Silicone sealant adhesive - use and scope

Silicone sealant adhesive - use and scope Silicone glue-sealant and its use in everyday life

In the construction and repair industry, the most different materials and means.

Silicone adhesive sealant is a versatile silicone-based compound that is popular with artisans. Due to the high degree of reliability, as well as its excellent qualities, it is also used for a number of industrial sectors - for example, in the automotive structure in order to fix automotive glass, as well as for sealing parts.

You should familiarize yourself in more detail with all the properties, the principle of the composition, and also the algorithm for working with them.

Description

What is silicone?

It is a high-strength type organosilicon polymer, as well as a chemical compound type, high molecular weight.

In appearance, liquid silicone will look like a resin, and synthetic rubber is used to create it. It was made in the middle of the 20th century and is now widely used. The most popular products based on it are sealant and glue. In the production of adhesives, in addition to silicone, other substances are also used, which can be called basic additives and fillers. What can be glued with such a tool and where is it used?

Silicone-based composition is perfect for gluing:

  • Silicone sealant adhesive - use and scope Tiles.

  • Ceramics.
  • Aluminum.
  • Metal.
  • Paper.
  • Plastics.

  • Glass products.
  • Rubber.

The scope of silicone is so wide that it is unrealistic to list all directions. In industry, it can be used to make dishes, kitchen utensils, for example, sets of baking tins, as well as bags for creating pastries. Silicone can be used to seal the bathtub, window glazing, it is indispensable in cosmetology, as well as in medicine.

Also, silicone adhesives are often used for the repair work of equipment, radio-type products, electronics, as well as for crafts. But the most popular tool in everyday life, construction, for repair work, especially in places where an increased degree of resistance to moisture is required.

Details

Differences between adhesive composition and sealant

There are no big differences between the products, and due to the composition often referred to as adhesive sealant. Features, cost, main line-up are so similar. But with a large number of additives and texture, they can differ from each other.

Typically, sealants are thicker and glue is thinner. There are differences in the form of release, the form of a bottle, a nozzle, because this material has a special purpose. Usually, adhesives are packed in small-sized tubes, and they can be applied without a construction gun. A construction metal gun is required to work with the sealant. Sealing of seams that have a large length, sealing pipes, windows, walls, plastic structures, and even glass is done with a sealant.

But gluing tile masonry, gluing corners, shoes, dishes, applying to self-adhesive adhesive tape for a bath can also be done with an adhesive.

Properties and composition of the adhesive

Up to 50% of the composition of the material is presented as artificial rubber. Most builders prefer to use transparent silicone adhesive sealant, but there are white, black, and bright shades on sale, it all depends on the needs.

According to GOST, the tool may include the following components:

  • Extenders.
  • Plasticizers.

  • Thixotropic additives.
  • Catalysts (these are accelerators for the curing process).
  • Fungicides and antiseptics.

Many home remedies are sold as a one-part formulation. Only certain professional adhesives are sold as two-component adhesives complete with a hardener.

Due to the properties of silicone, the glue seam after hardening will become frost-resistant - it will retain its quality even in cold temperatures (up to -45 degrees). The stability of the seam is also too high under high-temperature exposure - up to +210 degrees. By the way. A number of formulations can be found commercially for use at lower and higher temperatures. At what temperature does the material melt, which is indicated on the package.

Certain products have a melting point above +300. . + 400 degrees.

Silicone compounds are more resistant to water, and this ability makes it possible to reliably glue aquariums, dishes, and use for glass. The glue is electrically conductive to a minimum, and it can even be called an isolate - it practically does not conduct electric current.

Other seam properties:

  • Elasticity.
  • No oxidation.
  • Fortress.
  • Repulsion of dirt and dust.
  • Resistant to ultraviolet rays and radiation.

  • Long-term preservation of color transparency.

Only high-quality formulations are truly resistant to moisture, and also have the rest of the listed properties. If it productively includes cheap silicone, poor quality plasticizers, the service life can be reduced several times. It is convenient to use silicone material, it is moderately thick, and at the same time it will flow into the smallest cracks and pits. The product is non-toxic, safe for humans, unlike the popular Moment.

Skills for gluing products are not required, and the work is very simple. The material will dry out very quickly.

Varieties and features of the means

The rubber in the adhesive composition can be fluorosiloxane and siloxane. Polymerization of each of them will occur from contact with air, due to which the agent acquires a bond with the surface, becomes harder, but more elastic. So that nothing hardens ahead of time, silicone glue, like super-glue, or "liquid nails", which are released in a sealed container.

All silicone-based products are divided, depending on the components included in the composition, as well as the pH level, into the following types:

  1. Silicone sealant adhesive - use and scope Acidic - their cost is the lowest, but not all types of materials can be glued with them. They are categorically not suitable for metal - they can cause corrosion, and for delicate types of materials, such adhesives are completely capable of corroding.
  2. Alkaline - contain substances such as silicon, amines, and they are the most resistant to heat. Due to their ability to withstand high temperatures, they usually have a special purpose, there is no point in doing work in everyday life with them.
  3. Neutral - it is with such means that all known materials can be glued, and the connection will turn out to be strong and also durable.

    Among the disadvantages, you can indicate the high cost.

Most moisture resistant silicone sealant adhesives, most products contain antiseptics, and then they can be glued in places that are prone to rot and mold. Another difference between the funds is in the method of application, form of release, volume, and also in what is their cost and the manufacturing company.

How to choose an adhesive composition?

To select the correct adhesive

Please carefully read the instructions for use. It is important to make sure that just such a material is suitable for a certain type of surface, and also the manufacturer always indicates this.

For example, if you have to glue metal products, you should make sure that there are no acids in the composition. For example, if you want to seal the seams on the tile, between the bathroom and the wall, the best option would be to purchase an acid-type adhesive. Subsequently, it will be easier to remove and renew using a remover (silicone cleaner). When repairing plumbing, many people prefer to buy a white sealant, while fabrics, household appliances, paper, kitchens are better suited for transparent material.

In general, there are several types of adhesives, buy the most suitable one:

  1. Glass (aquarium).

    Non-toxic, safe for plants, animals, and also makes it possible to glue joints and corners in the aquarium. Not afraid of ultraviolet rays, water, has high reliability.

  2. Sanitary. Here we are talking about antiseptics, fungicidal additives, and therefore it will be shown for use in the bathroom, kitchen, sanitary facility, and also where the level of humidity is often increased.
  3. Automotive.

    It will be a sealant for joints, as well as for laying in equipment and cars.

  4. High temperature. Before application, the agent is placed in a thermal gun, where it will be heated, and then applied to the surface. The adhesive composition is useful for repairing furnaces, other products where exposure to high temperatures is predisposed.
  5. For outdoor work - such tools are useful for repair work, various products that are in the air.

    They are quite stable, do not react to precipitation, as well as changes in temperature conditions.

Now let's talk about how to work with such a roster.

Working with adhesive sealant

How to use silicone adhesive?

Difficulty with repairing different products will not appear, and even a beginner can handle it. But the effectiveness of the work will depend largely on how well the foundation is prepared. It is important that the substrate is clean, dry and smooth.

It must be degreased before use, and this will help improve the quality of adhesion. You can degrease the surface using any suitable means - a detergent solution, a special composition. After drying and degreasing, the edges of the joints can be pasted over with paper tape, and so it will turn out to avoid blots, blemishes, the layer will be applied evenly.

Then the order of work will be as follows:

  • Cut off the spout of the glue, and if it will be realized in a small tube, or remove the cap ( it is better to use a special dispenser for adhesives, and it will not allow excess funds to come out).
  • When working in large areas, it is worth buying glue guns.

  • Apply material to each of the surfaces to be bonded and secure or glue in a seam.
  • Surfaces should be glued within 10 to 30 minutes as stated in the instructions.
  • The product can be fully operated in a day, and during this period the polymerization process will take place.

Raising the room temperature by 5 degrees from room temperature will speed up the polymerization process in half. The thickness of the adhesive layer more than 2 cm will not make sense, since the product will not solidify in the depth of the seam.

Excess sealant should be removed immediately with a cloth and spatula.

The best brands and cost

The price of silicone glue-sealant is usually from 200 to 540 rubles per package with a volume of 330 to 500 ml, and also the cost will greatly depend on the manufacturer. Glue in a package of 10 to 30 ml will cost much less - from 30 to 110 rubles.

Below are the brands of the best manufacturers that are sold in the store:

  1. RTV 118Q. This is a food grade glue that can come into contact with food without being harmful to health.

    It is used most often for gluing dishes, ceramics, and in everyday life it is needed to repair remotes and other rubber products. Withstand temperatures up to +250 degrees.

  2. Jaba is an excellent glue for aquariums, harmless to plants and living creatures. You can glue glasses, ceramics, seal small leaks.
  3. Lostite 5699 Neutral Gray - Used for making gaskets and can be used to glue rigid flange bases and seal molded casings and machine transmissions.

  4. "Pentelast 1143".It is an acidic multipurpose adhesive that is extremely durable and suitable for all materials other than metal.
  5. DoneDeal. The heat-resistant adhesive is used for car operation and is able to withstand vibration, high temperature, humidity, and chemicals.
  6. "Autogermesil".

    Waterproof and unstable glue, which is sold in a volume of 80 to 150 grams and 5-7 kg. Used for gas tanks, bodywork, engine, radiators, can even be used for the cooling system.

With proper use of products, the glue seam will serve for many years, but if necessary, you can replace all new layers of the product.

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