It is equivalent to Blue Harpic, Toilet bowl clenaer.
The following materials are used:
R.O. (Reverse Osmosis) Water
Hydrochloric Acid (32% concentration)
Acid Blue Colour Solution (can be made from Acid Blue color powder and water)
HEDP (Hydroxyethylidene Diphosphonic Acid) / Etidronic Acid
CAPB (Coco Amido Propyl Betaine)
CTAC (Cetyl Trimethyl Ammonium Chloride, 50% concentration)
Alphox-200
Methyl Salicylate
HRP Acid Thickene