Freudenberg Sealing Technologies 45 NR 39 Natural Rubber

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Freudenberg Sealing Technologies 45 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	Metric	English	Comments

Density	1.03 g/cc @Temperature 23.0 °C	0.0372 lb/in³ @Temperature 73.4 °F	DIN EN ISO 1183-1

Mechanical Properties	Metric	English	Comments
Hardness, Shore A	45 @Temperature 23.0 °C	45 @Temperature 73.4 °F	DIN ISO 7619-1
Tensile Strength	13.3 MPa @Temperature 23.0 °C	1930 psi @Temperature 73.4 °F	DIN 53504 Normring R 1
Elongation at Break	589 % @Temperature 23.0 °C	589 % @Temperature 73.4 °F	DIN 53504 Normring R 1
100% Modulus	1.30 MPa @Temperature 23.0 °C	189 psi @Temperature 73.4 °F	DIN 53504, Normring R 1
Compression Set	16 % @Temperature 100 °C, Time 79200 sec	16 % @Temperature 212 °F, Time 22.0 hour	DIN ISO 815

Thermal Properties	Metric	English	Comments
Maximum Service Temperature, Air	85.0 °C	185 °F
Minimum Service Temperature, Air	-50.0 °C	-58.0 °F

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PFREU9009 / 293539

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