Aluminum Etchants

2% HF (Alpha Case)

• ASTM formula 11, attacks FeAl3, other constituents outlined. Contains hydrofluoric acid as the name implies.


AWS D1.2 Basic Etchant

• Listed in AWS welding code, two times faster than the Caustic etching solution. Contains no hydrofluoric acid.

 

Caustic Etching Solution

 • ASTM formula 177, a macro etchant for visual inspection of aluminum welds. Contains no hydrofluoric acid.

 

Keller's Reagent

• ASTM formula 3, the most popular general purpose micro etchant for aluminum alloys, show microstructure and grains. Contains hydrofluoric acid.

1 - 9 of 9 items
Sort By: