Other products that are made from fixed oils include candles, linoleum, lubricants, paint, and soap. Butter makers churn cream to produce butter. Lard is made from fatty tissues of hogs, and tallow from cattle, goats, or sheep. Oils from such sea animals as fish and whales are called marine oils. Most fixed vegetable oils are extracted from such seeds as corn, cottonseed, and soybeans.
Processors obtain olive and palm oils from the fruit pulp surrounding the seed.
For information on the processing of fixed vegetable oils, see . Exposure to air causes fixed oils to thicken. Drying oils absorb oxygen from the air to form a tough film. They are widely used to make paints and varnishes. Important drying oils include linseed, perilla, tung or chinawood, soybean, oiticica, hemp, walnut, poppy seed, and sunflower.