When did tung oil start to be used?

During the Warring States Period (475 B.C. and 221 B.C.), China took the lead in mastering the technology of making paints from tung oil. It can use tung oil and lacquer to compound coatings, and also pioneered the technology of adding additives. At present, in a few remote areas of our country, you can still see wooden barrels and boats painted with tung oil, and furniture painted with raw lacquer.

The Industrial Revolution in Europe in the 17th century led to a new period in the development of coatings. The progress of science, especially the establishment of organic chemistry, has provided a theoretical basis for the research and development of coatings.

After the establishment of the first paint factory in Britain in 1790, paint began to bid farewell to small imitations, from handicrafts to industrial products. In the 20th century, with the development of the petroleum industry, the development of polymer compounds was successful and put into use, and the coating entered the era of synthetic resin.

Tung oil is the oil extracted from the seeds of tung oil, a special oil tree species in China. It is a genus of Euphorbiaceae, native to China, with a long history of cultivation, which was recorded in the Tang Dynasty more than 1,000 years ago. In the Yuan Dynasty, the Italian Marco Polo introduced, and tung oil gradually spread overseas.

Tung oil is an excellent vegetable oil with dryness. It has the characteristics of fast drying, light specific gravity, good gloss, strong adhesion, heat resistance, acid resistance, alkali resistance, anti-corrosion, anti-rust, non-conductive, etc., and has a wide range of uses. It is the main raw material for the manufacture of paints and inks, and is widely used as waterproof, anti-corrosion and anti-rust coatings for construction, machinery, weapons, vehicles and ships, fishing gear and electrical appliances, and can be used to make oilcloth, oiled paper, soap, pesticides and medical vomiting agents, insecticides, etc.

The use value of tung oil:

Tung oil is an industrial vegetable oil made by mechanical pressing and refining of the harvested tung tree fruits, and the whole process is a physical method. The paulownia tree is a perennial woody forest tree that grows in mountainous areas far from cities. It is extremely resistant to diseases and insects, and does not need to apply fertilizers and pesticides during the whole growth process.

Tung oil is a natural vegetable oil, which has the characteristics of rapid drying, high temperature resistance, and corrosion resistance.

With the rapid development of China's economy, the demand for energy is increasing, the contradiction between energy supply and demand is becoming increasingly apparent, with tung oil as the main biomass energy as an alternative energy will be the inevitable choice of our country, coupled with the development of China's industry, agriculture and fishery, the improvement of people's living standards, the domestic demand for tung oil will increase greatly.

The above content reference:

What is the role of tung oil, and why was it a strategic material before? Today is a long time to see.

The oil extracted from the fruit of tung oil. Poisonous. It is a very good quality dry oil, which can be used to make paints and inks, and can be used for waterproof and anti-corrosion.

Hello dear! Glad for your question! Uses and methods of use of cooked tung oil:

1. You can paint it directly, and the amount of kilograms can be painted about 10 square meters 3 times. Fuel consumption varies depending on the substrate and coating effect. Before wiping, you need to soak the dust-free cloth evenly, squeeze out too much cooked tung oil, wring it out as much as possible, and wipe it evenly when wiping, not too heavy or too light.

Rub a thin layer of cotton cloth on the surface of the wood, and do not overdo it. Rub it lightly several times for better results. 3. Wood brushing tung oil can play a role in protecting the wood, and the tung oil will form a protective film on the surface of the wood after drying, which can make the wood maintain good stability and avoid problems such as wood drying and deformation to a certain extent.

However, compared with other wood paints, tung oil is more expensive, the smell is long-lasting, and the construction is troublesome, usually every 2-3 years need to be repainted.

Dear, I'm glad to answer for you: how long does tung oil dry Answer: Tung oil generally has to dry in 3 to 7 days in summer, and the temperature below five degrees in winter will be extended. Tung oil is divided into two kinds: raw tung oil and cooked tung oil, and raw tung oil is used in medicine cave reform and chemical industry; Cooked tung oil is processed from raw tung oil, which can replace varnish and paint and other coatings, and is directly used for machine maintenance, indoor wooden floors, wooden ceilings, sauna boards, wooden balcony handrails, etc.; Outdoor wooden flooring, trellises, wooden houses, gazebos, fences, wooden bridges, boats, chairs, wooden farm tools, etc.

Dear, I'm glad to answer for you: Tung oil in the skin leakage ** buy Answer: Kiss Hello, tung oil can be bought in the grocery store.

In the past, it could be bought in the sales department of the means of production, but now the grocery stores mainly sell agricultural production tools, and they are available in all kinds of counties and cities. Tung oil is a vegetable refining oil, with fast drying, light specific gravity, good gloss, strong adhesion, heat resistance, acid resistance, alkali resistance, anti-corrosion, anti-rust, non-conductive characteristics, coarse and good use is widely used in the manufacture of paints, inks of the main raw materials, can also be used as construction, machinery, weapons, vehicles, boats, fishery rock lead tools, electrical appliances waterproof, anti-corrosion, anti-rust coatings, and can be made of oil cloth, oil paper, soap, pesticides and medical vomit, insecticides, etc. Tung oil has good waterproofness and is a good surface protection coating for anti-corrosion and waterproof of wooden furniture.

Tung oil should be properly stored and not eaten by mistake, as it will cause severe diarrhea.