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Marine plywood-details?

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John

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Jun 13, 2000, 3:00:00 AM6/13/00
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Doug Kanter wrote in message <394671DC...@earthlink.net>...
>I'm about to build two small storage boxes....
>
>Treated lumber is not an option for this project. The tops of these
>storage boxes will likely end up being food surfaces, too.


Doug....
I stopped using marine plywood for in-boat projects years ago. You're
going to wind up painting these boxes anyway, right? So make them up
with a good quality plywood, give it two coats of resin, then a couple
of coats of good paint. You're done, and your project will outlast
your grandchildren.

Regards,

John Gaquin
m/v Brefnie Queen
32' Luhrs

Doug Kanter

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Jun 13, 2000, 3:00:00 AM6/13/00
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I'm about to build two small storage boxes for my 14' Lund (basically an
open rowboat). I couple of folks have suggested marine plywood, but it
doesn't seem to exist here (in Rochester NY). Matter of fact, in a
previous thread, someone mentioned finding only one dealer in Long
Island, with a population of 3 trillion....

Anyway, I'm curious: Exactly what's special about marine ply? The glue
used in manufacturing?

ae...@flight.net

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Jun 13, 2000, 3:00:00 AM6/13/00
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On Tue, 13 Jun 2000 17:35:08 GMT, Doug Kanter
<dougk...@earthlink.net> wrote:

>I'm about to build two small storage boxes for my 14' Lund (basically an
>open rowboat). I couple of folks have suggested marine plywood, but it
>doesn't seem to exist here (in Rochester NY).

Why not use Starboard, or an equivalent? I've used this in several
applications, especially when replacing wood backing on seats and side
panels.

Doug Kanter

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Jun 13, 2000, 3:00:00 AM6/13/00
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What is it? Lund tops their aluminum seats with something that looks like
plywood, with a laminate on top. Sound similar?

The problem, though, is usually where to find stuff like this, especially in
a small city.

Doug

hkr...@capu.net

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Jun 13, 2000, 3:00:00 AM6/13/00
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Doug Kanter wrote:
>
> What is it? Lund tops their aluminum seats with something that looks like
> plywood, with a laminate on top. Sound similar?
>
> The problem, though, is usually where to find stuff like this, especially in
> a small city.
>
> Doug
>
>

About any kind of wood is available mail order.

Harry Krause
------------

With Interactive TV, you'll be able to slap Rush Limbaugh

ae...@flight.net

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Jun 13, 2000, 3:00:00 AM6/13/00
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On Tue, 13 Jun 2000 19:01:39 GMT, Doug Kanter
<dougk...@earthlink.net> wrote:

>What is it? Lund tops their aluminum seats with something that looks like
>plywood, with a laminate on top. Sound similar?
>

The "something that looks like plywood, with a laminate on top" could
be PVC, which typically has a glossy finish. The core is white with
grey "streaks," and from a side view, does look wood-like. I've used
both PVC and Starboard, and it really depends on your application.
PVC is very slick, while Starboard can be purchased with a flat or
textured finish.

Starboard and PVC are plastic-like substances that are typically
purchased in sheets, just like plywood. It can be cut, drilled,
routed, etc., just like plywood, and is actually pretty forgiving as
you don't have to worry about splintering, delamintation, knots, etc.
Also, it's impervious to rot, and very durable. Also, Starboard and
PVC do not require painting or maintenance. Many modern day transom
and cabin doors are made of this material, and the new breed of boats
being touted as "wood free" use it in places where wood has been
traditionally used in the past.

I should have mentioned originally that it's not cheap, but anything
you make with it will likely last the life of the boat. You can use
PVC or Starboard for cabinets, seats bottoms, etc.

Check your yellow pages for plastic companies, and call around. I'd
be surprised if someone in your area didn't carry one or both.

Don

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Jun 13, 2000, 3:00:00 AM6/13/00
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Marine plywood is the best you can get. It has no voids and uses the best
adhesive. It is also very expensive. If you aren't building a boat, why use
it. Use a good quality exterior plywood and put a good finish on it.
Don
LOBO

Doug Kanter wrote:

> I'm about to build two small storage boxes for my 14' Lund (basically an
> open rowboat). I couple of folks have suggested marine plywood, but it

Robert Clark

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Jun 14, 2000, 3:00:00 AM6/14/00
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Doug Kanter wrote:

> I'm about to build two small storage boxes for my 14' Lund (basically an
> open rowboat). I couple of folks have suggested marine plywood, but it
> doesn't seem to exist here (in Rochester NY). Matter of fact, in a
> previous thread, someone mentioned finding only one dealer in Long
> Island, with a population of 3 trillion....
>
> Anyway, I'm curious: Exactly what's special about marine ply? The glue
> used in manufacturing?
>
> Treated lumber is not an option for this project. The tops of these
> storage boxes will likely end up being food surfaces, too.
>
> Doug

I had to repair the engine cover/seat of my 1985 Chris Craft two years ago
and I went to the local lumber yard, Herzogs, in Kingston, NY. I told them I
wanted 3/4" marine plywood and they had it for me in less than a week. I
think a 4x8' sheet cost me $50.00.

rjc

Gfretwell

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Jun 14, 2000, 3:00:00 AM6/14/00
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The main thing that makes marine plywood so expensive is it is A/A (both sides
perfect).
If you can live with A/C grade and be sure it is exterior glue and the fine ply
(7 plys in 3/4") you will be OK for about 30-40% less money.


Doug Kanter

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Jun 14, 2000, 3:00:00 AM6/14/00
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Thank you. THIS is the answer I was looking for!
Doug

Bob

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Jun 14, 2000, 3:00:00 AM6/14/00
to Gfretwell
The other thing, and probably more important, is that the inner plys
will be of much higher quality with far fewer voids than exterier grade.
Some of the european marine plys will have no inner voids.

Bob
--

Q_ed

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Jun 14, 2000, 3:00:00 AM6/14/00
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Gfretwell wrote:
>
> In a good quality A/C the voids will all be plugged.

Very doubtful, unless the governing industrial specs been changed.

"A" face, "C" veneer cores & back ... 1" knots allowed.

Q_ed.


_/) _/) _/) _/) _/) _/) _/) _/) _/)

Gfretwell

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Jun 15, 2000, 3:00:00 AM6/15/00
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Doug Kanter

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Jun 15, 2000, 3:00:00 AM6/15/00
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What about Baltic birch ply, painted, painted and painted again?
Doug

hkr...@capu.net

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Jun 15, 2000, 3:00:00 AM6/15/00
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Something I don't understand about boatbuilders who want to use the cheapest
plys, paints, fasteners available:

If you're building any sort of decent-sized boat out of wood, you'll be
investing a considerable amount of your spare time in the effort, probably
hundreds, if not thousands, of hours. What is that time worth to you? You can
barely hire an apprentice carpenter for $10 an hour. Do you value your
boatbuilding hobby time at at least that price? If you do, and if your boat
project is going to take 500 hours of your time, you've got $5000 worth of your
labor invested.

So, what the heck difference does it make if you spend $479 on plywood or $787
or even $1000 on plywood?

If you buy the really cheesy ply and it delaminates on you, you've thrown your
500 hours right down the toilet.


--
Harry Krause
------------

He who stick head in fruit drink get punch in nose.

Gfretwell

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Jun 15, 2000, 3:00:00 AM6/15/00
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Harry, he wasn't building a boat, just a box. If water gets into those plys it
will make very little difference whether there was a 1" knot in ply 3.


ae...@flight.net

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Jun 15, 2000, 3:00:00 AM6/15/00
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On 15 Jun 2000 15:15:05 GMT, gfre...@aol.com (Gfretwell) wrote:

>Harry, he wasn't building a boat, just a box. If water gets into those plys it
>will make very little difference whether there was a 1" knot in ply 3.
>

Indeed, which is precisely why a product like PVC or Starboard is
ideal for marine applications.


Doug Kanter

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Jun 15, 2000, 3:00:00 AM6/15/00
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Harry, read the message thread. I'm building two small storage boxes for a 14' aluminum
boat. I live in a city where so far, I'm unable to find some of the materials people
have recommended. My latest message asked about Baltic birch ply, which is NOT the
cheapest product available, but a pretty pricey type of plywood. And finally, who in
this thread even mentioned fasteners, or particular types of paint???
Doug

ae...@flight.net

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Jun 15, 2000, 3:00:00 AM6/15/00
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On Thu, 15 Jun 2000 20:23:27 GMT, Doug Kanter
<dougk...@earthlink.net> wrote:

Check the following web site:

www.kingplastic.com

Waterlou4

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Jun 16, 2000, 3:00:00 AM6/16/00
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>>You can also buy starboard in cut piece sizes from Boat/US and
West Marine. It's pretty pricey that way.<<

No kidding! Have you bought bolts, nuts, and washers from either of those
places lately?


Doug Kanter

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Jun 16, 2000, 3:00:00 AM6/16/00
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Thank you!

Gfretwell

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Jun 16, 2000, 3:00:00 AM6/16/00
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I would suggest you just buy plastic boxes. I have 3 "pickup truck" type boxes
on my pontoon boat. The small rectangular boxes have kept my life jackets,
spare fire extinguisher and first aid kits like new for many years. I have one
with just spare oil, tools and parts.

Doug Kanter

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Jun 16, 2000, 3:00:00 AM6/16/00
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Well....therein lies the hitch. I'm also looking for security, for the occasional
time I park the boat at a restaurant and have cameras, handheld vhf, etc stowed.
The metal bracing I have planned will withstand anything but an attack with an
axe.

Are you boxes thick enough to handle being drilled and heavily modified?

Doug

Gfretwell

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Jun 16, 2000, 3:00:00 AM6/16/00
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The Contico boxes are bolted through the deck and have a locking catch. It is
designed to keep folks from stealing the tools from your truck and keep the
rain out at 70+mph. I am sure someone could break into them but find me
something they can't.
I used the wide box in the back and had to build a platform in the middle span
so you could stand/sit there. I cut a piece of 3/4" plywood to fit up inside
and attached 4 legs to transfer the load to the bottom and to the deck. The
side hatches are strong enough to sit on as are the rectangular boxes. I put
carpet on the 2 boxes in front for my dog to stand on.

David Smalley

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Jun 19, 2000, 3:00:00 AM6/19/00
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Doug Kanter wrote:
>
> Well....therein lies the hitch. I'm also looking for security, for the occasional
> time I park the boat at a restaurant and have cameras, handheld vhf, etc stowed.
> The metal bracing I have planned will withstand anything but an attack with an
> axe.

Ha!

If it is made of plywood all one needs is a hammer and chisel. Hell a
battery powered drill would do a great job in no time at all.

Btw most padlocks (master included) can be opened with the apropriate
sharp rap from a hammer.

I used to work in a tool crib, and you would be amazed how many people
loose their keys.

--
DAVe

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