Gliding Techniques

 

Gilding is a technique that consists of applying a certain thickness of gold on another support such as metal, leather, wood or marble in order to sublimate  art objets. Gold is considered one of the purest and most precious metals due to its many properties such as its resistance to oxidation. There are different types of products that allow the application of gold, and therefore there are different methods to achieve gilding. Here we present the four main methods: water-based gilding, application milk, mixtion and Kölner products.

 

Water-based gilding

Water gilding, also known as tempera gilding, is a gilding technique mainly used on wood. Dating back to Antiquity, this traditional technique is the oldest and the one that gives the best results, whether the gold used is real or not. The technique of water-based gilding cannot be practiced without prior training because it involves the application of successive layers of different products. Due to its complexity, this technique implies a longer and more precise work that must be carried out without error in order to obtain an optimal result. It requires the use of free gold leaf and products such as rabbit skin glue, chalk, and various pigments. This technique allows polishing the surface to be gilded with agate stone, giving it a much appreciated glossy finish.

This method requires various steps such as the application of gesso (which forms the basis of the gilding), the application of the plate (which consists of preparing the support in order to optimize the application of the leaf when it is moistened with water), the application of the leaf, the matting (light layer of skin glue) and the finishing (browning and varnishing action thanks to the agate stone, which allows the option of a glossy result). This technique is not recommended for outdoor gilding.

 Application milk

This technique is easier than the water-based gilding technique. It is quite simple, requiring only an application of the milk with a brush and 15 to 30 minutes drying time. It can be used either on loose or transfer gold-leaf. The finish is mat, and it is the cheapest option, though the results are not very hard-wearing. It is supposed to be used on item which are not daily handled.

 

Application milk

 

Mixtion or gold size

Mixtion technique, which consists of a greasy varnish, is the second major method of gilding with foil. When the mix is applied, it allows the gold leaf to adhere to the substrate. The adhesion time of the mixtion varies according to the type of mixtion used, from one to several hours. This technique is faster than water gilding, but still requires several steps: preparation of the surface, application of a mixture, application of gold leaf and varnishing.

This technique is used to gild various supports such as metals, glass or ceramic objects or wood. Mition is mainly used outdoors, although this technique is frequently chosen indoors for woodwork or ceiling decorations. This technique is not as prestigious as water gilding, but its resistance is greater, which allows it to be used outdoors and on supports such as roofs.

As the mix can be used with free or transfers gold leaf, this product dries within 3 or 12 hours, depending on the product chosen. After a few cases of lead poisoning, it acquired a bad reputation. The ingredient concerned has been removed from the composition of the product, which initially led to a reduction in the quality of the product. Currently, its quality is satisfactory, as the product's formula has evolved over time. The main advantage of this technique is that it allows the finest possible adhesive layer under the gold. This reduces the risk of seeing brush or fingerprints. The rendering is therefore sharper and matte.

The choice of 3-hour or 12-hour mixtion depends on the desired work rhythm. The 3-hour mixtion allows a shorter waiting time but offers a shorter time for the laying of the gold, whereas the 12-hour mixtion requires a longer waiting time but offers a longer time for the laying of the gold as well.

 
 

 

Mixtion

 

Kölner products

The newest technique involves a range of acryl-based products developed over the last 25 years. The finish result can be either mat or shiny. In this case, transfer gold must be used, as pressure is needed for the gold to adhere. The product (instacoll) is applied using a brush and left to dry for 30 to 40 minutes, leaving a time frame of approx. 2 hours for application. The main innovation (and advantage) of this method is that once the glue has dried, it can be activated using a special solution for up to a month after application. This allows the work to be carried out over a longer time period or in stages. As this technique involves products of quality, which offers flexiblity, this is the type of product that we provide you with.

 

Kölner products

 

Project with Kölner products

Gilding project with Kölner products

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