Anodizing Clinic
Larry Chesterfield

Larry Chesterfield

Larry Chesterfield is president and owner of Anodizing Technologies Inc. With 21 years in business, ATI designs, builds and installs turnkey facilities for aluminum anodizing, titanium anodizing and other metal finishing processes. The company prides itself on providing more than just anodizing equipment—service extends to project management and anodizing technical consulting.

Prior to ATI, Larry was on the other side of the business—he spent 25 years as owner-operator of a large job shop aluminum anodizing, electrostatic painting and aluminum fabrication business.

Larry is also the co-inventor of a patented anodizing process called “High Absorptance, High Emittance Anodic Coating,” a passive thermal control coating used on the International Space Station. The anodized coating controls the surface temperature of aluminum tool bodies and other parts affixed to the exterior of the space station that are subject to thermal changes between the light and dark sides of earth orbit. This makes these space station maintenance tools safe for the astronauts to handle

Larry holds a California “Class A” contractor’s license and has been an active member of the Aluminum Anodizers Council for many years, and has authored various technical papers about anodizing.

Got a question for Larry? Send him an email.

The latest from the Anodizing Clinic

Adhesion of Applied Organic Coatings

Our expert addresses an amalgamation of many different questions from folks who are baffled and frustrated by this adhesion problem on their anodized parts.

Ask an Expert Published: May 08, 2014

Racking Without Visible Rack Marks

What is the process of racking a machined part to be anodized with no visible rack marks?

Ask an Expert Published: February 03, 2014

Food-Grade Anodic Coatings

Anodizer looks for certification that an anodic coating is safe to use with food.

Ask an Expert Published: January 27, 2014

Appearance of Clear Anodized Coatings on 6061 Alloy

How do you achieve clear anodizing that is bright and clear?

Ask an Expert Published: January 20, 2014

Protection from Laser Marking on Aerospace Parts

We have a number of aluminum alloy aerospace products that are finished using either chemical film (MIL-C-5541) or anodizing in accordance with MIL-A-8625. Do we need to touch up the areas where laser markings have been placed in order to preserve the corrosion protection?

Ask an Expert Published: October 25, 2013

Clear Anodize as a Paint Base

Our parts are generally Type III (hardcoat) anodized, sometimes duplex-sealed and sometimes unsealed. Our end-products are subject to sea water, and we try to adhere paint and polyurethane potting compounds to some of the parts. Would paint adhesion or adhesive bonding be enhanced by abrasive blasting prior to anodizing, maybe at 30 to 60 grit?

Ask an Expert Published: October 23, 2013

Pitting on 7000 Series Al Alloy

In the last year, we’ve had a string of anodized parts come back from the finisher that are “pitted.”

Ask an Expert Published: July 26, 2013

Black, Pitted Areas on Anodized Parts

We anodize aluminum cookware and have recently been getting parts with black pits scattered all over them. What is this and how might it be happening?

Ask an Expert Published: May 06, 2013

“Water-Break-Free” Test

What is a “water-break failure” test?

Ask an Expert Published: May 03, 2013

Sealing Parts After Two Months

Is it possible and practical to seal hardcoat anodized (Type III) parts that have been in storage for about two months?

Ask an Expert Published: April 29, 2013

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