Specific Gravity
Posted on 01/01/2019 Category:
The ratio of the density of a material as compared to the density of water at standard atmospheric pressure (1 ATM) and room temperature (20°C). Soft Natural rubber typically has an SG of 1.0, but for harder grades this will increase to 1.3, and synthetics such as Viton may vary from 1.8 to 2.5. Measured by weighing a sample in air and then water.
