Originally posted by F111D F:
So the lastest plastic one that Ford has in the parts system, ( I just replaced the whole thing) anyone know what type or plastic it is, vs the orignal?? Beside different color 
PaulI've been guessing based on its color that it is ABS. ABS is a pretty good choice for the application (heat and chemical resistance), is pretty easy to mold (wide process window), is relatively inexpensive (especially when using regrind), and is easily recycled making it a "greener" material. "Regrind" doesn't appreciably degrade the material properties of ABS compared to virgin ABS if done in the correct proportions. It's also that tell tale beige color.
One of the groups in my injection molding class did a project on it, so I had to sit through a 30 minute presentation on the properties of ABS. :rolleyes: I just about gave you their whole project (without all the slides and data graphs).
My understanding of the "black" impeller is that it is some sort of cardboard impregnated plastic mixture, but don't quote me on that.
