Anodize CleAning TesTs
Chart 5
Seal 1
Seal 2
Seal 3
Seal 4
Seal 5
Seal 6
Seal 7
Seal 8
Sanodal Red B3LW
Seal 9
Seal 10
See Photo
Sanodye Blue G
Sanodal Green 3LW
See Photo
Sanodal Deep Black HBL
Sanodye Yellow 3GL
See Photo
Sanodal Turquoise PLW
Inorganic Gold
See Photo
Inorganic Blue
See Photo
Inorganic Maroon
See Photo
Inorganic Bronze
See Photo
Inorganic Black
See Photo
Degree of Fading:
Some
None
Most
Complete
Panels were alkaline soak cleaned, etched, deoxidized, and anodized for 45 min. at 15 amps per
sq. ft. to create a porous coating measuring 0.7 – 0.8 mil thick.
Red B3LW
Inorg.Gold
Yellow 3GL
Green 3LW
the dyes from fading. The MHBD seal (No.9) clearly proved
to be the best performer, allowing virtually no color deterioration of the red, green and yellow dyed coatings. As
described earlier, this two-step seal process included a
standard cold seal followed by a boiling silicate-type seal.
In addition to color retention, this seal provides improved
alkali resistance, which can be expected to help protect the
finish from harsh detergents used to clean the equipment
prior to sterilization.
For the most part, this study showed that inorganic
colors were unaffected by Sterrad sterilization. The gold,
blue, bronze, maroon and black easily pass the visual
test for color degradation. Although this is not an altogether surprising result, it was interesting to prove none
the less.
With the exception of the Prussian blue, even the color
of the unsealed panels were unaffected by the sterilization cycles. This suggests that other inorganic treatments
including integral coloration such as hard coat processing,
and interference coloration would produce similar results.
Inorg. Blue
Inorg. Bronze
Inorg. Maroon Inorg. Black
Mark Jozefowicz is vice president of Technical Services for
Reliant Aluminum Products. He can be reached at
mark.jozefowicz@reliantaluminumproducts.com. Thanks
to Chris Coker and his colleagues at Advanced Sterilization
Products, Division of Ethicon, Inc. a Johnson & Johnson
company, for running the lengthy Sterrad test program.
New Anodizing Technology for
Reusable Medical Equipment
A new micro-crystalline aluminum anodic coating packs
molecules in a regular, ordered and repeating pattern
that makes it suited for reusable medical instruments,
equipment and devices that require repeated
cleaning and sterilization because of its enhanced
chemical stability.
http://www.pfonline.com/articles/new-anodizingtechnology-for-reusable-medical-equipment
PRODUCTS FINISHING
— pfonline.com
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