IsoCast URN 3003 BHT FREE is a pour-able; two-component; elastomer capable of producing transparent parts in a variety of durometer hardness levels. The hardness can be adjusted by varying the ratio of “A” Component to “B” Component to achieve a range of 35 OOO to 40A durometer. Reaction profile is dependent upon amount of catalyst added to the “B” Component. Typical applications include medical positioning supports and gel pads for pressure distribution and vibration absorption.