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WELCOME
TO DAV-TECH ANODIZING:
Anodizing is an electrolytic process that produces a
relatively inert coating on a metallic surface. When
aluminum alloys are anodized, this coating is an aluminum
oxide layer that is generated when the part is made
anodic in the presence of a controlled electrolyte.
It is the stability of the aluminum oxide that accounts
for all of the protective properties of the coating.
 DAV-TECH
SPECIALIZES IN ANODIC COATINGS ON ALUMINUM AND ALUMINUM
ALLOYS:
At Dav-Tech Plating we offer two types of anodizing
on aluminum. Each type produces a product with its own
specific performance qualities.
The first type is produced in a sulfuric acid bath,
and is therefore referred to as sulfuric acid anodize.
This coating is usually transparent with a thickness
range of .0001"-.001".
The second type is produced in a chromic acid bath and
is referred to as chromic acid anodizing. This anodized
coating is usually .0005"-.0003" in thickness
, and is used when corrosion protection is required
with minimal effect on fatigue strength of the substrate.
In most cases it is used in conjunction with a sealant.
Due to the opacity and thinness of the anodic film,
chromic acid anodize does not lend itself to color dyeing
as well as sulfuric acid anodize.
BENEFITS
OF DAV-TECH ALUMINUM ANODIZING:
-
Creates a clean surface by sealing the substrate.
- Excellent
corrosion resistance.
- Can
be used as a non-conductive finish.
- Can
be dyed or colored to improve product appearance.
- Close
dimensional control.
- Excellent
primer for most paints and coatings.
- Unless
otherwise requested,all anodizing is furnished in
accordance with MIL-A-8625.
DAV-TECH
PERSONNEL CAN PROVIDE EXPERT TECHNICAL ASSISTANCE IN
ALUMINUM ALLOY SELECTION:
The purer the aluminum selected to be anodized, the
more uniform the coating in terms of color and thickness.
Non-aluminum alloying components such as copper and
silicon will have an adverse effect on the anodizing
process, and produce a coating that may be shaded and
discontinuous.
Our experience shows that most anodizing problems are
related to improper alloy selection. Our technical staff
can recommend alloys that will maximize the required
anodic properties. Where the selection of materials
is limited, special process procedures can be developed
to ensure the anticipated performance.
Our cost-effective approach to resolving finishing problems
yields a high quality product at competitive pricing.
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