Urethane vs. Metal

Polyurethane is much quieter than metal, as it absorbs noise and vibration.

Polyurethane weighs significantly less than metal.  This can be especially helpful in applications involving delicate machinery or instances where the weight of an assembled parts needs to be lighter.

In applications where there will be compression, urethane has the ability to rebound back to its original size.  Metal on the other hand is not an elastomer, therefore it has no ability to flex.

It is far more cost effective to mold polyurethane, than it is metal.  This is especially the case when you have a low quantity run.

Polyurethane can be formulated to handle a variety of applications, including abrasive, water and chemical environments.

Polyurethane will not leave marks on objects it comes into contact with, unllike metal that will mar.