Poron® is a fine pitch open cell urethane foam produced by the Rogers Corporation.
Resilient Polyurethane Foam – Poron can stand up to wear caused by rubbing and scraping and it is used to absorb shock and damp vibration. Poron has open-cell construction, which allows water, air, and gases to be absorbed. It has an ultra-smooth texture for a sleek surface that is easy to wipe down.
Poron urethane foam has excellent memory (compression set resistance) giving it a superior resistance to taking a compression set as compared to neoprene sponge or polyethylene foam.
Poron is an ideal gasketing material for many indoor enclosure applications where dust, light and incidental splash sealing are required. The average cell size of Poron foam is approximately one hundred microns. The uniform, microcellular structure allows Poron to be easily compressed for dust seals and cushions.
Poron is available in a few compression ratings (Pressure to compress 25%).
Poron is available with plain backing or with a Pressure Sensitive Adhesive (PSA) adhered to one side.
Roger’s naming convention identifies each specific grade.
McMaster Carr is also a supply of Polyurethane Foam but does not have this same naming index.
Poron is available in a wide range of thicknesses. The standard thicknesses available are 1/32, 1/16, 3/16, 3/32, 1/8, 3/16, ¼, 3/8 and ½ inches.