Press Room Shopping Cart Login Craftsmanship Marks Glossary Appraising Cleaning Repairs Ask M.I. Hummel Birthday Card Contest Home > Member's Lounge > Studio > Craftsmanship Craftsmanship The Sculptor's Hand The process begins when a Goebel master sculptor studies a carefully selected drawing or painting by Sister Hummel. Because the drawing has only two dimensions, the sculptor must be able to imagine unseen details and execute them in clay in a style consistent with the Sister's vision. The sculpting may take many weeks, and during that time, a new and original work of art takes shape. The finished model is presented to the Artistic Board at the Convent of Siessen. Making the Molds The sculptor and master moldmaker determine where the figurine should be cut so the moldmaking process can begin. A figurine may be cut into as many as 40 pieces for ease of production. The pieces of the figurine are embedded in clay. Plaster of paris is poured over them to make the master mold. A series of positive and negative plaster molds is made, leading to the creation of a durable acrylic resin working model. From the working model, a plaster of paris working mold is made. It can be used only for a limited time before eroding. New working molds are created from the working model as needed. Casting & Assembling Liquid ceramic, known as "slip," composed of kaolin, feldspar, clay, quartz and water, is poured into the plaster working molds. The plaster absorbs moisture from the slip. As the slip thickens, it creates a hollow ceramic shell of the figurine. The excess slip is poured out, and the moist shell is removed for assembly into a completed figurine. The pieces are joined using slip as a sort of glue, then smoothed to remove all seams. The assembled figurines dry for about one week. Kiln Firing Each figurine is fired at intense temperatures at least three times during the production process. The kilns are heated and cooled gradually -- sudden temperature changes can damage the figurine. The first firing at 2100°F transforms the moist figurine into its white bisque state. The figurines shrink in size and emerge wih a powdery white finish. Then the piece is hand-dipped and sprayed with a tinted liquid glaze. The second firing is at 1870°F. The figurine emerges glossy white, as the glaze has been melted into a thin, transparent skin of glass. After painting, the figurine will be fired again at 1407°F to permanently bond the color and create a soft matte finish. Figurines may undergo decor firings up to three times, depending on the colors used. Brushing on Color The paints used on each M.I.Hummel collectible are selected from several hundred hues specially developed to recreate the tones of Sister Hummel's artwork. The Master Painter prepares a decorated sample, which must be approved by the Convent of Siessen, to guide the highly-trained artists who paint the actual figurines. Since the figurines are painted by hand, each is unique. Paints are metallic oxide powders mixed as needed with balsam oil and turpentine. Brushes are made of natural hair. Quality Control The figurine creation process takes many weeks and may involve over 700 hand operations with many quality checkpoints. Every new M.I.Hummel figurine is created using this painstaking process, in accordance with the age-old Goebel tradition of quality handcraftsmanship. M.I. Hummel®, Hummel® and M.I. Hummel Club®, in signature and/or block forms, are registered trademarks of Manufaktur Rödental GmbH, Germany. M.I. Hummel figurines, plates and bells are copyrighted products. All products of Manufaktur Rö dental GmbH, Germany, are design-patented and copyright protected, all trademarks are registered. ©2010.