John H

"A government policy to rob Peter to pay Paul can be assured of the
support of Paul."
-- George Bernard Shaw

With wood. Look at the surface of good plywood. You will see the biscuits
they used to fill a defect. Marine uses the same method on inner layers.


No, no, no.

It was a joke. Poking a little fun at a Marine.

Oh, never mind.
--
John H

"A government policy to rob Peter to pay Paul can be assured of the support of Paul."
-- George Bernard Shaw

On Thu, 02 Jul 2009 16:25:50 -0400, John...same as yesterday.
wrote:

On Thu, 2 Jul 2009 10:44:58 -0700, "Calif Bill"
wrote:


"John...same as yesterday." wrote in message
. ..
On Thu, 2 Jul 2009 05:33:59 -0700 (PDT), jamesgangnc
wrote:

On Jul 2, 12:27 am, "SteveB" wrote:
I live in a dry area. I want to replace some wood on my boat. Is marine
plywood an absolute necessity, or would a good grade of sanded one side
suffice? About the only time it would get wet would be when it is
outside
and it rains, and we get less than two inches annually.

Steve

Marine grade plywood typically has the voids filled as each layer is
added. You see the void filler on normal plywood only on the outside
layers. When I replaced my floor I selected a plywood that was not
pine rather than focusing on marine grade. Right or wrong, I left the
underside unsealed so that it could dry when it got wet. I also
removed the foam and did not refill with foam. The foam traps the
water against the floor. I added drain holes through the stringers.
I boat in SE inland lakes so the flotation is not much of an issue for
me. I have heard as alternatives to the foam, the use of 1 liter soda
bottles with the caps on them as well as cut up sections of those kids
noodles.

Hee, hee,,,"Marine grade...has the voids filled.."

WITH WHAT?

"A government policy to rob Peter to pay Paul can be assured of the
support of Paul."
-- George Bernard Shaw

With wood. Look at the surface of good plywood. You will see the biscuits
they used to fill a defect. Marine uses the same method on inner layers.

No, no, no.

It was a joke. Poking a little fun at a Marine.

Oh, never mind.

I caught it - you will pay for that - when you least expect it. :)

On Jul 2, 1:44*pm, "Calif Bill" wrote:
"John...same as yesterday." wrote in messagenews:sthp45p9o2k3j6fq8tkb74m4qnjvivodv2@4ax .com...





On Thu, 2 Jul 2009 05:33:59 -0700 (PDT), jamesgangnc
wrote:

On Jul 2, 12:27 am, "SteveB" wrote:
I live in a dry area. I want to replace some wood on my boat. Is marine
plywood an absolute necessity, or would a good grade of sanded one side
suffice? About the only time it would get wet would be when it is
outside
and it rains, and we get less than two inches annually.

Steve

Marine grade plywood typically has the voids filled as each layer is
added. *You see the void filler on normal plywood only on the outside
layers. *When I replaced my floor I selected a plywood that was not
pine rather than focusing on marine grade. *Right or wrong, I left the
underside unsealed so that it could dry when it got wet. *I also
removed the foam and did not refill with foam. *The foam traps the
water against the floor. *I added drain holes through the stringers.
I boat in SE inland lakes so the flotation is not much of an issue for
me. *I have heard as alternatives to the foam, the use of 1 liter soda
bottles with the caps on them as well as cut up sections of those kids
noodles.

Hee, hee,,,"Marine grade...has the voids filled.."

WITH WHAT?
--
John H

"A government policy to rob Peter to pay Paul can be assured of the
support of Paul."
-- George Bernard Shaw

With wood. *Look at the surface of good plywood. *You will see the biscuits
they used to fill a defect. *Marine uses the same method on inner layers.- Hide quoted text -

- Show quoted text -

Hummmm, however many manufacturers use a rubber putty instead of real
wood. It's a joke but to Steve, use marine ply on a boat...

On Jul 2, 2:37*pm, Vic Smith wrote:
On Thu, 2 Jul 2009 05:33:59 -0700 (PDT), jamesgangnc

wrote:
On Jul 2, 12:27*am, "SteveB" wrote:
I live in a dry area. *I want to replace some wood on my boat. *Is marine
plywood an absolute necessity, or would a good grade of sanded one side
suffice? *About the only time it would get wet would be when it is outside
and it rains, and we get less than two inches annually.

Steve

Marine grade plywood typically has the voids filled as each layer is
added. *You see the void filler on normal plywood only on the outside
layers. *When I replaced my floor I selected a plywood that was not
pine rather than focusing on marine grade. *Right or wrong, I left the
underside unsealed so that it could dry when it got wet.

Don't know the answer to whether or not to leave the underside
unpainted on a boat floor.
But when I rebuilt an outside porch once with tongue and groove pine I
primed/painted both sides.
Wouldn't believe how fast that floor rotted.
You probably did it right.

--Vic

He did.. In the old days they used to "encapsulate" wood with epoxy.
Water will get in, and the result will be it can't get out..