Repl boat floor, marine vs AC ply
Arthur R. Davis
thing I'm having a hard time deciding about is whether to use 1/2 inch
marine or AC plywood. The marine ply is $44. per sheet and the AC ply
is $26per sheet and I'll need three sheets. I plan to put a wood
preservative on the plywood before I screw it on and before glassing it
in. What advantage do I gain for an extra $18 per sheet? What is your
combined experience? I plan to keep the boat a long time and I don't
want to repeat this task ever (20 years?) Art.
Chuck Leinweber
Have you considered pre-treated AC ply? In any case, I would not use marine ply
for the floor of a used boat.
Chuck
SAIL LOCO
"Trains are a winter sport"
Sales Staff
<arte...@hitter.net> wrote:
>I'm faced with replacing the floor on my 21 foot cuddy cabin. The only
>thing I'm having a hard time deciding about is whether to use 1/2 inch
>marine or AC plywood. The marine ply is $44. per sheet and the AC ply
>is $26per sheet and I'll need three sheets. I plan to put a wood
>preservative on the plywood before I screw it on and before glassing it
>in. What advantage do I gain for an extra $18 per sheet? What is your
>combined experience? I plan to keep the boat a long time and I don't
>want to repeat this task ever (20 years?) Art.
the difference is the way the the ply wood reacts with the elements.
Having worked in marine industry for quite sometime, we allways used
the marine grade. Less headaches down the road. Make sure to resin
coat anthing that you use on all sides, including edges. But if you
don't want to have to do this again in a few years, spend the extra
money for the 3 sheets that you need..
Peace
@cares.com Just Terry
last submerged in water where exterior will resist the effects of water but
long term submersion will kill it dead. If the flooring has no way of water
sitting and drains off completely then you could get away with it. If you
carpet it, the carpet will hold water for a very long time. Constant
saturation will kill the exterior. The wood preservative will wash out of it
in a short time. For the little difference of the price, marine grade is the
only smart way to go. make sure you use epoxy resin on the wood, the
polyester tends to absorb water easily. If the floor is going in permanant
and solid, make sure you have a proper drain path so water cant get trapped
and back under the flooring.
Arthur R. Davis wrote in message <37C460...@hitter.net>...
Steve Gubser
preservative. I would epoxy coat the underside and cross sections,
being careful to fill the end grain and any voids with epoxy and epoxy
filler. Then I would install and epoxy coat and fiberglass. I just
did this and expect it to last at least 15 years, as the factory job
lasted that long, and I did a much better job.
STeve
Johnson City, TN
On Wed, 25 Aug 1999 17:31:00 -0400, "Arthur R. Davis"
<arte...@hitter.net> wrote:
>I'm faced with replacing the floor on my 21 foot cuddy cabin. The only
>thing I'm having a hard time deciding about is whether to use 1/2 inch
>marine or AC plywood. The marine ply is $44. per sheet and the AC ply
>is $26per sheet and I'll need three sheets. I plan to put a wood
>preservative on the plywood before I screw it on and before glassing it
kr...@access1.net
three sheets?
go marine ply.
It's going to be on there forever.
If you are worried about the price difference on three sheets of
plywood,
I think maybe, you have the wrong hobby.
Boats.
sometimes boats cost because you want to put good stuff in em.
Just spend it.
then .... you won't have to wonder and question.
It's not really that much money difference if you envision the long
haul., the end produdct., the reason for doing it.
Just do it.
If it was 35 sheets like my boat was, then go ACX plywood and cover
with a couple of layers of 10 ounce biaxial cloth .
Adhere each layer of plywood to the other with West Systems Epoxy.
cover it all with 2 layers of 10 ounce biaxial cloth and west systems
epoxy.
I saved a lot of money, but it was 35 sheets of plywood, and it was
3/4" thick.
I saved $35.00 each sheet over marine ply.
3 sheets, go with marine grade plywood.
don't sweat the small stuff !!
Kevin Rea
Just my opinion from my expieriences.
kr...@access1.net
Sent via Deja.com http://www.deja.com/
Share what you know. Learn what you don't.
Twomblies
high school students 20 yrs. ago. We have to replace the bottom on them every 5
yrs. or so. We recently started replacing bottoms with marine ply but it is
too soon to note any time and effort vs. savings difference.We glass over the
bottoms and six inches up the sides. We note many voids in the AC which
necessitate plugging or filling. I vote go with the marine grade. A.J.T.