So I bought this marine plywood and....
Fred the Red Shirt
From: Glenn Ashmore <gash...@mindspring.com>
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Organization: Dessau Realty Services
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Subject: Re: So I bought this marine plywood and....
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Date: Sun, 21 Jan 2001 16:14:55 -0500
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>While marine meranti and lumberyard luan plywood are made from the
same wood
>species, they are as different as night and day. Marine meranti uses
better
>veneers, thinner plys and waterproof glue. Cabinet grade luan that
comes from >Lowes and the Home Despot is used for backing and drawer
bottoms. It will >fall apart if any water gets through the glass at
all.
I disremember the source, it may have been "Woods of the World
in Color."
But evidently, Lauan plywood may be made from any of about 300
species, from 4 different genuses. Three of these genuses are
Merantis.
Individual meranti species vary in properties from being nearly
as soft and light as balsa to nearly as hard and heavy as teak.
WHen I first read about lauan on the net I was puzzled that some
folks referred to it as 'white mahogany' since all the lauan I
had seen up until then was cocoa brown. Since then I have seen
some with bold grain almost like oak (and quite attractive) and
also some that was pale enough to be called 'white.'
I agree that the lauan (sometimes spelt luan) plywood commonly
available is not even exterior grade and not water resistant at
all.
--
FF
P.C.
"Fred the Red Shirt" <fredf...@iwon.com> skrev i en meddelelse
news:7b50982e.02082...@posting.google.com...
> Message-ID: <3A6B514F...@mindspring.com>
> I agree that the lauan (sometimes spelt luan) plywood commonly
> available is not even exterior grade and not water resistant at
> all.
> FF
Now how do you know it's not straw or grass and what's the difference.
You can make sheet material from anything with fibers, and it's even alloved to
add your own prefered glue to make it act as wood ,this been so for many years
even ply are not how ply use to be. then if not for epoxy treadment no wood
specie are just bad ; Oak are bad as a boat deck if not cared about very
specific , Pine work much better, but where Teak last longer spruce offer
abilities that Teak and Oak can't manneage ,even those species that rot easyli
find use for carvings and exept the qualities sold as house timber shuld rather
be made into paper ,the trick is to find the right specie for the right porpus
,that is how carpenters and boatbuilders allway's worked ; deciding from cost is
your own risk.
P.C.
William R. Watt
>
> I agree that the lauan (sometimes spelt luan) plywood commonly
> available is not even exterior grade and not water resistant at
> all.
if they keep it in the store near the decorative wall panels its not
likely exterior grade, eg the doorskins and that furniture stuff. you
usually need to look outside for the exterior grade, "weather proof" made
with "moisture resistant" glue. I've used the 3-ply "underlayment" for low
cost small hulls stored ashore with an acceptable lifespan under 10 years.
if in doubt give it the boil test before using. I seal the cut edges with
glue and paint the hull with exterior latex. Suits me and my budget.
--
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P.C.
"William R. Watt" <ag...@FreeNet.Carleton.CA> skrev i en meddelelse
news:akm4jk$4lu$1...@freenet9.carleton.ca...
> Fred the Red Shirt (fredf...@iwon.com) writes:
. Suits me and my budget.
Most glue used in ply is waterproven as it often are film that glue with heat ;
much cheaper and faster than liqid glue . Still some ply need some kind of
treadment but you are quite right ,I build dinghies from the cheapest ply that
last as good as first quality .
P.C.
Bruce Fountain
>
> in Color."
Fred, why are you replying to a thread that is over
six months old?
Bruce Fountain
jcBullwinkle
or plywood. Almost all the wood was red heartwood, and plywood was widely available in ribbon grain, which looked very
nice. I mostly used it for interior work, like bookshelves, boat interiors, etc. I would have used teak, but teak was
$2 a board foot! Finishing luan was more of a hassle since the grain had to be filled. Now the quality of luan that I
see is very poor.
Tom
Al
> $2 a board foot!
my heart bleeds... The only 12x1 of decent quality set me back £40 at
only 13 foot for yellow pine... granted, a lot of inflation has happened
since then...
Al