Team K.a.L.M.

[overkill]

I find that stiffness & brittleness increases as the density goes down. UHMW-PE is softer than HDPE, which is softer than LDPE; sometimes there is very little difference between them. Manufacturers often have variations within each type IE I have some UMHW with a higher melting point and another which has more wear resistance.

EDIT: I found this interesting comparison article: http://en.wikipedia.org/wiki/Polyeth...ene_.28HDPE.29 it makes linear LDPE sound particularly interesting.