IDES | Search of the Week: Dry vs. Conditioned Plastic

January 24 - 30, 2008 - Recently a number of people have been asking about the difference between dry and conditioned data for nylon plastic materials. "Dry" refers to data that is obtained from a sample of material with equivalent moisture content as when it was molded (typically <0.2%). "Conditioned" on the other hand, refers to data obtained from a sample of material that has absorbed some environmental moisture at 50% relative humidity prior to testing. The vast majority of dry and conditioned data is seen with polyamide (Nylon) materials. To understand the need for two sets of data it's important to understand a little about the structure of Polyamide.

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