The M shall be classified as follows: Contact our engineers or reach out to us on Twitter.
List of Rubber per ASTM D The rubber is classified and coded based on the chemical composition of the polymer chain of the rubber polymer.
All FKMs contain vinylidene fluoride as a monomer. Articles needing additional references from January All articles needing additional references. Rubbers in both dry and aastm form shall be coded from the chemical composition of the polymer chain using the following classes: This means that just listing these nomenclatures should not consider this is the formulation.
ASTM D – 01 Standard Practice for Rubber and Rubber Latices-Nomenclature
The O class shall be classified as follows: ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date. ASTM D is commonly used to designate the correct polymer to be used in rubber compounds listed on material specification or part drawings.
For terms related to thermoplastic elastomers, see Practice D Historical Version s – view previous versions of standard. Please help improve this article by adding citations to reliable sources.
Retrieved from ” https: The rubber is classified and coded based on the chemical composition of the polymer chain of the rubber polymer. There are three established crosslinking mechanisms used in the curing process of FKMs. Rubber needs to be formulated with different ingredients to give its physical properties and processing characteristics. This practice covers a system of general classification or nomenclature for rubber and rubber latices.
Link to Active This link will always route to the current Active version of the standard. Referenced Documents purchase separately The documents listed below are referenced within c1418 subject standard but are not provided as part of the standard. For other uses, see FKM disambiguation. This is not a complete list: Fluoroelastomers are more expensive than neoprene or nitrile rubber elastomers.
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This page was last edited on 17 Augustat A useful overview of different types of FKM-compounds is listed here. Views Read Edit View history.
ASTM D – 17 Standard Practice for Rubber and Rubber Latices—Nomenclature
Mixtures of rubbers are identified by using the class designations for the types of rubbers in the mixture, with the major component listed first if the composition is known and in alphabetical order if the rubbers are present in equal amounts.
From Wikipedia, the free encyclopedia. Organofluorides Elastomers Materials science Fluoropolymers. Viton is now manufactured by Chemours. As we know from our post on rubber compoundsasmt is the main ingredient of a rubber compound — but not the only ingredient.
January Learn how and when to asstm this template message. The below table is a list of commonly used rubber polymers used in the sealing industry.
The R class shall be classified as follows: The Q shall be classified as follows: It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application.
This article needs additional citations for verification. They provide additional heat and chemical resistance. November 28th, by John Tranquilli. This abstract is a brief summary of the referenced standard.
FKMs can be divided into different classes on the basis of either their chemical composition, their fluorine content or their crosslinking mechanism.
The symbols can follow the chemical name for use in later references.
Compound numbers or ASTM D specification should also be used in writing a specification to give desired physical property requirements.