Sculpey, also known as polymer clay, is a sculpting material that is made of PVC particles that are suspended in plasticiser. Polymer clay is typically available in solid form, but liquid Sculpey can also be purchased. The liquid polymer clay has a sticky quality and is used to join two solid polymer clay pieces or to apply decorations on polymer clay objects or sculptures made out of other materials.
- Skill level:
- Moderately Easy
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Things you need
- Pigments or oil colours
- Wooden craft stick
- Needle tool
- Heat gun
- Airtight containers
Prepare the solid Sculpey pieces you want to join using liquid Sculpey. Allow the pieces to be leather dry before joining them with liquid Sculpey.
Tint the liquid Sculpey with the desired colour. Liquid Sculpey is translucent, but may be tinted with natural pigments, oil colours or glitter. Use a small glass dish and mix the liquid clay and colour with a wooden craft stick. Add colour until you get the desired shade. If you want to use transparent clay, skip this step.
Make a crisscross pattern with a needle tool on the edges of the pieces you want to join. Use a paintbrush to spread liquid Sculpey on the edges and press the pieces together.
Glue stones or other decorative items onto solid polymer clay objects by applying a thin layer of liquid Sculpey to both the back of the stone and the clay item. Press the stone and the clay object together.
Repair cracks on the surface of a polymer clay object by applying liquid Sculpey with a paintbrush. If you need a thicker consistency, expose the liquid to air or keep it in a loosely covered container for several days or weeks.
Use a heat gun to set the clay if you used the liquid clay on rounded surfaces.
Fire the liquid polymer clay at temperatures below 148 degrees C (typically 135 degrees C, but temperatures may vary depending on the manufacturer) for 15 to 20 minutes. Previously fired solid polymer clay items may be fired several times.
Tips and warnings
- Wear latex gloves, because the liquid Sculpey is sticky and difficult to remove from skin.
- Fire the Sculpey in a well-ventilated area.
- Store leftover liquid Sculpey in airtight containers made of glass or metal.
- Clean fresh drips of Sculpey with paper towels. Use 91% isopropyl alcohol to clean dried stains of liquid Sculpey.
- Add a glossy finish to a polymer clay object by applying a thin layer of translucent liquid clay and firing the piece again.
- Liquid Sculpey adheres to paper mache, metal, glass or ceramic surfaces, so you can use it as a glaze or to glue things on these surfaces.
- Use liquid Sculpey to soften solid polymer clay.
- Don't tint the liquid Sculpey with water-based colours because the water evaporates when the clay is fired and the object will have a rough texture.
- Use only heat-resistant glitters or powders when colouring the liquid clay.
- Never store the liquid Sculpey in styrofoam or hard plastic containers, because the compounds of Sculpey may react with the containers.
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