> I just did a small experiment, I had a piece of MDF that I left in water
for
> about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why are
> people saying that MDF under water bubble? I know particle boad will...
There's a variant of MDF that's water resistant, and that's probably what
you have. If it was standard MDF, your 3/4" thick board would now be 1"
thick.
Read all about it...
http://www.awi-wa.com/OVERLAY_PROD.htm
http://www.pbmdf.com/buyerguide/TBStability1.htm
http://www.pbmdf.com/buyerguide/tbshelving1.htm
and of course
http://www.pbmdf.com/
MDF
Particle board
plywood
melamine
and more
Greg wrote:
> What is MDF and what is particle board?
> I thought it was the same stuff.
> What is the stuff you buy at the BORG, either natural sawdust or with white
> (melamine) finish or a picture of wood?
MDF Medium Density Fiberboard is make up of fine partials of wood, almost
like saw dust after sanding a board.
Particle board has larger easier to see chunks of wood and reminds me of
compressed shredded wheat.
OSB. Orientated Strand Board has fist sized and a bit smaller thin
laminations of wood.
"Greg" <[email protected]> wrote in message
news:[email protected]...
> What is MDF and what is particle board?
> I thought it was the same stuff.
> What is the stuff you buy at the BORG, either natural sawdust or with
white
> (melamine) finish or a picture of wood?
I made a table from MDF a while back. I laminated 3 peices of 3/4" sheet for
the legs. I had several scraps left and I have been using one of the pieces
as a wheel chock for my boat. It has been outside for 3 months and gets wet
from the sprinkler system every other day. Same results as you report - no
swelling or delamination.... It looks the same as it did 3 months ago with
just a little discoloration.
--
HomeBrewer
http://home.earthlink.net/~t3e871/index.html
www.rcparkflyers.com
Remove the xxx to reply!
"Christian Charette" <[email protected]> wrote in message
news:[email protected]...
> Hello
>
> I just did a small experiment, I had a piece of MDF that I left in water
for
> about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why are
> people saying that MDF under water bubble? I know particle boad will...
>
> Thanks
> Christian
>
>
Rather than soak the whole thing, let a few drops of water stand on a dry
piece and see if you like the results. That said, MDF does seem to be a
bit more water tolerant lately.
You don't have tempered hardboard do you... Some of that looks like MDF.
"Christian Charette" <[email protected]> wrote in message
news:[email protected]...
> well that's what I have been buying for the past couple of months... it's
> brown like cardbord and it's heavy...
>
> Christian
>
>
> > Maybe it wasn't MDF.
> >
> > UA100
>
>
With wax, it seems odd that paint sticks to it so well.
"Lee Gordon" <[email protected]> wrote in message
news:[email protected]...
> <<I think the MDF has so much glue and is so compressed it is basically
> water
> resistant.>>
>
> Not just glue. Besides that and wood fiber, the other main ingredient in
> MDF is wax.
>
> Lee
>
>
> --
> To e-mail, replace "bucketofspam" with "dleegordon"
>
>
Are familiar with Hardy board? Fiber cement that comes in standard 1x
sizes. Does not rot, ever.
"Richard Cline" <[email protected]> wrote in message
news:[email protected]...
>
>
> I had an experience with MDF that illlustrated its limitations. I have
> 4 X 4 posts supporting my porch roof. There was an apron of MDF at the
> bottom where the posts joined a concrete base. When it rains the porch
> would get wet so the MDF would get wet also. (It does not rain often
> here.) After three years the MDF started to deform and look ugly. I
> finally replaced the MDF with redwood and it tolerates the climate much
> better.
>
> Dick
On Tue, 25 May 2004 22:58:32 GMT, "Christian Charette"
<[email protected]> wrote:
>Hello
>
>I just did a small experiment, I had a piece of MDF that I left in water for
>about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why are
>people saying that MDF under water bubble? I know particle boad will...
If you've really believe water won't affect it, you'll prove it by
building an MDF boat. <G>
Barry
mp wrote:
>>I just did a small experiment, I had a piece of MDF that I left in water
>
> for
>
>>about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why are
>>people saying that MDF under water bubble? I know particle boad will...
>
>
>
> There's a variant of MDF that's water resistant, and that's probably what
> you have. If it was standard MDF, your 3/4" thick board would now be 1"
> thick.
>
>
I saw some mdf drawers that became victims of a sudden shower go from 1/2"
to 1 1/2". A single drop of water or sweat would a circular patch
about1/16" high, not that I measured it, we were trying to get the sheets
of it out from under the newly discovered hole in the roof.
Joe
I had an experience with MDF that illlustrated its limitations. I have
4 X 4 posts supporting my porch roof. There was an apron of MDF at the
bottom where the posts joined a concrete base. When it rains the porch
would get wet so the MDF would get wet also. (It does not rain often
here.) After three years the MDF started to deform and look ugly. I
finally replaced the MDF with redwood and it tolerates the climate much
better.
Dick
"B a r r y" <[email protected]> wrote in message
news:[email protected]...
> On Tue, 25 May 2004 22:58:32 GMT, "Christian Charette"
> <[email protected]> wrote:
>
> >Hello
> >
> >I just did a small experiment, I had a piece of MDF that I left in water
for
> >about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why
are
> >people saying that MDF under water bubble? I know particle boad will...
>
> If you've really believe water won't affect it, you'll prove it by
> building an MDF boat. <G>
hehehe I build it and I will lent it to you to try :cP
Christian
"Christian Charette" <[email protected]> wrote in message
news:[email protected]...
>
>
>
> > Light brown or dark brown?
> Well I would say dark brown...
>
> > What thickness?
> 1/2"
>
Dark brown strikes me as hardboard (aka Masonite, aka High Density
Fiberboard). They make a really water resistant version, but plain ol'
hardboard is plenty resistant for me.
I made our kid's playhouse out of 1/4" hardboard, albeit painted, but it
stayed outdoors (rain, snow) for a couple of years without much sign of
wetting.
1/2" is odd. The thickest hardboard I've seen is 1/4".
All the MDF I've seen is light brown .. tan.
"Christian Charette" <[email protected]> wrote in message
news:[email protected]...
>
>
> Hello
>
> I just did a small experiment, I had a piece of MDF that I left in water
for
> about 24 hrs. After inspecting the piece, it hasent swollen a bit, Why are
Light brown or dark brown?
What thickness?
Was it the (hard to find, but available) water-resistent version?
Let the experiment run for a week.
The MDF I buy soaks up water, but I've never (intentionally) immersed it.
> Light brown or dark brown?
Well I would say dark brown...
> What thickness?
1/2"
> Was it the (hard to find, but available) water-resistent version?
Dont think so, i just grabbed the first sheet I could get on one of the
stack at Kent (our local hardware store)
> Let the experiment run for a week.
Well I put a peice of 3/4 in a glass and same result... And it's still in
water
>
> The MDF I buy soaks up water, but I've never (intentionally) immersed it.
If I put a drop on it it just stayes there even if I rubb it on to help it
penetrate...
Christian