Freudenberg Sealing Technologies 47 NR 39 Natural Rubber

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Freudenberg Sealing Technologies 47 NR 39 Natural Rubber
Categories:	Polymer; Thermoset; Rubber or Thermoset Elastomer (TSE)
Material Notes:	Elastomers made of pure natural rubber have extreme stretchability, ranging from 700 to 1000%. The elastomer is nearly non-compressible – it does not allow itself to be compressed – only displaced. Natural rubber is stable in acids, bases, water, alcohol and air, that is, in polar media. It has low media compatibility with nonpolar media such as petroleum-based oils, synthetic lubricants, brake fluids based on glycol, overheated moisture, and aromatic hydrocarbons (gasoline). Information provided by Freudenberg Sealing Technologies.
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Physical Properties	Original Value	Comments

Density	1.05 g/cc @Temperature 23.0 °C	DIN EN ISO 1183-1

Mechanical Properties	Original Value	Comments
Hardness, Shore A	49 @Temperature 23.0 °C	DIN ISO 7619-1
Tensile Strength	14.3 MPa @Temperature 23.0 °C	DIN 53504 Normring R 1
Elongation at Break	556 % @Temperature 23.0 °C	DIN 53504 Normring R 1
100% Modulus	1.40 MPa	DIN 53504, Normring R 1

Thermal Properties	Original Value	Comments
Maximum Service Temperature, Air	85.0 °C
Minimum Service Temperature, Air	-50.0 °C

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PFREU9010 / 293541

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