Applying gold leaf is a delicate and rewarding process that requires using the right type of adhesive to ensure a smooth and lasting finish. The most commonly used adhesive for gold leaf application is gilding size, a specially formulated glue that provides the necessary tackiness for the gold leaf to adhere properly.
What Type of Glue Is Best for Gold Leaf Application?
The best adhesive for applying gold leaf is gilding size. This adhesive comes in two main types: oil-based and water-based. Each type has its own advantages and is suited to different surfaces and conditions. Choosing the right type of gilding size is crucial for achieving the desired finish and durability.
Oil-Based vs. Water-Based Gilding Size
| Feature | Oil-Based Gilding Size | Water-Based Gilding Size |
|---|---|---|
| Drying Time | 12-24 hours | 15-30 minutes |
| Durability | High | Moderate |
| Surface Suitability | Non-porous surfaces | Porous and non-porous |
| Ease of Use | Requires ventilation | Easy to clean up |
- Oil-Based Gilding Size: Ideal for outdoor projects or surfaces exposed to moisture. It takes longer to dry, allowing more working time, and provides a durable finish.
- Water-Based Gilding Size: Dries quickly and is easier to clean up, making it suitable for indoor projects and beginners.
How to Apply Gold Leaf Using Gilding Size
- Prepare the Surface: Ensure the surface is clean, dry, and free of dust. Sand the surface if necessary to create a smooth base.
- Apply the Gilding Size: Use a brush to apply a thin, even layer of gilding size. For oil-based size, wait until it becomes tacky (usually 12-24 hours). For water-based size, wait 15-30 minutes.
- Apply the Gold Leaf: Carefully lay the gold leaf over the tacky surface. Use a soft brush to gently press and smooth the leaf onto the adhesive.
- Burnish the Leaf: Once the gold leaf is applied, gently burnish it with a soft cloth or brush to ensure it adheres well and to remove any excess leaf.
- Seal the Surface: Apply a clear sealant to protect the gold leaf from tarnishing and wear.
Common Mistakes to Avoid
- Applying Too Much Adhesive: Excess adhesive can cause the gold leaf to wrinkle or not adhere properly.
- Rushing the Process: Allow the gilding size to reach the right level of tackiness before applying the gold leaf.
- Skipping Surface Preparation: A poorly prepared surface can lead to an uneven finish.
How Do You Choose Between Oil-Based and Water-Based Gilding Size?
Choosing between oil-based and water-based gilding size depends on the project requirements and the working environment. Use oil-based size for projects needing high durability and water resistance, such as outdoor sculptures. Opt for water-based size for quicker projects and ease of use, especially for indoor applications.
Can You Use Regular Glue for Gold Leaf?
Regular glue is not recommended for gold leaf application as it does not provide the necessary tackiness or drying properties required for a smooth, lasting finish. Gilding size is specially formulated to meet these needs.
Is Gold Leafing Suitable for All Surfaces?
Gold leafing can be applied to a variety of surfaces, including wood, metal, glass, and canvas. However, the surface must be properly prepared and primed to ensure the gold leaf adheres effectively.
What Tools Are Needed for Gold Leaf Application?
For a successful gold leaf application, you will need:
- A soft brush for applying gilding size
- A gilding brush for handling gold leaf
- A burnishing tool or soft cloth for smoothing
- A sealant for protection
How Do You Maintain Gold Leafed Surfaces?
To maintain gold leafed surfaces, avoid excessive handling and exposure to moisture. Clean gently with a soft, dry cloth and reapply sealant as needed to protect the finish.
Conclusion
Applying gold leaf is an art that requires patience and the right materials. Using the correct type of gilding size—whether oil-based or water-based—ensures a beautiful and lasting finish. By preparing your surface properly and following the application steps carefully, you can achieve stunning results in your gold leaf projects. For further reading, explore topics on surface preparation and advanced gilding techniques to enhance your skills.