O-Ring loaded style U-cup combined with superior physical characteristics of a liquid cast polyurethane to produce the second best seal for use in standard hydraulic fluids.

Our U-Pack is the best seal. Thermosetting Unithane 292A is a Moca Cured liquid cast polyurethane which outperforms injection molded grades of polyurethane in all aspects including cut strength, abrasion resistance, compression set and temperature range.


  • No embedded Air Bubbles
  • Knife trimmed lips
  • 4-6 weeks delivery on tooled sizes
  • No tooling on standard sizes
  • Price Competitive - Price advantage on first orders over our Loaded U-Pack