The setting of a plastic material.

1. Plugging a cavity or drill hole with cement. Also known as dental work.

2. Consolidation of loose sediments or sand by injection of a chemical agent or binder.

The precipitation of a binding material around minerals or grains in rocks.

1. High-temperature impregnation of a metal surface with another material.

2. Conversion of wrought iron into steel by packing layers of bars in charcoal sealed with clay and heating to 1000°C for 7-10 days.