Solvent P - 5 - a complex chemistry in construction

What kind of solvent?

In today's paint industry is used a great variety of organic and inorganic substances as solvents.To improve the quality of the resulting product manufacturers usually use a mixture.They are called license.

organic composition F-5 is used to dilute the various paints to obtain a working viscosity, and also for thorough cleaning of the paint tool and equipment.

popularity of this mixture is due to its excellent performance.A large number of components that make up the mixture, determines its broad specialization and, in addition, the possibility of dissolution of various organic substances.

Characteristics and application P-5

This solvent on your mind is completely colorless or slightly yellowish clear liquid without a visible suspended inclusions.This mixture has a rather sharp specific smell.

solvent P-5, composition which includes 30% butyl acetate and acetone , as well as 40% toluene , is one of the most active and aggressive.Therefore, its use is in the works requires great care and accuracy.In some cases, it may be more appropriate to use the weak formulations.

this combined mixture for dilution gain LKP (paints and varnishes), which has in the resin-PSC PM LP and the PSC.In addition, it reacts well with other substances having the base rubber, polyacrylic and epoxy, silicone resins, and other film-forming components.

This combination is added to the paint products small portions with constant stirring to give the desired final product viscosity.Shelf life of the finished composition is not more than 1 year from the date of manufacture.Solvent P-5, GOST 7827-74, produced in appropriate proportions in large mixers in the factories, but for the needs of the laboratory it is easy to prepare yourself.

This solvent mixture is widely used, but it is not universal.In some cases it is more expedient to use the solvent P-5a .It is derived from the previous one, and the only difference is that the mass fraction of one of the components, namely butyl, should not exceed 30%.

Actually P-5a is used to dilute the paint, where it is impossible to use a solvent mixture of R-5.

Precautions

These solvent mixtures are composed of aromatic hydrocarbons, amines, ketones and halogen derivatives, which can cause a variety of skin diseases, as well as serious poisoning.Couples irritate the respiratory tract and the eyes.

With long-term contact solvents may have a negative effect on the bone marrow and blood.When working with these mixtures need to put on special clothing, as well as the use of gloves, mask and goggles.

In addition, a mixture of fire and explosive data.Working with them can not be near an open flame, while smoking, etc.The room where the work place must be well ventilated, ashazardous air pollution is very fast.Among other things, these mixtures are very aggressive to some plastics.