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配方類型： METALS AND TREATMENTS
配方說明： Etching Type Aluminum Cleaner
配方組成： Citric acid/10
Water/73
Methyl "Cellosolve"/6
"Renex" 30/10
Hydrofluoric acid (48%)/1
配制方法： At point of use it should be diluted 1:4 with water for cleaning operation. After 3-4 min it should be thoroughly rinsed off. The hydrofluoric acid acid is present to aid inn the removal of solid soil on the aluminum to give off hydrogen gas which simulates mechanical action on the soil.
Note: Care should be exercised in the handling of hydrofluoric acid.

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