Quote:
|
Originally Posted by Kirk
Other wise its pretty hard to tell them apart if the wraping has been removed.
|
Yet another way (and probably the easiest) is to look at the edge of the sheet of plastic.
White or frosted transparent: Acrylic (plexiglas)
Blue frosted: polycarbonate
From what I recall, polycarbonate has a "blueness index". The higher the number, the more blue tint it has. Since 1963, when Dan Fox at GE invented LEXAN, this "blueness index" has gotten lower and lower.
Andy B.