1, clear oil, also known as cooked oil, refined oil or thermal polymer oil, is commonly known as fish oil. Light yellow to brownish yellow transparent slightly viscous liquid. It is made from the mixed oil of drying oil or drying oil and semi-drying oil by heating and boiling, and adding a small amount of drier.

When applied to the surface of an object, it can be dried in air to form a solid film, and the oil film is elastic and soft. It is an early coating product, either used alone, or used to prepare thick paint, or added with pigment to prepare color-forming paint (generally used now). Clear oil has been gradually replaced by varnish, and the dosage is decreasing.

2. Mixed oil refers to the process that the painter sprays colored opaque paint after making necessary treatment on the wood (such as repairing nail holes, sandpaper and putty scraping). Mixed oil is also called "mixed water".

Extended data:

Oil mixing technology is divided into different construction technologies such as painting, wiping and painting, and each technology has its own characteristics.

Generally, the ordinary process is painting, and the painting effect is average, and there will be brush marks on the paint film, which cannot be an advanced process.

High-and middle-level processes are mainly spray painting or paint wiping, and the requirements for veneer are not very high. Generally, large core board substrates are used, and hardwood such as pine, willow and beech can be closed, and density board can also be used for modeling.

Paint wiping is an advanced technology, and the wood and bottom treatment are the same as the intermediate technology, but the paint technology is different. Paint wiping is to wrap gauze with absorbent cotton, dip it in diluted nitro enamel, and slowly rub it on the surface of wood, generally with rubbing times above 10, and finally achieve good results.

Baidu Encyclopedia-Clear Oil

Baidu encyclopedia-mixed oil