The term "non-viscosity" refers to anti-stick properties. As we are familiar with Teflon (by Du Pont) coating, which is used for the inner surface of a frying pan or the bottom of an iron, its performance is well known. Teflon coating prevents cooking ingredients or fabrics from getting attached to a frying pan or the bottom of an iron so that we can work with them more efficiently.

A typical non-viscous paint is the fluorine resin paint made with tetrafluoroethylene (PTFE). This can also prevent posters from sticking to surfaces.
Fluorine resin paints with non-viscous properties include tetrafluoroethylene (PTFE) resin paint, tetrafluoroethylene-hexafluoropropylene copolymer (FEP) resin paint, tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer (PFA) resin paint, modified resin paint, tetrafluoroethylene-ethylene copolymer (ETFE) resin paint, and others.
Among these, PTFE and FEP paints are dispersion paints where resins are dispersed in solvents, while PFA and ETFE paints are provided in powder form. With any paints, coating is made by heating fluorine resin to above melting point until they fuse and form a film. In addition, modified fluorine resin paint, organosol paint, and solvent-based paints are also available.

As described above, most non-viscous paints are made up of fluorine resin. In addition to non-viscous properties, fluorine resin paints excel in sliding performance, chemical resistance and electrical insulation. They are used in a wide range of applications owing to these characteristics. Examples of their application are shown in [Table 1].

[Table 1] Application of non-viscous paints

Dispersion paints are made by dispersing fine particles of fluorine resin ranging from 0.1 to 0.4 µm into emulsifier-containing water or organic solvents and compounding them with pigments or fillers on an as-needed basis. Powder paints are made by painting pure fluorine resin powders ranging from 5 to 50 µm and are capable of providing the full advantages of fluorine resin.

Modified fluorine resin paints are made by dispersing fluorine resin powders into another type of resin paint which act as a binder. They leave particulate fluorine resin even after the coating have been formed. Resins such as epoxy, phenol, urethane, acrylic, and silicone are used as a binder. This type of paint has lower non-viscosity properties; however, the adhesiveness with materials is improved, allowing baking at a relatively lower temperature.

Organosol paints are made by dispersing vinylidene fluorine resin powders into soluble modified resin paints. During the heating and baking process, fluorine resin powders are dissolved into solvents in the coating film. Because of the baking temperature being relatively low, they are used with curtain walls and pre-coated metals.

Solvent-based paints are made by producing degenerative changes in fluorine resin to be soluble in organic solvents. They can be handled in the same manner as regular paints.