An improved material comprising the reaction product of an A-side having a prepolymer isocyanate and a B-side having a cross-linker comprising a multifunctional alcohol, a first vegetable oil, preferably a blownoxidized vegetable oil, most preferably a blownoxidized soybean oil, and a catalyst and the method of producing the same. A system partition is included that is dedicated to system use. A decontamination process is performed over a predetermined period of time. The formulations are capable of being uniformly delivered from drug delivery systems at an exit shear rate of between about 1 to 1\xd710\u22127 reciprocal second.