PolyMod Technologies

FAQ - PolyMod® and UltraMod™

Can PolyMod® be performed on TPRs (thermoplastic rubbers) such as Santoprene®?
Yes, TPR materials such as Santoprene® and Geolast® can be PolyMod® processed with significant reductions in friction.


I need my seal material to meet a particular material specification, but would like a low friction PolyMod® or UltraMod™ seal. Do these processes affect specification qualifications?
PolyMod® and UltraMod™ processes are controlled and reduce the coefficients of friction but do not change the basic engineered/physical properties of the base materials.  If the base material meets the material specification it will still do so after being PolyMod® or UltraMod™ processed.  And since these processes do not add impurities and cannot “come off” like coating, they are safe for even potable water and medical applications.  We have experience with polymer modification of MIL/AS/AMS, UL, NSF, FDA, and even USP Class VI materials.


Can the PolyMod® and UltraMod™ processes be performed on items other than seals?
Yes!  As long as the item is made out of a thermoset or thermosplastic rubber material for PolyMod® or out of a fluorocarbon (FKM) material for UltraMod™.  Items such as windshield wipers, rubber bumpers, hose and tubing have all been PolyModded before.


Internally lubricated elastomers tend to lose their internal lubrication in some service fluids.  Will the same happen to PolyMod® and UltraMod™?
PolyMod® and UltraMod™ elastomers are polymer modified.  There is no internal lube to leach out or be extracted, therefore they maintain their low friction characteristics.


I have to stretch my seal two to three times its internal diameter (ID), will this affect the performance of PolyMod® or UltraMod™?
Since these are polymer modifications and not a surface coating, PolyMod® and UltraMod™ are unaffected by stretching which can crack and weaken surface coatings.  Of course, you must be cognizant of the elongation limits of the base elastomer.  Polymer modification does not improve this.  Thus, if the material has an elongation limit of 120%, you cannot stretch it 175%.


What are some areas where PolyMod® and UltraMod™ materials are used?
PolyMod® and UltraMod™ materials, as either seals or other components, are used in a wide variety of applications.  Some examples are:

  • Primary flight controls & landing gear
  • Brake systems 
  • Shock struts                
  • Positioning devices                 
  • Valves: spool, poppet, bullet nose check, toggle                     
  • Hydraulic & pneumatic cylinders: short & long stroke
  • Accumulators
  • Sterilizers
  • Syringes
  • Stem seals


Can you PolyMod®  fluorosilicone or silicone materials? 
While the PolyMod® process can be performed on most thermoset and thermoelastic materials, such as nitrile (NBR) and ethylene proplyene (EP, EPDM), it cannot be performed on fluorosilicone or silicone.


I have an application using a FKM (fluorocarbon) seal and I need lower friction and improved wear.
Should I use a PolyMod® FKM seal or an UltraMod™ FKM seal?

UltraMod™ was developed specifically for FKM materials and will give you the lowest friction possible and improved wear life. UltraMod™ FKM seal is the recommended choice.



PolyMod® Technologies Inc.

AS9100D & ISO 9001:2015
Registered QMS

P.O. Box 10180
Fort Wayne, IN 46851-0180 USA
Phone : +01 (260) 436-1322
Fax : +01 (260) 432-6051
Email : sales@polymod.com