How to Fire Raku Pottery: 11 Steps
Introduction:
Raku pottery is a unique ceramic art form that emphasizes experimentation and individual expression. The pottery is often characterized by vivid colors, metallic surfaces, and crackle glazes. In this article, we will walk you through 11 steps on how to fire your Raku pottery creations.
1. Create Your Pottery
Before firing your Raku pottery, start by shaping your desired piece using traditional pottery techniques. Make sure to use special Raku clay, which has high grog content for extra thermal shock resistance during the firing process.
2. Allow the Piece to Dry
Allow your piece to dry completely before proceeding to the next step. This could take anywhere from a day to a few weeks, depending on the thickness and size of your creation.
3. Sand the surface
Prepare your Raku piece by sanding any rough edges and seams using a fine-grit sandpaper. This not only improves its visual appearance but also ensures its success in the firing process.
4. Apply Glazes and Oxides
Apply glazes, oxides, or other surface treatments to your Raku piece that will transform it into a visually stunning artwork after firing.
5. Preheat Your Kiln and prepare the reduction materials
Preheat your Kiln to around 1800°F (1000°C) which is the ideal temperature for Raku firing. Also, gather combustible materials such as sawdust and newspaper for reduction chambers.
6. Prepare Yourself for Firing
Wear appropriate protective gear during the entire firing process including heat-resistant gloves, long sleeves, safety glasses, and closed-toed shoes.
7. Load Your Pieces Into the Kiln
Carefully load your pottery pieces into the preheated kiln with tongs while ensuring they are well-spaced to prevent contact during firing.
8. Fire Your Pottery
Monitor the temperature as you fire your pottery to 1800°F (1000°C). Hold that temperature for about 20-minutes, allowing the glazes to mature and melt.
9. Remove Pottery from Kiln
When the firing process is complete, carefully remove the red-hot pottery from the kiln using long-handled tongs or a Raku rake.
10. Place Pottery in Reduction Chamber
Quickly place the hot pottery into a pre-prepared reduction container filled with combustible materials. Cover it securely to create an oxygen-starved environment which causes the carbon-rich atmosphere to react with the glazes and clay body.
11. Cool, Clean, and Admire Your Raku Pottery
Allow your pottery to cool down in the reduction container for at least 30 minutes. Once it is safe to handle, remove any residual residue using water or steel wool. Finally, stand back and admire your beautifully fired Raku pottery!
In conclusion, firing Raku pottery requires attention to detail and safety precautions while encouraging creativity and experimentation. Follow these 11 steps, and you will be well on your way to creating your very own stunning Raku creations.