COATING                  CHEMISTRY                          EMPIRE PRODUCT #      HARDNESS & APPLICATIONS

Cr₂O₃

Black Finish

Pure Chromium

Oxide

Cr₂O₃5SIO₂3TIO₂

Dark Grey to Black Finish

136F & LC-4 Equiv

Chromium Oxide - 99% min

Silicon Oxide - 5%

Titanium Oxide - 3%

Chromium Oxide - 92%

EMSPR-CRO167-1

EMSPR-CRO178

EMSHU-HC-15

EMSPR-CRO192

EMSSE-0136F

EMSHU-HC386T

Rc75.

Hard & dense coating excellent for wear resistant applications.

Resistance to most acids, alkali's, & alcohol up to 1000°F (540°C).

Rc75.  Hard & dense against abrasion, hard surfaces, cavitation, & particle erosion.

Similar to Cr₂O₃ & resists impact or mechanical shock better with excellent low friction characteristics.

Resistant to most acids, alkali's, & alcohol up to 350°F (175°C).

The following product trademark and registered trademark names are mentioned only for reference purposes.  To the best of our knowledge they are marks of the respective owners:

Metco® is a register trademark of Oerlikon Metco, Inc.

COATING                  CHEMISTRY                          EMPIRE PRODUCT #      HARDNESS & APPLICATIONS

Ti0₂

Black Finish

Pure Titanium Oxide

Titanium Oxide - 99% min

EMSBR-01097F

EMSHU-510

Rc53.  Moderate abrasive wear resistance.  Soluble in alkali's &

H₂SO₄ but resistant to attack in many other environments.

Slightly Conductive.  Static electricity does not build up on the coating surface.

Lowest in wear resistance of any of the oxide ceramics.

Do not use where exposed to temperatures higher than 1000°F (538°C).

Coatings of titania & coatings containing a significant percentage of titania undergo a phase change at temperatures higher than 1000°F (538°C), which causes embrittlement & cracking of the coating.