What is the difference between polyurethane paint and blended paint?

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During the sales process, some customers asked what the difference is between polyurethane paint and blended paint Let’s explain the difference between polyurethane paint and blended paint: Polyurethane paint and blended paint belong to two completely different categories of paints. Blended paint generally refers to alkyd blended paint; alkyd and polyurethane are two distinct types of paints, belonging respectively to the polyurethane series and the alkyd series. Therefore, there is a significant difference between these two different categories of paints. The difference lies in the following: 1. The film-forming component of polyurethane paint consists of an isocyanate prepolymer and a hydroxyl resin; this type of paint produces a thick, decorative film with high hardness. It is a two-component paint that requires the use of a curing agent during application. One drawback of polyurethane is its tendency to yellow over time, which makes it unsuitable for outdoor use. It is generally used indoors, as well as on machinery, equipment, and steel frameworks. Nowadays, there are also \"yellowing-resistant\" polyurethane paints available, but complete prevention of yellowing has not yet been achieved. 2. Blending paint, as the name suggests, is a type of paint designed for blending purposes. It has a soft and uniform texture; it belongs to the category of colored paints, comes in a variety of colors, and its paint film is fine, dense, and hard. It also has strong adhesion. Different amounts of matting agents can be added to this paint to produce semi-gloss or matte finishes according to customer requirements. It is commonly used on indoor and outdoor wood surfaces, metal surfaces, furniture, and wooden items. Alkyd blend paint is a single-component product; compared to two-component polyurethanes, it is simpler to apply and comes with fewer restrictions.