Mastering Polymer Clay: Setting Stones Tutorial

Setting stones in polymer clay is a captivating technique that allows you to embed real stones, crystals, or beads into your polymer clay creations, adding a touch of natural beauty and uniqueness. This method is popular among jewelry makers, sculptors, and mixed media artists, as it offers endless possibilities for combining natural and man-made materials. In this comprehensive guide, we'll delve into the world of setting stones in polymer clay, exploring tools, techniques, and tips to help you master this skill.

Before we dive into the nitty-gritty of setting stones, let's first discuss the benefits of incorporating them into your polymer clay art. Stones and crystals not only enhance the visual appeal of your pieces but also bring their unique properties and energies. By setting stones in polymer clay, you can create stunning pendants, earrings, bracelets, or decorative objects that tell a story and connect you to the natural world.

Choosing the Right Stones and Clay

Selecting the appropriate stones and polymer clay is crucial for a successful setting process. When choosing stones, consider their hardness, shape, and size. Soft stones like turquoise or malachite may crumble or break during the curing process, while hard stones like quartz or garnets are more durable. Opt for stones with flat or slightly rounded backs for easier embedding.

Polymer clay comes in various types, each with its unique properties. Sculpey, Fimo, and Kato Polyclay are popular brands known for their versatility and quality. For setting stones, it's recommended to use oven-bake clays like Sculpey or Fimo, as they provide better adhesion and durability. Kato Polyclay, a low-temperature clay, is also an excellent choice for setting stones, as it allows for more intricate designs and prevents stone damage due to lower curing temperatures.

Preparing Your Stones

Before embedding stones in your polymer clay, it's essential to prepare them properly. Start by cleaning your stones to remove any dirt, oils, or residue. Use mild dish soap and warm water, then rinse and dry them thoroughly. Next, lightly sand the backs of your stones using fine-grit sandpaper (220-320 grit) to create a rough surface that will adhere better to the clay.

If your stones have sharp edges or points, gently smooth them using a nail file or a fine-grit sanding sponge. This step ensures that your stones won't cut through the clay during the embedding process and makes them safer to handle. Finally, wipe your stones with rubbing alcohol to remove any dust or oils and allow them to air dry completely before use.

Preparing Your Polymer Clay

Conditioning your polymer clay before use is essential for achieving the best results. Knead the clay with your hands to warm it up and make it more pliable. This step helps eliminate air bubbles and ensures even curing. If you're using colored clay, you can mix different colors to create unique shades or patterns. Keep in mind that adding too much color may affect the clay's adhesion properties, so it's best to stick with lighter colors or use translucent clay for setting stones.

Once your clay is properly conditioned, roll it out to your desired thickness using a pasta machine or a clay roller. The ideal thickness depends on the size and shape of your stones, but generally, a thickness of 1/8" to 1/4" works well for most applications. If you're creating a specific design or pattern, you can cut your clay sheet into shapes or use cookie cutters to create uniform pieces.

Setting Stones in Polymer Clay

Now that you've prepared your stones and clay, it's time to embed the stones into your polymer clay creations. There are several techniques for setting stones, each with its unique advantages. In this section, we'll explore two popular methods: inlay and surface setting.

Before you begin, gather your tools, including a clay blade or craft knife, a rolling pin or clay roller, a clay cutting board, and a clay needle tool for making holes and creating textures. You may also need a clay shaper or a ball tool for shaping and smoothing your clay.

Inlay Technique

The inlay technique involves embedding stones within the clay, creating a smooth, flush surface. This method is ideal for creating seamless, professional-looking pieces with stones that are not too thick. To set stones using the inlay technique, follow these steps:

1. Create a template or sketch of your design, including the placement and size of your stones.
2. Roll out your polymer clay to the desired thickness and cut it into the shape of your design using a clay blade or craft knife.
3. Using a clay needle tool or a sharp pin, carefully poke holes in the clay where you want to place your stones. The holes should be slightly smaller than the stones to ensure a snug fit.
4. Gently press your stones into the holes, using your fingers or a clay shaper tool to ensure they are level with the surface of the clay. If necessary, use a clay needle tool to make the holes deeper or wider to accommodate your stones.
5. Once all your stones are set, use a clay shaper or a ball tool to smooth the surface of the clay, ensuring there are no rough edges or gaps around the stones.
6. Allow your clay piece to air dry for a few hours or overnight to prevent warping during baking. Then, bake it according to the manufacturer's instructions, usually between 275°F (135°C) and 325°F (165°C) for 15-30 minutes.

After baking, allow your piece to cool completely before handling it. If desired, you can paint or glaze your piece to enhance the colors and add a protective finish.

Surface Setting Technique

The surface setting technique involves attaching stones to the surface of your polymer clay creation, creating a textured, dimensional look. This method is perfect for setting larger stones or creating unique, mixed-media pieces. To set stones using the surface setting technique, follow these steps:

1. Roll out your polymer clay to the desired thickness and cut it into the shape of your design using a clay blade or craft knife.
2. Using a clay needle tool or a sharp pin, apply a small amount of pressure to the back of each stone to create a slight indentation in the clay. This step helps to anchor the stones and ensures better adhesion.
3. Apply a small amount of liquid clay or polymer clay medium to the backs of your stones using a paintbrush or a clay needle tool. This adhesive helps to secure the stones to the clay surface.
4. Press your stones gently onto the clay, positioning them as desired. Use your fingers or a clay shaper tool to ensure they are level with the surface of the clay. If necessary, use a clay needle tool to create additional indentations or to adjust the position of the stones.
5. Allow your clay piece to air dry for a few hours or overnight to prevent warping during baking. Then, bake it according to the manufacturer's instructions, usually between 275°F (135°C) and 325°F (165°C) for 15-30 minutes.

After baking, allow your piece to cool completely before handling it. If desired, you can paint or glaze your piece to enhance the colors and add a protective finish.

Finishing Touches

Once you've set your stones and baked your polymer clay creation, it's time to add the finishing touches. Sanding, buffing, and painting or glazing are essential steps to ensure a professional, polished look for your piece.

Start by gently sanding the edges and surface of your creation using fine-grit sandpaper (220-320 grit) or a sanding sponge. This step helps to smooth any rough edges and creates a smooth, even surface for painting or glazing. Wipe away any dust with a damp cloth, and allow your piece to dry completely.

Sanding and Buffing

Sanding and buffing are crucial steps for achieving a smooth, glossy finish on your polymer clay creation. Begin by sanding your piece using progressively finer grits of sandpaper, starting with 220-grit and working your way up to 6000-grit wet/dry sandpaper. Wet sanding is recommended for achieving a smooth, glass-like finish, as it helps to remove scratches and reveals the true color of the clay.

After sanding, buff your piece using a soft cloth or a buffing pad to bring out the shine and create a smooth, polished surface. You can also use a polishing compound or a rubbing alcohol-based solution to enhance the gloss and protect your piece. Be sure to buff both the front and back sides of your creation to ensure an even, consistent finish.

Painting and Glazing

Painting or glazing your polymer clay creation is an optional but rewarding step that can enhance the colors and add a protective finish. Acrylic paints, alcohol inks, or polymer clay-specific glazes can be used to create stunning, unique effects on your piece.

Before painting or glazing, ensure your piece is clean and free of any dust or oils. Apply a thin, even coat of paint or glaze using a paintbrush or a sponge, working in small sections to avoid creating streaks or bubbles. Allow the paint or glaze to dry completely between coats, and apply additional coats as needed to achieve the desired coverage.

Once your piece is painted or glazed, allow it to dry completely before handling it. If desired, you can seal your piece with a clear acrylic sealer or a varnish to protect the paint or glaze and add an extra layer of shine.

Setting stones in polymer clay is a versatile and rewarding technique that allows you to create stunning, unique pieces that showcase the beauty of natural stones and the versatility of polymer clay. By mastering the techniques and tips outlined in this guide, you'll be well on your way to creating breathtaking jewelry, sculptures, and mixed-media art that combines the best of both worlds – the natural and the man-made.

Don't be afraid to experiment with different stones, colors, and designs to create truly one-of-a-kind pieces. The possibilities are endless, and the satisfaction of creating something beautiful and meaningful is a reward in itself. Happy creating!