What are the properties of rubbers & elastomers?

The chemical resistance, weathering resistance, ultraviolet light resistance, and heat and temperature properties of rubbers and elastomers are indicated below. Solvents or softeners and swelling properties are also provided. Material properties of gases, fluids, and solids, including densities, specific heats, and viscosities, are mentioned in the article.

What are the properties of rubber compounds?

PROPERTIES OF RUBBER COMPOUNDSThis table is pr esNeopreneCRChloro eneGood weathe resistance. Flame retarding. Moderate resista e to petro-leum based flu aturalNRIsoprene, naturalExcellent physical properties including abrasion d low temperature resistance. Poor resist reneIRIsoprene, syntheticSam

What factors should be considered when selecting a rubber sealing material?

In addition to chemical resistance, many other factors must be considered when selecting a rubber sealing material. These include: The Grade of the Elastomer. There are many, many different rubber manufactuers. All use slightly different formulas and variable amounts of filler compounds.

How do you know if a rubber is good?

The Durometer / Hardness of the Rubber. Generally speaking, the harder the rubber material, the greater its chemical resistance. Conditions of Service. A rubber that swells when used in conjunction with a particular fluid may be perfectly fine for sealing in a static application yet fail in a dynamic sealing environment.

Why do rubber seals fail at room temperature?

The degree of the increase will vary depending on the particular type of rubber and the chemical. As a result, a rubber that might seal a particular chemical perfectly well at room temperature could fail if subjected to higher temperature conditions. The Durometer / Hardness of the Rubber.

What does resistance rating a mean?

he chemical.Resistance RatingA – Re mmended, little or no effect. The material is unlikely to be destr Abbreviations/Rubber Material – Minor to moderate effect. The material will probably give satisfactory results but will sooner or later be destr yed by the indicated chemical.