Two painting techniques were employed&colon; encaustic (wax) painting and animal glue tempera. The techniques used were encaustic (wax) painting and tempera. Encaustic and tempera are the two techniques used in antiquity. Many of the Fayum mummy portraits use tempera, sometimes in combination with encaustic. The painting is in encaustic on Masonite. Castor wax can also be added to beeswax for encaustic painting. Flag is an encaustic painting by the American artist Jasper Johns. The Faiyum portraits were painted on wood in a pigmented wax technique called encaustic. The work included the addition of glass mosaic floors and encaustic floor tiles. The houses are adorned with handsome porticoes and encaustic paintings. Faiss held two German patents related to the preparation of waxes for encaustic painting. However, the waxes used in encaustic paints can soften or melt above certain temperatures. For example, encaustic or wax paints are liquid when warm, and harden upon cooling. Walton's next product was inlaid linoleum, which resembled encaustic tiles, in 1882. The floor is covered in medieval encaustic tiles.