Why offer both polyester and polycarbonate track-etch filter membranes?
A. The greatest advantage of using polyester is that it has better solvent resistance and it is prone to fewer wrinkles in the manufacturing process. One of the main reasons polycarbonate was originally used and continues to be used by most people is that for over 30 years the end-users have known mainly polycarbonate. Polycarbonate works better with live or fixed cells than does polyester. However, both polycarbonate and polyester offer very high quality end product that is suitable for a large variety of applications.
