"Ceresite CT-16" (primer): characteristics, application, feedback

Primer CT-16 from the manufacturer "Ceresite" is quite popular among consumers today. Without it, it would be impossible to decorate surfaces, and there is no need to talk about Venetian plaster. The described primer is used before applying the decorative coating. This material has the status of a leader in its segment. In this area, this primer has become almost the standard.

Reviews about the main properties

Primer ST-16 is a water-dispersion composition that can be used with different types of coatings, among them:

• Gypsum;
• Concrete;
• Gypsum plasterboard;
• Cement;
• Cement-lime;
• Particleboard-plates.

When it comes to concrete, it should also include aerated concrete. In conjunction with it, the coefficient of vapor barrier of the primer must be coordinated with this index, which is inherent in the vapor barrier of aerated concrete. This value for the primer should not be less. Otherwise, the vapor barrier system will be broken, moisture will penetrate through the joints of the concrete and the primer and accumulate on the surface. Subsequently, you may encounter dumping of the base and the appearance of the fungus.

Primer CT-16, according to consumers, is able to increase the quality of adhesion of the base with the finishing material. The composition has moisture repellent characteristics. Consumers like that it is vapor-permeable, than not every primer can boast. There are no solvents in the composition, which indicates ecological compatibility. Buyers especially emphasize that the mixture can be used not only indoors, but also in the open air. The composition is ready for use immediately after purchase. As the domestic master says, it should only be stirred a little.

Specifications

Primer ST-16 is a water-dispersion mixture of acrylic polymers, to which pigments and minerals are added during the mixing process. The consistency of the composition is rather thick, it contains a certain amount of quartz chips, which provides roughness and increases the quality of adhesion. The density of the mixture is 1.58 kg / dm ³ . Use primer can be at a temperature ranging from +5 to +30 ° C, while the lower limit must be strictly observed.

When applied, the air humidity should not be higher than 80%. The drying time can be from 3 to 6 hours, which is true at the optimum ambient temperature. One square meter may require about 0.2 liters of primer, the final value may increase and depends on the absorbency.

Application Features

The primer CT-16, the characteristics of which were mentioned above, should be used taking into account some of the nuances. The application of the mixture can be carried out before gluing the wallpaper or painting the walls. The composition makes it possible to increase the roughness. The material is mixed well before use.

Consistency is not suitable for roller application, use only brushes for this. The same circumstance also indicates that stainless steel elements should be used as fasteners. The primer consumption of "Ceresite ST-16" per 1 m2 was mentioned above. However, this is not the only condition that the producer places on the consumer. Among other things, the composition is not recommended to be diluted with water.

In order to check the primer for quality, follow the outer layer with a trowel. If there is no trace left, the work was carried out according to the technology. Use primer can be on any surface. Despite the fact that the cost of the material is quite high, it remains popular among consumers. It is realized in capacities of 10 and 25 liters, which will be enough for 50 and 125 m2, respectively.

Application area

The primer described above is used to treat various mineral bases. The composition can be used before applying acrylic, mineral and silicone decorative plasters. Excellent paint on the primer, designed for outdoor and indoor work. The material can be used not only for cement, lime-cement, concrete and gypsum plasters, but also for strong paint and varnish acrylic and oil coatings.

Primer CT-16, the application of which is described in the manual, is also used for the installation of external thermal insulation systems. The composition is covered with a reinforced protective layer, after which different types of plasters are applied.

Reviews about the operational features

Primers, according to consumers, can reduce the absorbency of the coating, strengthening them and preventing the excessive drying of thin-layer mineral plasters. Surfaces, according to consumers, with the help of a primer can be protected from the effects of precipitation and moisture.

On the formed layer the decorative plasters fall perfectly, the primer itself increases the operational reliability of plasters and paints, preventing the translucence of the color of the rough surface through a thin layer of plaster coating. The primer has a white color that the customers like, as well as the fact that it can be tinted using the manufacturer's color card.

Surface preparation

Primer CT-16, reviewed in the article and should help you make the right choice, is applied to the prepared surface. The foundation must be made dry and even, and also strong enough. The surface should be cleaned of contaminants in the form of lubricating oils, fats, bituminous mastics, dust and fragile paint and varnish. Crumbling areas need to be shared.

Zones affected by moss, fungus and algae must be cleaned with steel brushes and covered with a fungicidal preparation from the same manufacturer. Defects and cracks should be filled with the material "Ceresite CT 29", doing this three days before applying the primer. For repair, you can use other materials designed for this purpose. "Ceresite CT-16" is applied to the primer "Ceresite CT 17", if it is a question of moisture-sensitive and highly absorbent substrates, among them:

• Particle board;
• Drywall;
• Gypsum plasters.

Conclusion

Quite often, "Ceresite CT-16" is applied on the primer CT-17, which allows to reduce the quality of hydrophobicity. The preparatory layer of the primer is left until it dries for a minimum of 4 hours. Doors and windows, as well as other elements and adjacent surfaces that must not be processed, should be covered with a paint tape.

Before use, the primer is well mixed, it is applied to the surface once with a brush. Primer is not applied by roller, it should not be diluted. It is important to use only stainless steel or steel tools that are not subjected to these processes. It can also be, for example, plastic.