A professional who cleans, preserves, restores, and repairs objects made of glass, porcelain, china, fired clay, and other ceramic materials. Responsibilities include:

• Coats excavated objects with surface-active agents to loosen adhering mud or clay and washes objects with clear water.
• Places cleaned objects in dilute hydrochloric acid or other solution to remove remaining deposits of lime or chalk, basing choice of solution on knowledge of physical and chemical structure of objects and destructive qualities of solvents.
• Cleans glass, porcelain, or similar objects by such methods as soaking objects in lukewarm water with ammonia added, wiping gilded or enameled objects with solvent-saturated swab, or rubbing objects with paste cleanser.
• Rubs objects with jewelers' rouge or other mild cleanser, soaks objects in distilled water with bleach or solvent added, or applies paste or liquid solvent, such as magnesium silicate or acetone, basing choice of method and material on age, condition, and chemical structure of objects, to remove stains from objects.
• Recommends preservation measures, such as control of temperature, humidity, and exposure to light, to curatorial and building maintenance staff to prevent damage to or deterioration of object.
• Impregnates surfaces with diluted synthetic lacquers to reduce porosity of material to increase durability of ancient earthenware.
• Restores or simulates original appearance of objects by such methods as polishing surfaces to restore translucency, removing crackled glaze and applying soluble synthetic coating, grinding or cutting out chipped edges and repolishing surfaces, or applying matt paints, gold leaf, or other coating to object, basing methods and materials used on knowledge of original craft and condition of objects.
• Repairs broken objects, employing such techniques as bonding edges together with adhesive, inserting dowel pins in sections and cementing together, or affixing adhesive coated strips to inner portions of broken objects.
• Replaces missing sections of objects by constructing wire frames of missing sections, shaping plasticene or other materials over frames, affixing modeled sections to objects with dowels or adhesive, and painting attached sections to reproduce original appearance.
• Constructs replicas of archaeological artifacts or historically significant ceramic ware, basing construction design on size, curvature, and thickness of excavated shards or pieces of objects available and knowledge of techniques and designs characteristic of period.