What is double loaded porcelain?

Double-loaded porcelain is manufactured with two layers of porcelain pressed together and fired. The top layer (approx 2-5mm thick) and base porcelain are pressed together under high pressure. The top layer is made up of porcelain clays that have been randomly infused with various dyes, which create a beautiful range of colour combinations and patterns similar to natural stones.
ColorTile has a good selection of double-loaded porcelain tiles which range in colour, size, design and price.