The Water Vapor Permeability Cups are available in a wide range of sizes for mechanical and wax sealing. They can be used at any temperature or relative humidity to ensure product performance across different conditions. Depending on the end use, water or a dessicant is placed in the base of the container. The specimen is then quickly sealed and placed in a test chamber that controls the atmosphere. Vapor loss or gain is measured by recording the weight of the sample at different intervals over a period of time.
Other Models are available but our two most popular models are listed below.
