How to Seal Air Dry Clay

Written By :

Toby Rede

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Clay

Written By

Toby Rede

Expert Author

Pinterest

Toby Rede is a professional potter who blends functional and artistic ceramics, drawing inspiration from sustainable gardening and natural textures.

Have you ever spent hours intricately crafting a fun sculpture out of air-dried clay, only to find it cracking and breaking apart shortly after it dried? I know the frustration of seeing your hard work falling to pieces. Air-dry clay can be a delightfully easy and inexpensive crafting material to work with. However, without proper sealing, your creations are unlikely to survive for very long on a shelf or desk.

How to Seal Air Dry Clay

In this post, I’ll walk through several simple and effective methods on how to seal air dry clay. Whether you’re an experienced potter or a complete beginner just having fun with sculpting, following these tips will have your creations lasting for more than a few days. Let’s get started protecting that pinch pot from perishability!

9 Best Ways on How to Seal Air Dry Clay

1. Mod Podge Method:

One of the most popular methods for sealing air-dry clay is by using Mod Podge. This versatile crafting glue and sealer not only give your creations a glossy finish but also helps to protect them from moisture and damage. To use this method, simply brush a thin layer of Mod Podge over your fully dried clay creation and let it dry completely before handling.

2. Clear Acrylic Spray:

Another convenient method for sealing air-dry clay is by using a clear acrylic spray. This can be found in most craft stores and provides a strong, protective coat over your creations. Be sure to use this method in a well-ventilated area as the fumes can be quite strong. This method also requires multiple coats for maximum protection.

Using a Clear Acrylic Spray

3. Water-based Varnish:

Water-based varnish, such as polyurethane or polyacrylic, is another effective sealant for air-dry clay. This method is popular because it can be easily brushed on and dries clear, giving your creations a natural finish. Be sure to use a water-based varnish, as oil-based ones can react negatively with the clay. This method also requires multiple coats for maximum protection.

4. PVA Glue:

PVA glue is a popular sealant for air-dry clay because it’s inexpensive and readily available in most households. Simply mix equal parts of PVA glue and water, then brush it onto your creation once dried. This method can leave a slightly shiny finish, but it provides good protection against moisture and breakage. If you’re working with colored clay, be aware that the PVA glue mixture may cause slight color changes.

5. Nail Polish:

Yes, you read that right! Clear nail polish can also be used as a sealant for air-dry clay. This method is perfect for small projects or detailed areas that need extra protection from damage. Simply brush on the clear nail polish in thin layers and let it dry completely before handling. Keep in mind that this method may leave a slightly shiny finish.

Clear Nail Polish Can Also Be Used

6. Epoxy Resin:

For the ultimate protection against moisture, consider using epoxy resin to seal your air-dry clay creations. This method requires mixing two chemicals, so be sure to follow the instructions carefully. Once mixed, apply the resin to your creation and let it dry completely for a strong, durable finish. Epoxy resin also provides a glossy finish, making your creations look even more professional.

7. Wax Seal:

If you want to add a unique touch to your air-dry clay creation while also protecting it, consider using a wax seal as a sealant. Simply melt the wax into a sealing spoon and pour it onto the surface of your dried clay creation. You can even add a personal stamp to make it extra special. Keep in mind that this method may not provide as much protection against moisture or damage.

8. Oil-based Varnish:

While water-based varnishes are generally recommended for air-dry clay, oil-based varnishes can also be used with caution. Be sure to test the varnish on a small area of your creation first to ensure it doesn’t react negatively with the clay. This method can provide a glossy finish and strong protection against moisture and breakage. Using multiple coats is recommended for maximum protection.

9. Silicone Sealant:

Last but not least, another unconventional sealant for air-dry clay is silicone sealant. This method requires a bit more skill and precision, as you’ll need to carefully apply the sealant to your creation with a small brush. However, silicone sealant provides excellent protection against moisture and can even fill in small cracks or holes in your clay creations.

Following any of these methods on how to seal air-dry clay will ensure that your creations last for a long time to come. Be sure to experiment with different techniques and find the one that works best for you and your unique creations. Happy crafting!  

Additional Tips and Tricks for Sealing Air Dry Clay

1. If you’re using water-based sealants, be sure to let your air-dry clay fully dry before applying. This will prevent any unwanted reactions between the moisture in the clay and the sealant.

2. When working with colored clay, keep in mind that different sealants may slightly alter or darken the color of your creation. Be sure to test on a small area first if this is a concern.

Working With Colored Clay

3. Always work in a well-ventilated area when using sealants, as the fumes can be harmful if inhaled.

4. For larger or more delicate creations, consider using multiple layers of sealant for maximum protection.

5. Don’t be afraid to mix and match sealant methods for different areas of your creation, such as using Mod Podge for a glossy finish on the body and wax seal on delicate details.

6. Before sealing, make sure to smooth out any rough edges or bumps on your air-dry clay creation with sandpaper or a soft cloth. This will give you a smoother surface for the sealant to adhere to.

7. Consider adding a layer of primer before sealing if you want to paint or add other finishes to your air-dry clay creation.

8. If you’re working with children, be sure to supervise them when using sealants and choose non-toxic options.

9. After sealing, allow your air-dry clay creation to fully cure for at least 24 hours before handling or decorating further. This will ensure that the sealant has fully dried and hardened for maximum protection.

10. Remember to store your sealed air-dry clay creations in a cool, dry place to prevent any cracking or damage over time. 

Following these additional tips and tricks will help you achieve the best results when sealing your air-dry clay creations. Remember to have fun and get creative with your sealant choices, as they can add a unique touch to your finished projects!  Keep exploring different methods and techniques to find what works best for you. Happy crafting!

Frequently Asked Questions

How is Air Dry Clay Different From Other Types of Clay?

Air-dry clay is made from natural materials such as water, mineral powders, and vegetable fibers. It does not contain any harmful chemicals or toxins, making it safe for children to use. Other types of clay, such as polymer clay or earthenware clay, often require high temperatures for curing and may emit fumes that can be harmful if not used properly.

Can I Make Pottery With Air Dry Clay?

While air-dry clay is great for sculpting and small projects, it is not recommended for making pottery. The clay does not have the strength and durability needed to hold its shape and withstand daily use. It is best used for decorative pieces or small figurines.

How Do I Seal Air Dry Clay?

To seal air-dry clay, you can use a variety of products such as varnish, Mod Podge, or even clear nail polish. Simply brush on a thin layer of the sealer and let it dry completely before handling your clay piece. This will help protect the surface of your clay and prevent it from absorbing moisture, which can cause cracking or warping.

Can I Paint Air Dry Clay?

Yes, air-dry clay can be painted with acrylic paints, watercolors, or even markers. It is important to seal the clay first before painting to create a smoother surface for the paint to adhere to. You can also add texture and color to your clay by mixing in different materials such as sand, glitter, or food coloring. The possibilities are endless!

How Do I Store Air Dry Clay?

To keep your air-dry clay fresh and pliable, store it in an airtight container or wrap it tightly with plastic wrap. This will prevent the clay from drying out and becoming brittle. If your clay does become dry, you can add a few drops of water and knead it to restore its moisture. If stored properly, air-dry clay can last for several months.  So go ahead and let your creativity flow without worrying about wasting any of your precious clay!

Are There Any Special Precautions I Should Take While Using Air Dry Clay?

As with any crafting material, it is important to take some precautions while using air-dry clay. Make sure to wash your hands before and after handling the clay to prevent any potential irritation. It is also recommended to work on a covered surface or use a non-stick mat to avoid any mess. And if you have any allergies, always check the ingredients of the clay before using it.

Using Air Dry Clay

Conclusion

In conclusion, learning how to seal air dry clay can be a fun and rewarding experience. From choosing the right sealant to applying it correctly, there are many important factors to consider to achieve the best results.

However, with the tips and techniques outlined in this blog post, you now have all the tools you need to confidently create and preserve your clay masterpieces. Remember to always take your time, experiment with different methods, and don’t be afraid to get creative! Whether you’re a beginner or an experienced artist, sealing your air clay creations is an essential step that will ensure their longevity and beauty for years to come.

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