Products & Services

Protocase manufactures fully finished custom electronic enclosures and associated parts from a wide variety of materials and components, in 2-3 days with no minimum order. Protocase also provides expert and affordable enclosure design services.

Materials, Components & Finishes


Protocase is pleased to offer Type II anodizing. Also known as common or standard anodizing, Type II is sulfuric acid anodizing (as opposed to Type I anodizing, which is chromic acid anodizing).

Type II anodizing includes two different classes:

  • Class I signifies an un-dyed finish, also called clear or natural
  • Class II signifies a dyed finish and the color is named ( i.e.: Type II Class II Red )

Anodized Aluminum Parts
Anodized Aluminum - Orange Dye
Anodized Aluminum - Orange Dye
Anodized Aluminum - Orange Dye
Anodized Aluminum - Black Dye
Anodized Aluminum - Black Dye
Anodized Aluminum Colors Anodized Aluminum - Black Dye Anodized Aluminum - Red Dye
Anodized Aluminum - Blue Dye Anodized Aluminum - Tan Dye
Anodized Aluminum - Taupe Dye Anodized Aluminum - Gold Dye
Anodizing Tank Anodizing Tank

What is anodizing?

Anodizing is an electro-chemical process used to prepare the surface of non-ferrous metals, most commonly aluminum, to make the surface harder and less likely to corrode.

The anodized surface actually becomes part of the aluminum; therefore it will never peel, chip, or flake off and under normal use, and will never wear through.

What do we anodize?

Protocase typically anodizes sheet metal parts that have been fabricated in our facility from any of our stocked aluminum. See stock here.

We would also be happy to anodize parts that have been fabricated or machined elsewhere.

How do we anodize?

The process involves an acid bath and electricity which, when used together, is a controlled oxidization that enhances the naturally occurring oxide layer on aluminum. It is this controlled oxidization that makes the oxide surface thicker and therefore, stronger.

The aluminum is secured to racks and then lowered into an acid bath. An electric current is then passed through the racking and into the aluminum part. The anodized aluminum can be left in its natural color, or dyed from many color choices, using organic dyes.

In addition to clear/natural Type II anodizing (Class I), we offer the following Class II color choices:

  • Black
  • Red
  • Blue
  • Tan
  • Taupe
  • Gold
  • Orange

Size Restrictions:

Our standard methods can process components of aluminum with maximum dimensions of 30" x 30" x 45" (760mm x 760mm x 1140mm).

For oversized parts, please contact your Protocase account manager to discuss your order.

Why anodize?

There are many advantages to choosing an anodized finish for your enclosure, part or component:

Durability: Because anodizing creates an extremely hard surface, the finished product will have a very long lifespan and require very little maintenance.

Aesthetics: Color (Class II) anodized aluminum maintains its vibrancy in spite of prolonged exposure to UV rays, and will not chip or peel.

Resistance: Anodized aluminum is resistant to corrosion, heat and electricity.

Environmental: Anodizing produces a non-toxic finish, with no harmful by-products.

Lead Times:

Anodizing is completed off-site via a third party supplier. This means there is additional lead time.