Feldspar is a light-colored rock-forming mineral used in the manufacture of glass products, ceramics and other products. Feldspar provides glass hardness, workability, strength, and makes it more resistant to chemicals. It also reduces the melting temperature so less energy is used. For ceramics, Feldspar serves as a flux to form a glassy phase at low temperatures, and as a source of alkalis and alumina in glazes. It improves the strength, toughness, and durability of the ceramic body and cements the crystalline phase of other ingredients. Feldspar is also used in paint, in mild abrasives, urethane, latex foam, and as a welding rod coating.