Parker EM163-80 Low Temp EPDM

Parker EM163-80 EPDM

Reference Material:

DOWNLOAD – EM 163-80 Data sheet

Parker EM163-80 Low Temp EPDM

Excellent Low-Temperature Resilience:

Aerospace hydraulic systems pose some of the most challenging seal environments in the world. The critical nature of aircraft landing systems, actuation systems, wheel, and brake assemblies requires a premium sealing compound to reduce the frequency of maintenance and maintain the safety of all passengers. With advancements to aircraft hydraulic fluids, mating hardware designs, and sealing requirements the engineers at Parker have developed the EM163 compound. Parker’s EM163 not only to meets the ever-demanding NAS1613 Rev 6 material specification in full, but also offers improved low-temperature resilience and excellent resistance to all commercially available phosphate ester hydraulic fluids. With TR10 temperature of -68°F, EM163 easily surpasses the industry-standard requirement and is a best in class option for eliminating low-temperature leakage.

EM163-80 Product Features:

– NAS1613 Rev. 6 compliant
– Excellent resistance to all commercially available phosphate ester fluids (ie. AS1241, Skydrol, Hyjet)
– Excellent low temperature performance
– 80 Shore M hardness
– Product capabilities include O-rings, molded shapes, extruded and spliced geometries

PropertyTest MethodNAS 1613 Rev 6EM163
Original Physical PropertiesSpec Limits
Hardness, Shore M, ptsASTM D224080 ± 579
Tensile Strength, psiASTM D141414001950
Ultimate Elongation, %ASTM D1414125195
Modulus at 100% Elongation, psiASTM D1414800900
Specific GravityASTM D297Report1.18
Low Temperature Resistance
TR-10, °FASTM D1329-50-68
TR-70, °FASTM D1329-18-42
Compression Set, 25% Deflection, 2-330 O-ring
22hrs. @ 250°F, in AirASTM D395309
Testing in Phosphate Ester Fluids
Compression Set, 25% Deflection, 2-330 O-ringSpec LimitsSkydrol LD4Skydrol 500B-4Skydrol 5
22hrs. @ 250°F, in FluidASTM D3952015-2
70 hrs. @ 160°F, in Fluid202512
Fluid Immersion, 70hrs @ 160°F
Hardness Change, Shore M, pts.ASTM D471-5-3-2-4
Tensile Strength, psiReport171719641545
Ultimate Elongation, %Report177188162
Modulus at 100% Elongation, psi500913951913
Volume Change, %, 0.040-0.103" CS0 to +10+5+1+8
Volume Change, %, 0.116-0.275" CS0 to +8+6+2+8
Fluid Immersion, 334hrs @ 225°F
Hardness Change, Shore M, pts.ASTM D471Report-6-3-5
Tensile Strength, psi1200170617361510
Ultimate Elongation, %125192185175
Modulus at 100% Elongation, psi500774827759
Volume Change, %, 0.040-0.103" CS0 to +18+11+5+15

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