SemcoŽ Pasa-Jell 102 is a blend of mineral acids, activators, and inhibitors. It does not contain fl uorides and can be used in applications where fl uorides are prohibited. SemcoŽ Pasa-Jell 102 is designed to clean and passivate aluminum and aluminum alloys. It accomplishes the passivation by removing foreign materials and corrosion products that could set up local cells and cause pitting corrosion, and by forming an extremely thin but corrosion-resistant adherent oxide fi lm on the metal. SemcoŽ Pasa-Jell 102 can also be used to remove anodized coatings from aluminum, although it does not act as rapidly as SemcoŽ Pasa-Jell 101. When spot removing anodized coatings, it will stay in place without running onto adjacent areas.