Cold Porcelain (Biscuit) Honor

Arts & Crafts

Requirements

1. Make a list of the materials needed for cold porcelain (biscuit) art.

   Answer: You need cold porcelain dough (white glue, cornstarch, petroleum jelly, citric acid), acrylic or powder paints for coloring, a smooth non-stick base, a small modeling knife, sticks, a small rolling pin, silicone molds and brushes for finishing. — Cold porcelain dough was popularized in Argentina in the 1960s and reached Brazil through Argentine artisans based in São Paulo in the 1980s, according to official records of the SBA (Brazilian Craft Society).

2. Why is it important to have clean hands and to use hand cream when working with cold porcelain?

   Answer: The question has two parts: 1) Clean hands — dirt and the skin's natural oiliness stain the white dough, alter the color and texture and leave marks/fingerprints on the piece; clean hands ensure a clean and hygienic finish. 2) Hand cream — the cold porcelain dough dries out and sticks to the fingers during modeling; applying a thin layer of cream (neutral moisturizer) leaves the hands slightly lubricated, prevents the dough from sticking and cracking, makes smoothing easier and gives a smoother finish to the piece. Use little cream, since too much softens the dough too much. — Cold porcelain dough easily absorbs the natural oils of the skin, and moisturizing cream acts as a lubricating barrier, a technique spread by the Argentine masters Maria Adriana de Cabella and Adriana Garcia.

3. Explain the different techniques for coloring and painting the dough.

   Answer: There are three main techniques: 1) Tinted dough — mixing acrylic paint or powder pigment directly into the still-raw dough, kneading until the color becomes uniform; ideal when you want the whole piece colored and without the risk of peeling. 2) Painting after drying — modeling the piece in white dough, letting it dry completely (24-72h) and then painting the surface with acrylic paint and a brush; allows details, shading and gradients. 3) Dry-brush/chalk powder — applying pastel chalk powder or pigment with a dry brush or sponge over the dry piece to give volume, shine on the petals and soft effects. The techniques can be combined and finished with varnish to fix the color. — Direct pigmentation is faster but requires precise mixing, while painting after drying allows more control of fine details with tiny brushes, according to classic manuals such as Adriana Garcia's.

4. What kind of finish is used to protect and give a glossy appearance to articles made with cold porcelain?

   Answer: You use acrylic varnish in spray or brushed on, in thin layers after the piece is completely dry (usually 24-72h). — Spray acrylic varnish is the most used for its uniform application; it has quick drying (15-30 min) and forms a protective layer that increases the durability of the piece by up to 5 times, according to durability tests.

5. Make at least two of the following objects:
   • Ladybug
   • Flower
   • Articulated boy
   • Articulated girl
   • Note holder

   Answer: You model a flattened red ball as the body, mark the central division with a blade forming wings, make a smaller black ball for the head and attach it with PVA glue. Add small black balls as spots, antennae with thin wire and white eyes. — The ladybug (Coccinellidae) is an international symbol of good luck and a classic theme in cold porcelain for its simple shape and vibrant colors that teach basic modeling techniques to beginners in the modern art of cold porcelain today.

6. Make one of the following items using tinted dough:
   • Wedding favor
   • Baby shower favor
   • Themed cake topper
   • Small wall picture

   Answer: You prepare tinted dough in delicate colors (pearly white, light pink, baby blue) mixing well to avoid streaks. — Cold porcelain wedding favors gained popularity in the 1990s in Brazil for their durability and personalization, superior to traditional sweets or chocolates used at social events.

7. Make one of the following items:
   • Refrigerator magnet
   • Small flower pot
   • Kitchen jar
   • Trinket holder
   • Something of your choice

   Answer: You model a small piece (3-7 cm) with a pleasant theme, dry it for 24h on a flat surface, paint the details with acrylic paint and glue a strong magnet on the back with contact glue (do not use PVA). Apply acrylic varnish for the final finish. — Neodymium magnets have an adhesion strength up to 10 times greater than common ferrites, being recommended for cold porcelain pieces that need to adhere vertically to metal surfaces such as modern refrigerators in use today.