Hydrated Lime - High-Temperature Mortar IngredientThe Hydrated Lime used in the High Temperature Mortar mix can be any one of the following types: Type S Lime (most common) Type SA Lime Type N Lime Type NA Lime Builders Lime Contractors Lime Hydrated Lime Masons Lime Powdered Lime Pulverized Lime Quiklime This is the product that confuses some of our customers. It is NOT granulated Lime that is sold in the plant section at Home Depot or Lowes but a white and fluffy material that looks and feels like