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What is the Difference Between Polyester Paint and Nitro Paint?

17, Jul. 2020

As a Nitrocellulose Solution Exporter, share with you.

Polyester paint, a thick paint made of polyester resin as the main film-forming material. The paint film is plump and the thick layer is hard. Polyester paint also has a variety of varnishes, called polyester varnish. Nitro paint, common wood and decoration paint. The main film-forming material is mainly composed of nitrocellulose, combined with alkyd resin, modified rosin resin, acrylic resin, amino resin and other soft and hard resins. Plasticizers such as dibutyl phthalate, dioctyl ester, and oxidized castor oil are also required. The solvents mainly include true solvents such as esters, ketones and alcohol ethers, auxiliary solvents such as alcohols, and diluents such as benzenes. Nitro paint is mainly used in the coating of wood and furniture, home decoration, general decorative coating, metal coating, general cement coating, etc. Nitro paint can be divided into four types: external varnish, internal varnish, wood varnish and various colors of magnetic lacquer.



Polyester paint, a kind of paint made of polyester resin as the main film-forming material.

Nitro paint is two-component, main paint and thinner. Polyester paint has three components, main paint, thinner and curing agent. The construction of nitro paint is more complicated than polyester paint, but because there is no curing agent, the decoration is more environmentally friendly. Because of the use of curing agent, polyester paint makes the hardness of the paint film higher, high temperature resistant, and the paint film is more beautiful.

The construction process of polyester paint

Polyester paint construction should pay attention to preparation work, check the air path of the air compressor to ensure that no moisture is mixed into the paint in the air. The furniture to be constructed must be cleaned, paying special attention to the dead ends. The spray booth needs to be wetted with water to reduce flying dust. Prepare tools such as filter cloth, paint mixing utensils, cleaning thinner, paint thinner, curing agent, etc. Avoid construction in rainy days. The curing agent will react with moisture, which will cause many painting defects. Avoid construction in rainy or high humidity weather. Wood floor coating, white floor polishing brush 1-2 times primer, sanding brush floor paint 3 times.

Isocyanate monomers and their adducts in polyester paints have a strong stimulating effect on the human body. If the content of free monomers exceeds the prescribed standard, it will cause serious irritation to human eyes, skin and respiratory system during construction. If you are exposed to polyurethane paint and polyester paint for a long time, the body may also be infected with bronchitis, asthma or emphysema. Most of the solvents and thinners in polyurethane paints and polyester paints are highly toxic benzene substances, and air circulation must be ensured.

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