Single-piece, high Durometer, extrusion resistant seals.
Various sizes, colors, Durometer could be available.
SPEC SHEET: Urethane 90 Durometer.
Durometer grades available.
Shore hardness tester Durometer Test Stand shore A shore D.
HNBR o-rings are available in 70 Durometer, 80 Durometer, and 90 Durometer.
Testing equipment: Projecting apparatus, salt spray test, Durometer, and coating thickness tester.
Below, is an extrusion chart providing the pressure limits by gap and Durometer of o-ring.
Hardness test block for Durometer shore A shore D Durometer test block Kit Shore A Hardness Block.
If the trade-offs of gap design and Durometer do not work,
the use of backup rings are recommended to overcome extrusion issues.
Researchers tested skin firmness
in the forehead and cheek region with a device called a Durometer, and tallied the number
and depth of face and neck wrinkles at 11 sites.