What is iridite of aluminum?
Iridite (also known as alodining,
chemfilming, and aluminum chromate) is the chemical
application of a protective chromate conversion coating on
aluminum. This is done by immersing the aluminum into
a gold colored or clear chromate chemical.
Why should you iridite aluminum?
- Iridites gives good corrosion
protection. It even protects when scratched. A fully
processed iridited aluminum withstands salt spray
150-600 hours before forming white corrosion. Untreated
aluminum corrodes in less than 24 hours.
- It provides an excellent
electrically conductive surface. This helps to provide
good electrical bonding in an airframe.
- Paint sticks to it extremely well
and is often used as a paint primer.
Advantages of iridite of aluminum
compared to other coatings such as primer or anodizing:
- Adds no measurable weight.
- Does not alter the dimensions of
parts (does not make holes smaller).
- Requires no electricity
- Parts can be iridite in a bulk
setting using plating barrels
Disadvantages of iriditing of
aluminum:
- The alodined surface is not as
durable as anodizing or a good paint.
- Assembled parts will not iridite
as well as disassembled parts.
How large are the iridite tanks?
We have alodine tanks for both clear
Class 3 and gold Class 1A. Each tank is 10 feet long
and can accommodate almost all parts in the industry.
Do we offer ROHS compliant iridite?
We do offer this process but in a
smaller 3 foot long tank
How much does getting your parts
iridited cost?
Compared to getting parts plated or
anodized, aluminum chromate is fairly cost effective.
The cost will vary due to size of part and the amount of
parts you send us at one time. How easy or how
difficult the parts are to handle and rack on a fixture will
also play into the pricing.
What are the specifications for
iridite can we do?
We adhere all our work to MIL spec,
even if the job does not require us to do so. We do
the following iridite specifications:
MIL-C-5541 Class 1A, MIL-C-5541 Class 3, MIL-DTL-5541
DPS9.45
PHONE: 410-633-0030
EMAIL:
sales@anodizingservice.com
