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Contact the regional Air Liquide team for expertise service. If you are using a mold rubber with a high viscosity, there is a chance the rubber will cure with air bubbles that may then be reflected in a finished casting. Extensive investigation and testing under the specific conditions of use need to be carried out to validate a material selection for a given application.
![dynamic viscosity air dynamic viscosity air](https://www.researchgate.net/profile/Xinting-Yu-3/publication/318019775/figure/tbl1/AS:646446848151558@1531136347374/Summary-of-variables.png)
It is therefore recommended that this table is only used to identify possible materials for applications at high pressure and ambient temperature. Water - dynamic viscosity and density over temperature Reference. No raw data such as these can cover all conditions of concentration, temperature, humidity, impurities and aeration. Other important properties of a gas are the dynamic-viscosity (defined below), kinematic-viscisity and Prandelt number (defined below). Viscosity mm²/s Density g/cm³ 2 1.6735 1.6736 0.9999 3 1.619 1.6191 1 4 1.5673 1.5674. Although the information has been compiled from what Air Liquide believes are reliable sources (International Standards: Compatibility of cylinder and valve materials with gas content Part 1- Metallic materials: ISO11114-1 (March 2012), Part 2 - Non-metallic materials: ISO11114-2 (April 2013), it must be used with extreme caution and engineering judgement. Honey and various types of oils are heavier than say water at room. It is taken from the literal context of heavy fluids. Recommendations : Air Liquide has gathered data on the compatibility of gases with materials to assist you in evaluating which materials to use for a gas system. Viscosity is a measure of flow resistance by a fluid (liquid or gas).