Element's chemical etching (or chemical milling etching) can help reveal hidden abnormalities or defects such as cracks, laps or corrosion in a material or component.

What is chemical etching? 

Chemical etching is a form of processing that uses acids, bases or other chemicals to remove layers of a material or clean unwanted substances from a part or test sample. 


Chemical etching services 

Element provides chemical etching as a standalone method and as preparation for a range of test types and inspection techniques. 

Our trusted experts have experience with different types of advanced chemical etching, including aluminum cleaning etch, anodic etch, blue etch anodize (BEA), nital etch and pre-penetrants etch. We also offer the chemical etching of nickel parts (nickel etch) and materials to perform material segregation and defect inspection.


Advantages of chemical etching 

Identifying material imperfections before submitting the sample to non-destructive testing (NDT), mechanical testing, metallography, microscopy or other analytical techniques can help save time and cost for manufacturers.


The Element advantage 

Our experienced experts provide etching and other chemical processing services for a number of industries, including aerospace, defense, transportation and power generation.

For more information about our chemical etching services or to request a quote, contact us today.

Our Chemical Etching Services

Element offers a variety of chemical etching services, including anodic etch, blue etch anodize and nital etch.


Ammonium Persulfate

Cupric Chloride

Ferric Chloride

Hydrochloric Acid

Hydrofluoric Acid

Hydrogen Peroxide

Nital (nitric acid and alcohol)

Sodium Hydroxide 

ASTM International

ASTM A262 (Practices A, B, C, & E), ASTM E3, ASTM E340, ASTM E381, ASTM D3759, ASTM E407, ASTM E45, ASTM A561, ASTM A604, ASTM E646, ASTM A763

SAE International

AMS 2642, AMS 2643


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