UV (ultraviolet) finish paint back-spraying water as well as preparation method and application thereof

The invention discloses UV (ultraviolet) finish paint back-spraying water. The UV finish paint back-spraying water is prepared from the following raw materials in percentage by mass: 1-3% of P2O5, 5-7% of hydroxyethyl methylacrylate, 1-3% of p-methoxyphenol, 75-85% of hydroxyethyl acrylate, 3-4% of a silane coupling agent KH-550, 3-4% of Si (OCH2CH3)4 and 2-3% of DMF. By virtue of the UV finish paint back-spraying water disclosed by the invention, defective products are coated again after being polished, thus obtaining products with excellent appearance and performances, defects caused by a coating process are effectively reduced and the yield of products is increased, and the waste of materials is reduced, so that the advantages of the produced products are determined, the cost is lowered, the corporate profit is increased, the competitive power of enterprises is greatly improved, and thus, the enterprises are in an invincible position.