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Urethane polishing pad

EXTERION™ pads are made of an advanced urethane with ceria filler, specifically formulated to meet the needs of different glass and optical polishing applications. The unique and controlled pore structure differenciate them from competitor pads in both performance and pad wear/lifetime. EXTERION™ pads provide significant advantages in achieving consistent, reproducible polishing results.


Base Material  Urethane

Shelf Life  12 months

Packaging  Pads are packaged face-to-face (polish side to polish side) and sealed inside a plastic bag to ensure cleanliness during transportation. The bags are taped to the side of the box to prevent the bag from slipping and damaging the pads. Pads should always remain flat. Bending pads during handling can cause wrinkles in the PSA and premature delamination of the release liner.

Applications  Acryllic, aluminosilicate, APEX, BK7, BK9, borofloat, borosilicate, ceramic, crystal, quartz, glass, gorrilla, leaded crystal, phosphate, pyrex, SF6 flint, soda lime - float, zinc borosilicate

  • EXTERION™ C74A has a lower density and pore count to improve the scratch rate and surface quality.
  • EXTERION™ C76C has a higher density and pore count, which results in higher removal rates.

Similar products

Base material Urethane Urethane
Compressibility % 3.0 3.0
Hardness 78 86
Hardness test JIS-A JIS-A
Density (g/cm3) 0.4 0.6

The data presented is a statistical representation for comparison purposes. The values are not necessarily representative of the COA specifications.

Exterion is a registered trademark of Nitta/DuPont and is used under license by Pureon Inc. Pureon is an authorized distributor for DuPont.


For more detailed information, download our datasheet:

Interested in our polishing pads for advanced materials?


We are happy to share our knowledge with you and remain at your disposal for any further questions.

Adam Nielsen

Product Manager Polishing Pads for Advanced Materials