Stiz-A Sealant: color, composition and other characteristics

During the work with metalplastic details of windows, stained-glass windows, balconies the special means is required for reliable fastening of joints. An excellent choice is Stiz-A sealant. This is a popular composition that does not require prior breeding, immediately ready to go. Positive technical characteristics of the product prove that it is the best among similar materials.

Means "Stiz-A" is recognized as one of the best means for insulation, produced by a domestic manufacturer - the Russian company SAZI, which has been a supplier of these products for about 20 years and is well known to experienced builders for the high quality of their materials.

Stiz-A is a single-component, durable and durable acrylic-based material.

In most cases, white material is used for glass packs, but it is also available in dark and light gray, brown and other colors required by the customer.

The specialty of the sealant is its high adhesion with surfaces from polymeric materials., that's why it is in demand when building plastic windows. In addition, it can be used to seal any street seams - cracks and voids in metal, concrete and wooden structures. Stiz-A is specifically designed to strengthen the outer layers of the assembly joints. In addition, the composition has antibacterial agents that prevent fungus.

Products are available in packs of 310 and 600 ml, for large-scale works it is more profitable to immediately purchase the composition, packaged in plastic buckets of 3 and 7 kg.

Product benefits are:

• strict compliance with GOST 30971;
• resistance to direct sunlight;
• high vapor permeability;
• resistance to high humidity;

• high degree of plasticity;
• rapid formation of the primary film (within two hours);
• slight shrinkage during operation - only 20%;
• frost and heat resistance of the material, it can withstand temperatures from -60 to +80 degrees;

• optimum adhesion with most work surfaces, including plaster, vinyl chloride polymers, wood, brick, metal, concrete, artificial and natural stone, other materials;
• the possibility of staining after complete hardening;
• adhesion even with a wet coating;
• resistance to mechanical deformations;
• product life is at least 20 years.

Of the minuses of this product can be allocated short storage time - with the integrity of the package from 6 to 12 months. A relative disadvantage is its elasticity, which is somewhat lower than that of silicone sealants.

Acrylic composition is rarely used for interior work due to its porous structure., which eventually begins to absorb various evaporations, and then its layer may darken and look sloppy. But if you paint it after solidification, you can avoid such a problem.

Using a vapor-permeable acrylic sealant, you should know how to properly seal the gap with it. Drawing is carried out at already established polyvinylchloride slopes. To work you need a basin of water, construction tape, knife, spatula, sponge, rags or napkins. If the material is packed in a special bag (cartouche), then you need a mounting gun.

Procedure:

• the preparation of the coating provides for trimming the mounting foam, its surface should be smooth, not have gaps and strong porosity (pore size up to 6 mm in diameter is allowed);
• the surface near the foam is thoroughly cleaned of dirt and dust, sometimes it makes sense to use scotch, at the end it is wiped with a damp cloth;
• masking tape can be glued to the areas adjacent to the gap, taking into account that the sealant will cover about 3 mm window frames and walls;

• the paste is squeezed out by means of a pistol into the cracks, and at the same time it is necessary to smooth the seam, the layer thickness is from 3.5 to 5.5 mm, leveling can also be done with a spatula;
• the protruding layer is smoothed with a finger, wetting it in water, all the notches must be filled to the end, the excess composition is removed with a wet sponge, being careful not to deform the layer of the product;
• then the adhesive tape is removed, and after solidification, the seams are painted to match the walls or window frames.

Skilled craftsmen advise to carry out work in small areas., which can be processed immediately, because during the polymerization it will be difficult to correct the errors.

For degreasing coatings can not use acetone, which leaves stains and ugly spots. You can apply gasoline or white spirit.

Apply "Stiz-A" can be either with a gun, or with a brush or spatula at a temperature of from +25 to +35 degrees, full drying occurs within 48 hours. Material consumption per linear meter is 120 grams.

In order to maximally protect the seams from the penetration of cold and moisture and make them heavy-duty, a certain thickness of sealant is important - 3.5 mm. Since it is rather difficult to regulate, you should use a regular ruler with markings at the end. To do this, it is immersed to a layer of foam.Determine the size of the layer can be on the remaining tracks. After that, the damaged coating is further smoothed with a paste until it is completely flattened. It should be noted that the smaller layer has a reduced quality, which is reflected in the strength of the insulation.

Builders often use two sealants - "Stiz-A" and "Stiz-B", this also has a definite meaning. This is explained by the fact that for absolute security, it is necessary both the presence of a reliable outer layer of insulating substance and the inner one, which is provided by Stiz-B. Unlike sealant grade "A", through which moisture in the foam is displayed on the street, sealant category "B" prevents the penetration of steam and moisture from the room.

Stiz-B, on the other hand, is not intended for external use. - as a result of application, the liquid entering the assembly foam accumulates in the seam, in addition, the insulating properties of the construction foam are reduced. That is why Stiz-A is considered to be an ideal means of insulation for external joints.

According to the builders, with a large front of work, it is wiser to use formulations packed in a polymer tube or a file package, since the increased cost is compensated by the speed of the sealing performed with a gun.

How to install the window using a vapor-permeable sealant "Stiz-A", see in the video below.