How to Varnish an Oil Painting: Tips and Techniques

Painting an oil painting is a rewarding but complex process, and varnishing is one of the final steps that can greatly enhance the overall appearance of the artwork. Varnishing not only helps protect the painting from environmental factors but also brings out the colors and enhances the texture. In this article, we explore various methods and tips for varnishing oil paintings, including the use of different varnishes, application techniques, and safety precautions.

Varnish Options and Application Methods

For those seeking a convenient and quick application method, damar varnish is a popular choice, especially when it comes in an aerosol spray can. Damar varnish is known for its quick-drying properties and ability to bring out the vibrancy of the colors in your oil painting. However, it is crucial to follow safety guidelines when using aerosol varnishes. Attempting to spray the varnish indoors can be dangerous due to the fumes, so ensure that you perform this task in a well-ventilated area or outside if possible. Some artists choose to spray the varnish themselves to ensure precision, while others may take their painting to a local frame shop for professional application at a small fee.

Experience with Winsor Newton Spray Varnish

Another option for varnishing your oil painting is the Winsor Newton spray gloss varnish. This varnish is highly praised for its quick-drying properties and ability to maintain the shining quality of the oil paint. As with damar varnish, it is essential to make sure the painting is completely dry before applying the varnish. It is advisable to use this varnish in a well-ventilated area to avoid inhaling the fumes, which can smell for roughly 48 hours.

Local Australian Brand Varnish

For artists based in the Australian region, a mid-priced pre-prepared varnish from a local art supply store can be an effective and cost-efficient solution. This varnish is often turpentine-based, which makes it fast-drying but may be a bit more unpleasant to work with due to its strong smell. Despite these drawbacks, the results are often satisfactory, and the varnish is relatively hassle-free to apply and clean up.

DIY Varnish Creation

Some artists prefer to take a more hands-on approach and create their own varnish using turpentine and damar crystals. While this method requires a bit more time and effort, it allows for customization and experimentation. The process involves dissolving the damar crystals in turpentine, which can take some time. This approach might be suitable for those who want a deeper understanding of the materials and processes involved in varnishing.

Making Sure Your Painting is Properly Prepared

Regardless of the varnish you choose, it is crucial to ensure that the painting is fully dried before applying the varnish. A common recommendation is to wait at least 3 to 4 months to allow the paint to dry completely. Additionally, always use a clean brush to apply the varnish, and ensure that the painting is laid flat to avoid any unwanted drips or uneven application.

Conclusion

Varnishing your oil painting is an important step in the finishing process that can greatly enhance the appearance and longevity of your artwork. Whether you opt for a commercial varnish or take the DIY route, the key is to ensure proper preparation and application. By following these tips and techniques, you can achieve a beautiful final result that will delight viewers and protect your artwork for years to come.