Fiberglass lasts longer, is more dimensionally stable (less bowing and warping) and is a bit more environmentally friendly but the inhalation of the powders produced when grinding, cutting or sanding the finished product is known to cause of form of Mesothelioma as well as the more common skin irritation.Aluminum will last the longest, and is recyclable.

It is off Powder Plant road.

There is always a tradeoff between "keeping powder dry" to exploit inefficiences in the market and "keeping your money working."

That said, unless you're sitting on dry powder (i.e. another stash o' money) you're putting the cart before the horse. 

Wish I had some dry powder to buy some more doors...

I'm just glad the root powder and miracle grow applied to my stubs daily grew them back!  

.* to neutralize muriatic acid just pour some baking soda powder into it, stir and it will neutralize it.You should wear a respirator or mask while working with or neutralizing muriatic acid to avoid breathing in fumes

You don't have to use a powder nailer to attach the sheathing/underlayment to the concrete (in essence a "floating" floor) but that is also a possibility.

Durabond is a compound in powder form, you have to add water and mix.

Hopefully you can save that dry powder for when valuations come back in line!