Calcium hydroxide is the chief ingredient in many cavity liners and bases because of all of the following characteristics; except:
Calcium hydroxide is the chief ingredient in many cavity-liners and cement-base materials because calcium hydroxide is antimicrobial, has an elevated pH (basic,  alkaline),  and stimulates the formation of secondary dentin over an injured pulp to protect it over the long term.
Elevated pH
Stimulator of secondary dentin formation
Antimicrobial
None of the above