EPDM 644

About
EPDM 644 is a semi-amorphous ethylene-propylene-diene terpolymer (EPDM) grade designed for molded and extruded applications. It is ideally suited for general-purpose gaskets and moldings, extruded profiles and hoses. The combination of medium viscosity and low crystallinity allows for good balance of processability, low temperature properties, and product performance. Main Characteristics: Medium diene Medium molecular weight Applications: General purpose gaskets and moldings Extruded profiles and hoses Notes: Can be used in contact with all foods except water in oil emulsions, high or low fat, and low moisture fats and oil. Adhesives only. Complies with U.S. FDA 21 CFR 177.2600 U.S. FDA 21 CFR 177.1520 U.S. FDA 21 CFR 175.105 U.S. FDA 21 CFR 177.1210 Consult the regulations for complete details.&&

Product Description
SupplierDOW
GenericEPDM+SEBS
Material StatusCommercial: Active
AvailabilitysNorth America,Latin America,Asia Pacific,Europe

Technical Data
PHYSICALNominal valueUnitTest method
Density0.860g/cm³ASTM D297
Mooney viscosity
ML 1+4,125℃36 to 44MUASTM D1646
Ethylene composition54.0 to 56.0wt%ASTM D3900
Ethylidene norbornene content4.5 to 5.3wt%ASTM D6047
Propylene content40.0wt%ASTM D3900
Residual conversion metal< 10ppmInternal Method
molecular weight distributionMedium Internal Method
Ash Content< 0.1%ASTM D5667
Volatiles< 0.40wt%Internal Method

Notes
1. Typical properties: these are not to be construed as specifications.
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