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Mutual influence of binding materials of paints.
Thinners

the Good-quality surface of an oil or enamel paint can be received if to use the colourful materials prepared on the basis of one binding. The valid choice of materials of often it does not allow and consequently the question is actual: what binding approach each other what of them, mixing up, can not dry up? .

Binding substances shpaklevki practically do not render influence on properties of a paint. Since. In structure shpaklevki the considerable quantity napolnitelja is defining. Therefore, for example, for shpaklevanija floors it is possible to use with equal success both gliftalevye, and pentaftalevye shpaklevki. As an exception, epoksidnye shpaklevki, possessing enough big durability and wear resistance, strongly do not stick together with other enamels and consequently for shpaklevanija a floor are undesirable. .

At various paints interaction binding variously. It is especially important for considering at mixing of paints for reception of a necessary shade. In connection with the big variety of colourful materials it is impossible to give concrete councils about each material. It is important to meet following conditions. .

  1. Binding oil, gliftalevyh and pentaftalevyh paints consist of the same components (natural and synthetic drying oils) and they can be mixed. Thus oksoli, added at the mixing which binding properties are rather weaker, can be at the bottom of slow drying of a paint. Addition of oil varnishes improves quality of paints.

  2. Nitropaints and nitrosolvents form special group in colourful materials. They do not mix up with oil enamels, since. Dissolve a film of oil paints and consequently for a covering of oil structures do not approach.

  3. Before mixing of paints and the varnishes prepared from other binding, it is necessary to prepare preliminary a trial mix and to check up its drying within 24 hours.

At application of ready paints practically always there is a necessity to dilute them to the necessary consistence.

For razbavlenija varnishes and paints use: thinners, i.e. Liquid binding which form a uniform film (drying oils, varnishes, oksoli); solvents, i.e. Liquids which are dissolved in varnishes and enamels and at drying disappear.

Unlike thinners, solvents to some extent weaken a paint film.

Universal solvents and thinners for all structures of paints does not exist. Practically thinners exist only for oil, gliftalevyh and pentaftalevyh paints. Solvents exist for all binding. Now it is made over 90 kinds of solvents which use separately or more often in complex solvents (a mechanical mix of various solvents).

Characteristics of the most common solvents are more low resulted.

Turpentine - one of few solvents of an organic origin, is a product of processing of pitch of coniferous trees. It is rather expensive, fire - and is explosive. It is suitable for application in oil, gliftalevyh, pentaftalevyh and melaminovyh paints for internal furnish. Because of deficiency into structure of complex solvents does not enter. .

Solvent - an oil refining or coal product. It is a toxic, transparent liquid, solvent of high activity. Having dissolved oil and bitumen paints, rubber, hlorvinilovye paints, and in structures of complex solvents - the most part of varnish paints, excepting nitrostructures. On properties with solventom it is similar benzene, toluene, ksilol. Uajt-spirit - fraction of gasoline of direct distillation with small letuchestju. Dissolving properties it has less, than at turpentine. Because of cheapness it is widely applied in complex solvents, for razbavlenija oil paints, cleaning of brushes and banok from under a paint. With the same purpose it is possible to apply usual technical gasolines, but because of big letuchesti their application is limited.

Acetone and the solvents entering into one group with it (ketony), dissolve almost all colourful materials. Acetone application limits its big letuchest. Smaller letuchestju possess technical acetone, metiletilgeksanon, tsiklogeksanon, etc. All of them are applied as a part of the majority of complex solvents where them letuchest it is limited. Now in practice of painting and decorating as solvents epoksidnyh materials are applied only atsetony. Other numerous groups of solvents (acetates, spirits, etany, etc.) and in complex solvents are presented in the limited quantity. .

Complex solvents are more accessible To the population. Designations of solvents do not contain the information on their properties; names of dissolved materials are resulted on solvent container. Often for definition of its dissolving properties it is necessary to use corresponding directories.

In manufacture exists more than 50 structures of complex solvents, all of them are partly universal and approach for razbavlenija widespread paints MA, PF and GF. In all these structures there are group solvents ketonov (atsetony).


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