Good Enamel Is Built in Layers
One of the common mistakes in understanding enamel work is to think only about the final color. An experienced worker thinks about layers. The finish is developed through repeated application and controlled firing rather than by placing all of the material at once. Each stage affects the one that follows. That is particularly important when the design calls for a gradient.
A deep ocean blue, for example, should not suddenly stop and become black. The transition has to feel natural. The darker area needs enough depth to hold its character, while the neighboring blue still needs to remain visible. The result depends on controlling the relationship between successive layers and firing stages.
When this is done properly, the eye does not immediately notice where one tone ends and another begins. It simply sees depth. That is usually the sign that the craftsman has done his job properly.
The Surface Should Have Movement
A completely flat industrial color is easy to recognize. Enamel behaves differently.
One of its most attractive qualities on eyewear is the way the surface changes under light. Depending on the angle, an area may appear darker, brighter, deeper or more transparent. For certain designs, we deliberately use this characteristic to suggest the movement of water.
The effect does not come from printing a water pattern onto the frame. It comes from the enamel itself: its surface, its depth, its tonal variation and the way light travels across it.
When somebody turns the frame in the hand, the appearance should continue to change. A photograph can show the color, but it cannot completely reproduce that movement. This is why enamel often looks better in the hand than it does on a flat computer screen.
Clean Borders Are Harder Than Large Areas
People often look first at the center of an enamel section. A craftsman usually looks at the edges.
The border between enamel and metal tells you a great deal about the quality of the work. It should look intentional. The color should stay within the designed field, and the surrounding metal detail should remain readable.
This becomes much more difficult on an ornate eyewear temple because the enamel may sit beside engraving, relief work, stones or other decorative features. There is very little room for careless work.