• Manufacturing of Metal Pretreatment Chemicals

Pretreatment for Aluminium Casting

Degreasing

Removal of oil grease & oxide layer from aluminium surface.

Product Description Concentration Time Temperature
Metal Cleaner
ALC-15
Acidic base degreasing suitable for Aluminium casting 10 - 15% V/V 5-10 min Room temp.
Remarks :- For light to heavy oil metal cleaner ALC-15 may be used. This does not require deoxiding process.

Chromatising

Gives amorphous chromate coating on aluminium casting surface.

Product Description Concentration Time Temperature
Metal Cleaner
Chrome-26
Chromium Oxide coating - Yellow in colour 2 - 3% V/V 2-3 min Room Temp.
Metal Cleaner
Chrome-28
Chromium phosphate coating - Green in colour 2 - 3% V/V 2-3 min Room Temp.

Pretreatment of aluminium casting