During repair and construction work, it is impossible to do without a sealant. Our article is devoted to a sanitary silicone product, its types, scope and subtleties of choice.
Features of the
The sanitary sealant is based on a silicone polymer.
Its main components are:
- silicone rubber;
- a vulcanizing agent that makes it similar to a rubber mass;
- various plasticizers that give elasticity;
- fungicidal additives that have an antifungal effect;
- catalysts and strength enhancers.
A sealant is necessary to ensure the watertightness of the surface, which is ensured by filling its joints, cracks and seams. Silicone sanitary version differs from acrylic, bitumen and polyurethane in that the biocidal components added to it protect the surface from mold and mildew. Sanitary sealant is environmentally friendly, aesthetic and versatile, so its use is widespread.
The main properties of a universal sanitary product are water, thermal and frost resistance, resistance to ultraviolet radiation, pathogens, aggressive cleaning agents, elasticity and durability. Sanitary sealant contains organosilicon compounds that increase the sealing of joints. Silicone contributes to strength and at the same time good elasticity. Sanitary silicone sealant has excellent surface adhesion.
Such a sealant is able to withstand any fluctuations in heat and cold, an unexpected drop in air temperature. It does not absorb moisture and is recommended for use in places with high humidity: baths, laundries, swimming pools, bathrooms and showers.
Organic salts and deposits do not form on the surface of the product. Its service life is 15 to 20 years.
There are two types of silicone sealants. One-component are the most common, packaged in tubes, ready-to-use formulations (hardening occurs when the agent is exposed to air or water). Two-component ones require thorough mixing of the two elements (curing occurs under the influence of the components on each other).
Sanitary silicone sealants are one-component materials.
Considering the chemical composition, one-component sealants can be acidic and neutral. The first option differs from the second in that it smells like vinegar. It is acid-based. It is actively used for grouting joints and cracks in rooms with high humidity, where swimming pools, showers and bathrooms are equipped.
To identify acidic sanitary sealant, packaging is usually labeled "A". When working with him, you need to protect the respiratory tract and wear gloves on your hands. Such a sealant can only be combined with materials that are not prone to acid attack. In combination with some organic elastomers, the composition can change color.
An acidic sealant is undesirable for structural glazing and aquarium refurbishment, but is excellent for plastic applications.
Neutral sanitary silicone sealant has a low odor. This versatile, expensive product is suitable for bonding a wide variety of materials. The substance is used in work with any stone that lends itself to effective adhesion, even marble and granite. The range of application of a neutral sealant is more extensive than that of its acidic counterpart.
The versatile substance is easy to apply and becomes waterproof. Finally, the composition hardens within a day, and sometimes the curing process is delayed for several days.
Scope of application
Because it is durable, waterproof, flexible and easy to use, sanitary silicone sealant is extremely popular with consumers. It is used as a restorer to eliminate small cracks, seal joints, create elastic layers. Repair, construction, as well as work in rooms with increased sanitary and hygienic requirements cannot do without convenient adhesive mastic.
Sealing joints between pipes, sealing the heating system, any refrigeration equipment, kitchen installations are also performed using this convenient substance. The sanitary sealant is also widely used as an insulating material for filling gaps and voids in a bathroom, a drain hole in a bathtub, when installing plumbing fixtures and sealing a toilet bowl.
It is also useful for attaching cladding material, tiles, when installing underfloor heating. It is better to insulate door frames with this tool too. It is also the most reliable for sealing window blocks. Adhesion to plaster allows you to effectively use the composition in working with any elements of the room decor.
The sealant is used both indoors and outdoors. With its help, larger-scale works are also carried out: the joints of the panels are closed, the facades are sealed, the roofs are sealed. The sanitary sealant is successfully used to fill the gaps of glass and mirror surfaces. Aquariums, florariums, terrariums, stained-glass windows, glass shelves, showcases cannot do without sealing with a sanitary compound with silicone. They also attach all kinds of decorative links, unusual elements to vases and stained-glass windows.
Sanitary sealant is used in rooms that have special requirements, such as cleanliness and sterility: in hospital wards, laboratories, children's institutions, catering points.
Sealants containing silicone are not advised to paint after they have hardened, because the paint will peel off. For this reason, colored products are produced: brown, gray, black. Neutral colors are in great demand: white, colorless (transparent).
For the treatment of cracks in bathrooms, grouting gaps in the bathroom and in the kitchen, the white color of the sanitary composition is used. When building pools, white is also preferred. The use of a transparent medium is reasonable, since it is almost impossible to discern the substance. They are used to seal the gaps of flooded floors, wooden structures and glass edges. Gluing tiles to concrete is also done with a transparent sealant.
The transparent color is useful when grouting joints in terrariums, aquariums, as well as any smooth surfaces. It is recognized as completely harmless to the inhabitants of the aquarium. In addition, fresh and salt water has no effect on the silicone sealant.
The German corporation Henkel occupies a leading position in the rating of manufacturers of sanitary sealants. Her trademarks "Ceresit" and "Moment Herment" receive very good consumer reviews.
The rest of the well-known brands are distributed almost equally in terms of popularity
Henkel Bautechnik's Ceresit brand, which is part of Henkel Corporation, is highly valued by consumers. Ceresit cs 15 sealant adheres perfectly to porcelain, ceramic, glass, enamel edges. Any surface, porous and smooth, is subject to it. It has high elasticity, water resistance, heat resistance, does not fade, the sun's rays do not affect it
According to consumers, this is a very high quality sealant, but it has a pungent odor that slowly disappears.
"Moment Herment" perfectly adheres not only to plastic (polyester, polyvinyl chloride, polyacrylate, epoxy resins), but also to glass, ceramic, metal, wood surfaces. Has good weather resistance. "Moment Herment" is indispensable for sealing during the installation of mirrors. Serves for sealing any seams, is widely used in shipbuilding
Its use will prevent aquarium leaks. Buyers are attracted by a wide variety of species with optimal composition and ease of use.
Polish company "Selena" produces quality sealant with fungicide under the Tytan Professional brand. Consumers note that unlike all other acid-based sanitary silicone sealants, Tytan Professional does not have a pronounced vinegar odor
Universal silicone transparent sealant Russian Zubr trade mark produced in Stavropol. Differs in excellent adhesion to a large number of materials, durability, high elasticity
The external environment and UV radiation do not change its quality. Sealing work is carried out both inside and outside the premises.
Kiilto sealant produced in Finland. It is characterized by good heat resistance, high dry matter content. Combines with natural stones, including marble. It can be used with any plumbing equipment, but not used in aquariums
Paint is not recommended, so many different colors are available.
Krass brand (company "Lakra"). The main advantage of Krass sanitary silicone sealant is the restoration of the original appearance of the surface after all kinds of deformations. Highly modular, fireproof, heat-resistant, water-resistant, elastic, non-shrinking, fast-hardening sealant withstands heavy loads
After applying it, dirt and mold will not appear. Aesthetic and reliable, does not contain harmful additives. Easily copes with any temperature fluctuations.
One of the leading suppliers of sealants is Soudal company, whose main office is located in the Belgian Turnhout. Universal colorless Soudal 300 ml is a high-quality composition with the smell of acetic acid. Ultraviolet radiation, precipitation does not affect it. It is applied very simply on almost any surface: concrete, brick, wood, glass, ceramic, etc. It has a wide range of various colors that do not fade over time
Tips & Tricks
If you carefully study the instructions for use and recommendations for purchasing a sealant, then the purchased product will serve for a long time and will be of great benefit:
- A high-quality sanitary sealant must contain silicone rubber. It does not have an unpleasant specific smell and does not pose any danger to humans.
- When using the substance, you must act carefully and carefully, then the appearance of the room will not be spoiled. Before applying the sealant to a specific area, it is necessary to degrease it and dry it thoroughly, since the product will not adhere to a wet surface.
At home, it is convenient to use the substance in tubes. When it comes to huge volumes of work, the preference is given to the pistol.
- A tube is inserted into a special gun, called a mounting gun, which has been previously cut with an inclination of slightly less than 50 degrees, a tip is put on it, after which the agent is squeezed out. To obtain a neat seam, it is necessary to adapt to push the gun with the appropriate force. To avoid the penetration of excess funds, as well as to obtain an aesthetic seam, the edge of the joint is processed with adhesive tape, which must then be removed.
- Remove excess sealant from the surface with a damp cloth or sponge. Then try to trim the seam with your finger or a spatula.
- It is important to know the drying time when using a sealant. After applying the composition, the top layer will dry within a few hours. Complete drying will occur no earlier than in a day.
If the layer thickness is only 1 mm, then the substance will harden earlier.
- In order for the composition to dry faster, it is necessary to improve ventilation in the room. It is desirable to artificially double the air temperature. To speed up the polymerization, you can spray water on hardened joints. Removing the previous layer before applying a fresh one also helps the composition dry faster.
- To purchase a quality product, it is necessary to take into account the shelf life of the product, focus on the plasticity and elasticity of the product during temperature fluctuations, inquire about the quality of adhesion (adhesion), compression of the product after the liquid evaporates. You need to know how the material stretches before it breaks.
In more detail on how to properly use silicone sealant, the following video will tell.