posted
My understanding is that everyone uses MDF to build speaker boxes because of its uniformity and density. But HDF is equally uniform and is also more dense. So why isn't HDF the top material to use?
------------------ What I had before it was stolen Friday: Clarion DRX 8575z Cadence CEQ650-XP Pioneer Premiere 6.5 components and 5.25 coax's ~Xtant 2140c 2 12W3-D4's ~5 ft^3 ported box tuned to 32 htz ~JL 500/1 Optima Yellow Top Fosgate 1.0 farad cap All Monster cable zero noise interconnects and Fosgate wires
Posts: 1766 | From: Indianapolis, IN | Registered: Feb 2001
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posted
i've used it and its great. the reason that most people have never used it is because most people have never heard of it, its hard to find in some places, and its alot heavier than MDF, but personally i love the stuff
posted
Kappascort, have you actually done any TESTING, or WEIGHING of the HDF versus the MDF, because according to a local wood supplier (actually SEVERAL that I know) there is NO SUCH THING as HDF. They ALL agree that HDF is just what SOME people/places call MDF.
Just wondering.
------------------ Kevin Smith SS 1-2 teamROCS #010 - www.teamrocs.com
Posts: 1168 | From: Tucson, AZ, U.S.A. | Registered: Jun 2000
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posted
you can get something that is 1-1.5 inches of pressed wood, but its like a heavy duty specialty wood used for heavy duty cabinets or shelving, industrial stuff, but its quite expensive, rare, and your box would weigh like 200 pounds, its ludicrouis, and a lot of places that sell ply board and ldf, and regular wood as mdf, and mdf as hdf, orsomething like that.
posted
HDF does exist, it is commonly used in the furniture industry for thin panels that require a better than average strentgh/size ratio. Most dimensional HDF is produced in sizes less than 8mm in thickness, it is however exceptionally strong, which affords the ability to produce a tounge and groove panel in thicknesses as little as 3mm. Another common use for HDF is laminated flooring, produced by manufacturers like Pergo and Wilsonart, the high density of this product makes it well suited for use as a floor covering. Although HDF is very strong it is also very heavy, a direct result of its extreme density.
HDF, although uniform and dense, would be far too heavy to use as a primary building material, therefore MDF is the product of choice. MDF is often confused with HDF because manufacturers list it as the most dense of the readily available engineered lumber(particle board, hardboard, and fiber board), hence the confusion and mis-information.
posted
I used to use 5/8 HDF, but it's heavier and doesn't cut with a Rotozip nearly as easily as MDF does. MDF is much easier to work with and doesn't seem to make much of a difference...
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