The use of fiberglass for walls. Painting fiberglass Fiberglass with an adhesive layer

Why do you need fiberglass gossamer? What is the purpose of this material in construction? First of all - as an additional protection of the finishing finishing layer from cracks (microcracks) that form on the surfaces. Of course, cracks don't always show up. But if you doubt the reliability of the surface, use fiberglass.

The main characteristics of fiberglass

Painting fiberglass is made from fiberglass threads by pressing, which is somewhat similar to the technology for the production of ordinary paper, only fiberglass and organic resin are pressed in this case. As a result, homogeneous fiberglass sheets are obtained with a density of 25 to 50 grams per 1 square meter.

Properties of painting fiberglass:

• Reinforces walls.
• Not afraid of water, chemicals.
• Not hot.
• Does not attract dust.

It should also be noted that fiberglass cloths consist only of natural components. They do not cause allergies, allow steam and air to pass through, and prevent the formation of mold and fungus.

Unlike glass fiber, fiberglass does not have a woven pattern or a pronounced relief on its surface. The cobweb structure after staining appears as a kind of decorative texture. However, after puttying the cobwebs and further painting, you can get a flat and smooth, matte (depending on the paint) surface.

Fiberglass (cobweb) is usually produced in rolls 1 meter wide and 20, 30, 50 meters long.

When should fiberglass be used?

Painting fiberglass cobweb is recommended for use on plastered or plasterboard-finished walls (ceilings). This is due to the fact that these surfaces are prone to cracking, and the gossamer fiberglass additionally reinforces the surface of the wall or ceiling, making the base more durable. It should be noted that drywall has problem areas - joints. And with proper installation, careful gluing of the joints with a sickle, it is quite possible to abandon the cobwebs on drywall.

Let's decide when to use fiberglass gossamer, and when it is not needed:

• Monolithic ceiling for painting - it is recommended to use fiberglass.
• Slab ceiling with rustication for painting - after sealing the rustication with sickle, we use fiberglass.
• Plasterboard ceiling - after sealing the joints with sickle, it is recommended to use fiberglass.
• Plastered walls for painting - it is recommended to use fiberglass.
• Drywall walls for painting - it is recommended to use fiberglass.
• The use of decorative plasters as a finishing layer - the use of fiberglass is mandatory.
• Use as a finishing layer of wallpaper of any type - no fiberglass is required.

How and what to glue fiberglass

If this is your first time encountering this material, keep in mind that sticking fiberglass is much easier than any wallpaper, because the glue needs to be applied only to the wall, and the canvas itself is very light and adheres well to the surface.

During work highly recommended use special glue for fiberglass. Also, you will need a roller, brush, tape measure, paint (stationery) knife, spatula (preferably rubber) and a bandage mask (to avoid getting particles of fiberglass into the respiratory tract).

Depending on the desired result, the fiberglass, after gluing, is puttied with a finishing putty. This removes gossamer texture, canvas seams, and other imperfections, resulting in a relatively even, smooth surface. If you do not want to additionally putty fiberglass, then you will have to consider the following:

• The surface under the fiberglass (cobweb) should be well prepared (at least two layers of putty, cleaning and primer).
• Double gluing of the canvas is required. In this case, the glue is applied (with a roller) to the surface to be glued, and then on the already glued sheet of the cobweb (with a roller or a rubber wallpaper spatula).
• During work, you need to achieve perfect docking of canvases. As an option - gluing with an overlap, followed by cutting two panels with a paint knife. Also, do not forget that the material is relatively fragile, and any awkward movement will lead to tearing of the canvas.
• The consumption of paint increases, as the surface will have to be painted not in two layers (as usual), but at least in three layers (due to the structure and density of the fiberglass).

It should be noted that the first two points should also be followed if the fiberglass is planned to be puttyed in the future.

Finishing works in construction occupy a leading place, because only thanks to their high-quality performance, an attractive appearance of the interior of the premises is ensured. But if the technology has not been followed, and the building has not yet given final shrinkage after erection, then literally small cracks may appear on all surfaces.

In the worst situations, they are large enough and highly visible on the plane. In less severe cases, they appear as small, barely noticeable defects in the form of a thin gossamer.

One way or another, these undesirable changes spoil the appearance of the finish and worsen living conditions.

Large crack protection

To prevent damage to the appearance of the finish when the building shrinks, special materials are used. During rough finishing, for example, when plastering or applying the first layer of putty, a paint grid is used. It is a woven rolled canvas with a large window made of thick fibers. The grid fastens the first layer of finishing, excluding its cracking during the further operation of the building. But this allows you to exclude the protection of the finish from large cracks.

Protection against small cracks

Small ones, even with the use of a grid, can still appear over time. To exclude them, a material of a different structure is used - fiberglass, its application is extensive, but the goal is the same. And it consists in fastening the finishing layer of the finish, excluding the formation of many small, barely noticeable cracks in the corners, at the transition points from one material to another. For example, from a drywall construction to a block wall.

Fiberglass, being an ultra-thin material, Provides surface protection against cracking. It's all about its properties and chemical composition.

It is made of durable fiberglass, which is very difficult to break with normal human force. And due to the fact that it has a translucent structure in the form of a cobweb, the finishing layer penetrates through it and hardens. As a result, fiberglass is in the thickness of the finish, effectively reinforcing it.

Reasons for the formation of cracks

Painting fiberglass is a non-woven material in its structure, which is obtained by pressing glass fibers to form a very thin film. As a result of this process, the fibers are strengthened, and a characteristic cobweb pattern is acquired. Because of this, it has received its wide application.

And the main purpose of the material is to protect the surface from the formation of microcracks and other subtle defects, which over time can develop into serious problems. The formation of cracks is often not the result of the unprofessionalism of the builders who carried out the repair:

• Most often, this is due to the peculiarities of the shrinkage of the building, which is explained by the compensatory expansion of reinforced concrete structures. And this is an inevitable process that overtakes any newly built building.
• In addition to this natural shrinkage process associated with the drying of traditionally used materials for construction, there is also a man-made factor that is associated with regular vibration created by passing vehicles. This is especially true near railroad tracks. Up to a significant destruction of buildings.

If earlier, to eliminate the cracks that appeared on the surface of the walls and ceiling, it was necessary to remove and reapply a new layer of finish, today there are other technologies. Fiberglass, as a universal material, allows you to securely fasten the base, ensuring effective fixation of the finish.

Fiberglass gossamer, as it is called among professional finishers, has a wide scope:

• It is glued to the walls to fix the finishing putty or decorative plaster finish.
• It is used to reinforce ceilings, providing the same effect as with a wall.

In terms of its qualities, it is not only an ultra-thin material, but also very light, so it can be used on surfaces at any angle. It doesn't have to be perfectly even though. Due to its small thickness and elasticity, fiberglass can be glued to the ceiling with any curvature, but not more than 3 mm per 1 m. This is its main advantage.

As an ultra-thin material, it does not spoil the original surface structure, but, on the contrary, strengthens it and provides increased wear resistance to various mechanical and other types of influences.

Material Advantages

Being an innovative development of the world's leading manufacturer, fiberglass has the following positive qualities:

• The material is hypoallergenic. That is, it does not cause irritation of the mucous membrane both during installation and when performing other manipulations with it.
• Does not burn even in the presence of a powerful catalyst. Therefore, you will be provided with additional protection against ignition and fire.
• Has a high degree of elasticity and is light in weight so it's very easy to work with. But when performing any actions, small particles can chip off from it, which can only cause a sneeze. Therefore, when working with it, it is recommended to use a respirator or other means of respiratory protection.
• The material is non-hygroscopic, which indicates the ability to pass moisture. Therefore, all surfaces will have an optimal moisture index, while maintaining their strength and overall integrity.

It is all these features that make fiberglass an increasingly frequent and indispensable building material that is used in the intermediate cycle of surface finishing.

Varieties and main technical indicators of the material

Being a building material used in the finishing of all surfaces to be plastered or covered with a layer of putty, it has certain technical characteristics that impose restrictions on its use and establish rules for how to work with it. These include:

Fiberglass can be used not only for the final surface putty, but also directly for painting, being an independent finishing coating. Therefore, it can withstand wet cleaning, does not accumulate electrical charges when interacting with other dry objects, and is not a dust collector. Therefore, it is environmentally friendly not only when used in decoration, but also after, directly, during the operation of the premises.

Material safety

After the fiberglass is glued to the surface, it becomes very durable and resistant to mechanical stress. But while it has not yet been installed, it is quite dangerous and this danger lies in the fact that its microparticles, when bent, break off the structure and fly in the air. So they can easily get into the respiratory tract, and if they get on the skin, they cause irritation and itching. Therefore, in order to protect yourself from these adverse factors, it is necessary to observe elementary safety precautions and it consists in observing the following rules:

Fiber mounting technology

It should be understood that fiberglass is not designed to line walls. This material is needed to strengthen the surface and prevent the formation of defects in the form of cracks on it, so the walls must first be leveled so that they have minimal deviations of no more than 3-4 mm per 1 m. The surface must be puttied.

When gluing the web on gypsum plasterboard structures, it is necessary to ensure that their joints do not coincide with the seams of fiberglass. To ensure high-quality installation of the material, the surface is pre-treated with a deep penetration primer.

The installation of the canvas must be carried out on special adhesives, which do not contain starch and other similar components. Such substances are usually produced by the fabric manufacturers themselves. The most common brands of adhesives include Wellton or Bostick.

In order for the surface to have the required roughness parameters and withstand the loads placed on it, it is necessary to observe the mounting side. The fact is that the material on both sides has a different texture. One is smoother, the other is rougher. Accordingly, the rougher side of the canvas is glued to the wall.

Canvas gluing process:

As for the puttying of the surface, the need for it depends on what effect is expected to be obtained. The fiberglass itself has a beautiful structure, but it will take a lot of paint to evenly color it. Therefore, many decide to apply a finishing layer of putty, which will not interfere with the overall integrity of the finish, but rather increase its wear-resistant qualities.

Fiberglass for putty is a simple, fast and proven way to give strength to the interior decoration of walls and ceilings, and align them, at the same time making additional reinforcement. Gossamer, as builders call fiberglass, is made by pressing and is a translucent panel, usually rolled into large rolls.

The opinions of experts on the need to level the gossamer differ, some of them believe that gluing the canvas is enough, while most builders are convinced that puttying the fiberglass is essential.

The latest trend in modern finishing works is the gluing of fiberglass before the final stage of decorative wall decoration. The material gained popularity because of its useful qualities, but not everyone came to a consensus on how to use it and how to cover it after gluing, paint fiberglass immediately after gluing, or pre-apply a protective layer on it.

The need to use fiberglass when working with drywall was dictated by the occurrence of cracks in this building material, which mainly appeared at the joints, along the seams. Previously, a sickle mesh was used, but it turned out that it does not provide sufficient guarantees of strength and does not always prevent the formation of cracks, especially if they appear under the influence of building shrinkage or sudden temperature changes. The trend towards the use of fiberglass appeared in order to avoid such a nuisance.

By itself, the building material is torn quite easily, because it is made of thin strands of fiberglass, fastened together by an organic compound. However, on the wall, such a canvas acquires non-analogue reinforcing properties and helps to ensure the integrity of the finished wall coating for a long time.

The main advantages of the material

Gossamer or matting, as fiberglass is called in professional slang, has a lot of invaluable properties that led to its widespread use:

• environmentally friendly, because it is made from natural materials;
• has increased strength and exceptional wear resistance;
• practically not subject to temperature and mechanical damage;
• does not accumulate static electricity and therefore does not attract dust;
• does not cause any allergic reactions in the inhabitants of the dwelling;
• possesses exceptional fire resistance, does not ignite and is often used for finishing passages that provide evacuation of people in case of fire in large buildings;
• in the role of a reinforcing frame, it absorbs the finishing material and gives it exceptional strength;
• does not contain any nutrients for fungus and mold, is not exposed to their harmful effects.

There are no disagreements about the use of cobwebs in finishing work done with cutting-edge materials. The main subject of controversy is whether it is possible to immediately paint the reinforced surface or is the use of putty absolutely necessary?

How necessary is fiberglass putty?

People who do not have special knowledge, and especially those who move into a new room where interior decoration must be done on their own, often wonder whether it is necessary to putty already finished fiberglass or is it quite enough just to paint it. After cracks appear on the surface of the newly finished walls and ceiling, and tears and bubbles appear on the pasted wallpaper, it becomes clear that this was necessary. Especially when, when trying to remove the warped wallpaper, the cobweb will follow them.

If painting or wallpapering was done directly on fiberglass, the fiberglass texture, seams, and joints, which in this version will remain uncovered, will definitely be noticeable. This will give a freshly finished room a not very neat look.

Fiberglass for putty should be purchased dense enough, this will simply further enhance its reinforcing properties. Such material is more expensive than thinner, but this is not the option on which you should look for a way to save money. Re-repair when the thin gossamer fails will be much more expensive than the small difference in price between denser and denser extruded material.

Material selection

Both the putty and the fiberglass adhesive must be of the highest quality, each layer must be completely dry, and only after that can the next one be applied. To solve the problem, than to putty, you can purchase two types of material or use a universal ready-made composition. It can be applied at any stage, so as not to think about whether I putty with the same composition.

The web, despite its slang name, should be acquired quite dense, and it is necessary to consult with a specialist what kind of density is optimal in order to stick it in specific conditions (private house, apartment in an apartment building, new building, secondary housing).

Glue on fiberglass takes more, because this building material is highly absorbent, and its consumption is much greater than that of glass.

Surface preparation

The main step in gluing fiberglass is cardinal surface preparation. Glue fiberglass should only be on the prepared wall and stock up on the necessary tools and materials.

The main part of the preparatory stage consists in applying a layer of putty on drywall and then sealing problem areas with putty. These include joints, chips, mechanical damage, corners and fasteners.

Compliance with technological standards is a rather complicated process, but still it does not constitute much wisdom and even a non-construction specialist can carry it out:

• Before puttying, it is recommended to clean the application sites, especially if other work has been carried out in the room before.
• Puttying the wall under the fiberglass should be done with the utmost care, trying to ensure that the places of sealing do not differ in convexity in relation to the rest of the wall.
• Seams should be sealed especially carefully, using a spatula and additional grinding, creating the most even surface.

• If, on the other hand, damage or joints require a significant layer, and the putty sticks out strongly, so that it can hardly be repaired by sanding, an additional layer is applied over the entire surface of the wall.
• Before you start gluing the fiberglass, you must finally sand the dried layer of putty mixture and remove dust and plaster contamination from the rest of the surface. Experts recommend doing this with a damp sponge and a vacuum cleaner.

The application of a new leveling layer on it, as well as the quality and safety of the final finishing coating, depend on how evenly the surface will be finished on which the reinforcing base will be glued.

Sticking fiberglass

For quick and accurate installation of fiberglass on the ceiling, mark the roll according to the required length, and cut the pieces in advance. Glue must also be prepared in advance, if, in order to save money, it was purchased not in finished form, but in the form of a concentrate.

When making the composition at home, you must follow all the instructions indicated by the manufacturer. Protective clothing must be worn to prevent fiberglass particles from getting on the skin, and be armed with a brush-brush for applying glue. It allows you to initially apply a thick layer, which is necessary, given that fiberglass absorbs glue in large quantities.

When everything is prepared in advance, the process moves quickly:

• The first layer is glued from the corner, the surface is leveled by hand.
• A smoothing spatula removes air and excess glue.
• If necessary, excess fragments are removed with a construction knife.
• Glue is applied to the wall, and after laying the cut fragment - on its surface.
• The process is carried out continuously - pasted one sheet, followed by a second joint, and so on.
• At the inner and outer corners, the material is slightly trimmed so that the tear line is not uneven.
• It is important that the joints of fiberglass and drywall fall in different places, otherwise the seam will certainly crack.

The glued material dries for at least a day in a room where the possibility of drafts is eliminated. Before leaving the walls to dry, you should definitely inspect the reinforcing layer for flaws and eliminate them. On the finished wall, every bald spot and bulge will be visible.

On the video: we glue the fiberglass correctly.

Important nuances

If the finishing is not done by hand, but by craftsmen interested in finishing it as soon as possible, they may insist that the surface can already be painted. If you do not putty fiberglass, then paint on it will have to be applied 5-6 times more, because fiberglass has a high absorption capacity. For wallpapering, it is even more necessary to prime the fiberglass and apply a putty layer, because the entire texture of the glass fibers will be clearly visible, and the wallpaper paste will also go away.

In the future, a large amount of wallpaper glue can lead to damage to the wallpaper under the influence of external conditions. So the question of whether it is necessary to prime and putty is decided positively if the owner wants an excellent look and guaranteed durability of the result.

How to putty, even a non-specialist knows. The finished composition is applied with a spatula in the form of the first layer, it is allowed to dry, then the second is applied, which is polished after drying with a grinder, grater or sandpaper. And only then you can paint or glue the wallpaper.

How to putty on fiberglass (1 video)

What is painting fiberglass?
Painting fiberglass, or as it is also called "spider line", like glass, consists of fiberglass threads. Only, unlike wallpaper, painting fiberglass is not woven on machines. In the manufacture of "gossamer" fiberglass is pressed in a manner similar to the production process of ordinary paper. The result is thin and perfectly smooth sheets with a density of 25-50 grams per 1 m2. Despite the similarity of the manufacturing process, fiberglass is very different from paper sheets - they are not afraid of water, chemicals and mechanical damage, they do not burn, do not accumulate static electricity and do not attract dust, they reinforce the walls. But they also have qualities that resemble the properties of paper - the “spider web” canvases consist only of natural ingredients, let air and steam through, prevent the formation of fungus and mold on the walls, and do not cause allergies. Simply put, fiberglass has all the same qualities as cullet - with the only difference that they do not have a pronounced relief and wicker pattern. But you can repaint fiberglass as much as you like - since there is no relief, there is nothing to be afraid that it will be lost.

Why do we need painting glass canvases?
Why do you need to glue something on the walls that you are going to paint anyway? Everything is very simple. Fiberglass allows you to easily and quickly prepare the surface for painting - you do not need to level the walls for a long time, and putty small cracks - it is enough to putty large ones. You can glue the "cobweb" on any surface, be it concrete or brick, as well as drywall, chipboard, plastic or metal. "Spider web" will hide small cracks and irregularities that are on the walls, and, in addition, protect them from the formation of new ones. The fact is that the walls in new buildings shrink for several years, and because of this, cracks appear on them. As a result, ordinary paper wallpapers will simply tear, plaster will crumble. And the cobweb will not only withstand all these loads and hide the existing cracks, it will not allow them to grow and protect the walls from the appearance of new ones.

How to work with fiberglass?
As mentioned above, the web is surprisingly easy to use. In order to stick it on the walls, you must first clean the surface of dirt and dust, putty large cracks, if any, and prime the walls with a weak adhesive solution, or a special primer, such as Oscar latex primer. Gluing the "spider line" is easier than ordinary wallpaper, because the glue is applied to the wall, and not to the fiberglass. Moreover, for gluing the "cobwebs" it is best to use a special glue for Wellton fiberglass. Cloths of fiberglass are glued end-to-end and leveled with a spatula. Fiberglass has another amazing property - it can be safely glued using the "overlap" method. This method is indispensable when working on broken and curved surfaces, where it is required to apply the coating in small canvases. Fiberglass is also overlapped when, due to improper storage or careless transportation, the edges of the canvas are damaged and it is impossible to stick them end-to-end. The gluing technology is quite simple: apply glue to the surface, glue the first canvas, or a piece of fiberglass, without smoothing it very much along the edge of the “joining”. After that, apply glue to the surface with a slight overhang on the just pasted canvas, attach a second piece of fiberglass and lightly smooth with a spatula without effort in the area of ​​\u200b\u200b"overlapping" the two canvases. Immediately after that, with an ordinary clerical knife, make a cut in two canvases, then remove the cut off parts of the “lower” (first) and “upper” (second) canvases and smooth both canvases at the junction with one movement of the spatula. Then you need to prime the surface of the fiberglass with diluted glue and wait until it dries. Well, now everything is ready - you can start painting, or decorate the walls as you wish!

The use of a fiberglass-based canvas eliminates the formation of cracks during the drying of the plaster and the shrinkage of the building, and simplifies the preparation of plasterboard walls for painting.

As a result, it is possible to achieve a higher quality finish on walls and ceilings.

Choosing glue for paint cobwebs

Fiberglass is glued to a special glue for glass. The most popular among professional finishers are adhesives of the following brands:

• OSCAR is an acrylic-based universal dispersion adhesive. Designed for gluing fiberglass painting canvas and glass wallpaper for painting on various surfaces (concrete, brick, drywall, OSB, etc.).

Glue Oscar for fiberglass gossamer is available in the form of a ready-made solution, as well as in the form of a dry powder.

The composition of the adhesive includes an antiseptic additive, which prevents the formation of mold in rooms with high humidity. The adhesive is applied directly to the surface to be pasted, which facilitates the workflow, the high elasticity of the composition allows you to adjust the position of the canvas.

• BOSTIK 70 is a modern adhesive based on water dispersion (PVA) and starch. Designed specifically for gluing gossamer, glass and fiberglass.

Suitable only for dry rooms. Works great on both absorbent (drywall, chipboard, concrete, brick and plaster walls) and painted surfaces. Bostic glue for cobwebs is sold ready-made, in plastic 15-liter buckets.

• Nortex is a universal adhesive based on modified starch with the addition of an antifungal component. Produced in a dry and ready-to-use form, suitable for all types of cullet (fiberglass).

When dry, Nortex becomes colorless and leaves no stains. The sticker is dense "cobwebs" is made immediately after applying the adhesive to the wall.

Step-by-step instructions - how to glue a cobweb on the ceiling and walls

Painting fiberglass is the most affordable and most effective material for dealing with cracks in walls and ceilings.

It perfectly masks the joints of GVL and KGL sheets, making the surface monolithic and more durable.

To perform the work, you will need the following materials and tools:

• primer (you can use ready-made glue for fiberglass);
• roller for applying glue to the wall;
• a clean, dry cloth to remove excess glue;
• plastic spatula for leveling wallpaper;
• a construction knife with replaceable blades and a wide metal spatula for cutting wallpaper;
• ladder;
• respirator (to prevent fiberglass particles from entering the lungs).

Working with a "cobweb" in complexity does not differ from the process of gluing ordinary wallpaper without fitting and takes place in several stages:

1. Surface preparation. First you need to clean the wall / ceiling from dirt and peeling plaster, putty large flaws, if any, and prime the surface with a latex primer or a weak solution of glass wallpaper glue.

1. Applying glue. With a fluffy roller or a wide brush, apply the adhesive to the wall or ceiling (approximately one glass of glue per 1 square meter of wall). It is desirable to apply glue on the surface to be treated with the expectation of 2-3 strips of canvas.

1. On a wall/ceiling evenly covered with glue, a “cobweb” canvas is superimposed and evenly straightened so that there are no wrinkles and bubbles. It is convenient to expel air from under the wallpaper using a wide plastic spatula, moving in a herringbone pattern (from the middle to the edges). Then, in the same way, the second strip of fiberglass is glued end-to-end with the previous one.

Which side to glue the cobweb? Indeed, fiberglass has two sides, the wrong side and the front. You need to glue the wrong side - the one that has a more fleecy structure.

Second way: Unfortunately, it is not always possible to join two fiberglass sheets perfectly evenly, especially when the edges of the canvas are damaged.

In this case, the cobweb is glued in a different way - overlapping, followed by cutting two canvases with a construction knife.

To achieve a perfect joint in the center of the resulting overlap, both layers are cut with a sharp knife and the cut strips of both sheets are carefully removed.

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FAQ

On what surface can you glue the "cobweb"?

For almost any - concrete, wood, drywall, plastic, peeled brickwork, etc. The most important thing is to prepare the walls and ceiling - putty large holes and cracks, remove all protruding bumps and primer.

What is the consumption of glue for fiberglass gossamer?

Dry glue like Oscar will need about 400-500 grams per 50 square meters of "cobweb". The consumption of finished glue is about one liter per 5 square meters of fiberglass.

Is it possible to glue wallpaper on a cobweb?

Fiberglass is not a finishing coating, it is used to reinforce the surface of walls and ceilings before finishing work. Gluing wallpaper on fiberglass is impractical for several reasons.

Firstly, the surface of such a wall has a textured surface. To glue the wallpaper, you will have to re-plaster the walls, which will lead to an increase in the cost of repair work. The best solution would be to paint the walls lined with fiberglass.

What is the best way to paint painting fiberglass?

It all depends on the operating conditions of the room, on what influences the surface will be exposed to. A practical solution would be water-based latex paint.