Upasil® 20 blue cf is used where products must be protected from moisture.
Upasil® 20 blue cf changes the color from blue to pink when the silica gel is saturated.
Upasil® 20 blue cf is available in bead form (2-4 mm). The pH of the Indikatorgels is 4 to 8.
Upasil® 20 blue cf contains a mixture of various indicators and is free of cobalt (II) chloride. Therefore, the classification as hazardous deleted.