Metal Etchant


SUS Etchant

Sand Blast-219ST is an etchant which is used for sand blast process of SUS surface with wet corrosion method. SB-219ST is developed considering effects on human body and environment, provides high quality surface by etching, and does not corrode material and facilities.


• Provides easier working condition compared to dry corrosion method
• Provides clean surface by removing oxide scale etc. at the same time of etching
• Nearly no acid gas generated, and no excessive corrosion of material and facilities
• Easy to do post process such as filming, etc.

[ Properties and method ]

Appearance Brown transparent liquid Concentration Original/undiluted
Odor Unique odor Temp. Room temp. ~ 60℃
pH(1%) 1.0 ± 0.5 Method Dipping, spray
S/G (g/ml) Packing 20kg (pail)  /  200kg (drum)

[ Etching process ]

[Wet corrosion S/B result – SEM analysis ]

Wet corrosion S/B treatment result of SUS sample: SEM (x3,000)
After wet corrosion S/B