Since this comment is always made, let me educate people on this.Originally Posted by Delphi
This is taken directly from "Princilples of Ploymer Engineering" by McCrum, Buckley,and Bucknall.
"Plastics and rubbers are sub-groups of the same class of materials - organic high polymers - differing only in detail in their molecular structure"
Let me give you some examples of these "weak"polymers: Kevlar, nylon, polypropylene.
Here is why plastics are generally chosen (again fromteh same book):
"combine lightness and corrosion resistance witha good balance of stiffness and toughness maintained over a wide temperature range. They are easily, precisely and rapidly fabricated at modest temperature."
So here it is: "polymer" isn't a "special plastic" in the same manner that "metal" isn't a special "titanium".
Now that we are onto titanium...ok... I will stop. I like titanium too much...
-Dana