The disadvantage of polyurethane paint is that the construction process is complicated, the construction environment is very demanding, and the paint film is prone to disadvantages. Benzene is an indispensable ingredient in various paints, paints and coatings, as well as in polyurethane and polyester paints. Benzene and benzene series and formaldehyde, strontium and gamma rays are called "four killers" of indoor environment, and their harm to human body involves blood diseases, cancerous diseases, respiratory diseases and the like. The unreacted toluene diisocyanate (TDI) contained in the polyurethane paint is also very harmful to human health. It is irritating to the eyes, skin and respiratory tract, causing asthma, and long-term exposure is carcinogenic.
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