What are solvents? By definition, these are volatile compounds of organic and inorganic origin that can liquefy or dissolve other materials. Such substances are also used to impart the necessary consistency and improve the properties of paints and varnishes.
Solvents can be produced on a single-component or composite basis; they can be solid, liquid and even gaseous. Liquid compositions are widely used in construction and for domestic needs. In particular, solvent 646, which we will look at in more detail.
What it is? Compound
Solvent 646 is a chemically active component used in almost any type of finishing work. The composition is designed to work with nitro-based enamels and varnishes, epoxy and glyphthalic primers. After the volatile components evaporate, the coating acquires a glossy tint.
The solvent is usually clear, but may have a yellowish tint. The mixture is multicomponent, with a sharp, characteristic odor.
The composition includes the following substances:
- 7% - acetone.
8% - ethyl cellosolve.
10% - butyl acetate.
10% - ethyl alcohol.
15% - butanol.
50% - toluene.
This chemical is produced in strict accordance with GOST
number
18188-72
. Currently, manufacturers are working to reduce the total concentration of acetone and toluene. This is due to the fact that these substances are often used in the manufacture of narcotic drugs.
Advantages and disadvantages
The positive characteristics of solvent 646 can be expressed as follows:
- Availability. The product is sold in any hardware store and attracts attention at an affordable price.
Practicality. The operating instructions are indicated on the product packaging, so anyone can easily understand the features of the application.
Functionality. Thanks to its multicomponent composition, the solvent can interact with almost any material.
In addition, adding the product speeds up the drying of the coating and promotes the formation of a smooth, glossy surface.
The material also has significant disadvantages. In particular:
- Increased level of toxicity.
Fire hazard.
Strong smell.
Special storage conditions.
Therefore, when working with a chemical solution, safety precautions must be observed.
Scope of application
Solvent 646 has a wide range of applications. In everyday life, the composition is used to remove oil and paint from hands. It is curious that the product cleans well even coloring pigments used in the textile industry. In addition, the composition is often used to clean tools after painting work.
They are also used to bring organic and chemical surfaces to the desired consistency, and are used in the production of paints and varnishes. In general, the products are equally suitable for the oil refining industry, mechanical engineering, finishing work and the needs of car repair shops.
In addition, the mixture based on petroleum products has found its application in the perfumery and cosmetics industry.
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