Difference between

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  • Difference between Neoprene and Chloroprene
Chloroprene  Rubber
Neoprene Rubber.


Chloroprene  is the common name for the organic compound  2-chlorobuta-1,3-diene, which has the formula CH2=CCl−CH=CH2. 
Neoprene is same as the chloroprene which is nothing but the brand name of Dupont.
chloroprene is the general chemical name
Marketed by dupont in 1938
Chloroprene is represented by the CR
Neoprene is produced by free radical polymerization of chloroprene.
Chloroprene Rubber is marketed in various brands now like Denkaprene(Denka), Bayprene(Lanxess)
Various grades of Neoprene are available based on crystallization,Mooney ,Gel content.

Difference between AEM and ACM Rubber 


AEM Rubber
ACM Rubber


Ethylene Acrylic Elastomer
Polyacrylic Elastomer or alkyl acrylate copolymer
Application-O rings, and other moulded goods and Automotive transmission
Application-O rings, and other moulded goods and Automotive transmission
Properties: Excellent resistacne to engine oils,Good ozone resistance and heat resistance.
Properties: Excellent vibration dampening, Good dynamic property retention over a wide range of temperature.
Excellent low temperature performance
Poor low Temperature resistance than AEM
Vamac from Dupont is the commercial grade of AEM
Hytemp from Zeon, Nipol - Ar grade  are  commercial grades of ACM

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