PolyMod® Advantage

Seal friction can negatively affect system performance, efficiency, and life. PolyMod® high performance thermoset and thermoplastic rubber materials are polymer modified to have very low coefficients of friction and optimized wear life giving them significant advantages over conventional elastomer seal materials.

Breakout Friction Values PolyMod® High Performance Materials vs. Standard Materials:
Breakout Friction Values PolyMod® High Performance Materials vs. Standard Materials


Running Friction Values PolyMod® High Performance Materials vs. Standard Materials:
Running Friction Values PolyMod® High Performance Materials vs. Standard Material


Reduced Abrasive Wear:

Even in hydraulic systems, seal materials are worn and abraded. PolyMod® materials significantly show improvement in wear life over conventional elastomer.

Reduced Abrasive Wear


Graph Notes:
  • Evaluations using Taber Abrasion (ASTM D3389).
  • H-18 wheels at 1 kg loading.
  • Values are the mean of the three separate runs taken.
  • The wear of the PolyMod® materials is shown as a factor less than 1.0, indicating improved wear resistance when compared to the standard materials base-lined at
No Adverse Material Property Changes:

PolyMod® does not change physical properties. The PolyMod® process can be performed on O-rings to custom shapes and from seals to other rubber parts.

AS568-214 NBR O-Rings - Original Physical Properties 
Physical PropertyStandard NBR MaterialPolyMod® High Performance Material
Tensile Strength (psi)22302158
Elongation (%)290287
100% Modulus551556
Hardness (Shore A)7171
TR10 (°F)-24-27
AS568-214 NBR O-Rings - Physical Properties After Aging
70 hours @ 302°F in ASTM #3 Oil

Physical Property

Standard NBR Material

PolyMod® High Performance Material

Tensile Strength Change (%)-52-37
Elongation Change (%)-38-28
Hardness Change (pts.)77
Volume Swell (%)1616