Achieving a high-gloss, glass-like finish on porcelain sculptures requires a combination of meticulous techniques and high-quality materials. Here are the most common methods used by artists and craftsmen:

1. Glazing with High-Gloss Ceramic Glazes

Applying a high-gloss ceramic glaze is the most straightforward way to create a shiny, reflective surface. These glazes contain silica and fluxes that melt during firing, forming a smooth, glassy layer. Multiple layers or a single thick application can enhance the gloss effect.

2. Polishing with Diamond Abrasives

For unglazed porcelain, polishing with diamond abrasives or fine-grit sandpaper (up to 3000 grit) can create a mirror-like finish. This method is time-consuming but ideal for achieving a natural, high-gloss look without additional coatings.

3. Buffing with Ceramic Wax or Sealants

After polishing, applying a ceramic wax or sealant can amplify the shine and protect the surface. Products like carnauba wax or specialized ceramic sealants provide durability and enhance reflectivity.

4. Multiple Firing Cycles

Some artists use multiple low-temperature firings to build up layers of gloss. Each firing slightly melts the surface, creating a cumulative glass-like effect.

5. Using Resin or Epoxy Coatings

For non-traditional finishes, a clear resin or epoxy coating can be applied post-firing. This creates an ultra-glossy, durable surface but may alter the porcelain’s natural feel.

By combining these techniques, artists can achieve a stunning, high-gloss finish that elevates the visual appeal of porcelain sculptures. Experimentation with materials and methods is key to perfecting the desired effect.