Polyurethane foam tube how to use. Working with polyurethane foam without a gun: how to use. Is it possible to use a can of polyurethane foam several times?

Polyurethane foam can act as a sealant and thermal insulation material. It can be used when installing various window and door designs, when carrying out repair work different types. With its help, the tightness of structures is restored, cracks and joints are sealed.

Polyurethane foam is sold in aerosol cans, which must be shaken before use. Immediately after application, the substance begins to harden, resulting in a yellowish-colored material. Lightweight material, has good thermal insulation and sound insulation characteristics. Depending on the manufacturer's recommendations, foam can be used indoors and outdoors.

Conventional polyurethane foam has a number of positive characteristics:

Resistance to moisture, providing thermal insulation and sound insulation properties.
Possibility of using sealant during installation electrical equipment due to low current conductivity.
Resistance to fire (special fire-fighting types of polyurethane foam).
A significant increase in volume immediately after leaving the can, filling distant microcracks located in hard-to-reach places.
Possibility of gluing various homogeneous and dissimilar materials.
Environmental friendliness, absence of toxic substances in the composition, chemical inertness.

Before using polyurethane polyurethane foam and apply it to surfaces, it is recommended to check its performance characteristics on the packaging. Typically, the packaging indicates the volume of the substance after leaving the cylinder, the viscosity level and other characteristics.

Release form

Manufacturers produce polyurethane foam in different forms and types. The choice will depend on the intended use and operating conditions of the sealant.

It is customary to distinguish:

Professional polyurethane foam, which is produced in special large cylinders that must be inserted into a gun to spray the substance. Using a gun, economical consumption of sealant is ensured. Used by builders when carrying out large volumes of work.

Household polyurethane foam, which comes with a tube (it is usually used to foam cracks, joints, and gaps). Designed for household use for minor repairs and bonding surfaces.

Also, the can of polyurethane foam must indicate the recommended temperature regime using sealant. There are summer, winter and universal (all-season) polyurethane foam. When purchasing, it is recommended to pay attention to the flammability class of the material (B1 - fire-resistant materials, B2 - self-extinguishing materials, B3 - combustible materials).

Scope of application of polyurethane foam

Conventional cylinders of polyurethane foam, which are sold in hardware stores, find their application in the installation of door and window designs, as well as during installation of electrical equipment and pipes.

The sealant has a sufficient level of thermal insulation characteristics so that it can be used to seal gaps and cracks in heating systems, defects in the roof threshold, as well as provide partial insulation of ceiling, floor, wall structures and floors. It is also often used to secure Wall panels and polymer boards on the rough surface, which allows for decorative and waterproofing functions.

Polyurethane foam is used to treat external surfaces metal baths(made of steel or cast iron), which allows for a reduction in heat transfer from the metal.

If we talk about how to properly use polyurethane foam and how to work with it, then you need to clarify whether a gun is used or not. If you plan to carry out a full renovation of your home, you will have to use both professional and household foam to foam joints, seams, gaps, and install windows and doors.

You can install the gun on professional sealant as follows:

First, the canister with the substance needs to be warmed up a little in warm water to 20-25 degrees. Then you need to shake it several times so that the substance becomes as homogeneous as possible and comes out of the can smoothly and easily.
At the top of the gun, you need to remove the protective cover, then turn it with the handle down and screw on the can of sealant. You need to screw it in until a characteristic hissing sound appears, which will indicate the beginning of the substance entering the gun.
If the gun is not new and has already been used, then it is necessary to inspect it before screwing in the can so that it is washed thoroughly. If after screwing in there is no hissing, then the gun is dirty and you need to buy a new one.
Before starting to work with polyurethane foam, according to the rules, you need to shake the gun with the cylinder again, turn the adjusting screw ¼ turn and, holding the trigger, begin processing.

To work with a gun, there is no need to have any skills and abilities in the field of construction and installation work. Work is usually performed in the following sequence:

The first step is to clean the surface where the sealant will be applied to remove dirt, and then moisten it with water from a spray bottle to ensure good adhesion.

4.If the surface to be treated is wide, you need to fill it with zigzag movements, but no more than 1/3 of the volume, because the polyurethane foam will increase in size.

5.If there are any untreated areas left, they can be filled in later.

If it is necessary to carry out processing in remote areas, it is recommended to additionally purchase a special extension hose, since foam hard to reach places polyurethane foam without its use is unlikely to work.

The can usually indicates how long it takes for the composition to harden. Despite the instructions, it is recommended to wait 10-12 hours. Once the sealant has completely cured, you can remove the excess using a knife or saw.

When using household sealant, there is no provision for a gun. It’s okay if the polyurethane foam comes without a gun, since you can use it with a straw. The tube is made of polymer materials - you just need to put it on the adapter. The work is performed in the same sequence as in the case of a gun, but when using a tube you will have to put in more effort.

You can easily use polyurethane foam without a gun if you have the appropriate tube. But in construction stores, the sealant can be sold without a tube (cheap models), so you will have to purchase it separately. This should also be noted Special attention when choosing a suitable polyurethane foam.

The use of a tube is important if you are not going to perform large quantity works It is recommended to use polyurethane foam with a tube if you need to fill joints, gaps, seams, or glue various materials. Household sealant is rarely used when constructing door and window structures or when treating large surfaces. For thermal insulation and sound insulation, you should also choose professional analogues.

On video: Using polyurethane foam without a gun.

Disadvantages of applying polyurethane foam without using a gun

Using a gun when applying sealant is a guarantee of uniform release of material from the container, the possibility of saving substances, and full control over surface treatment.

If ordinary household polyurethane foam is used in a package with a tube, then the workflow will have certain disadvantages. The most notable of them are:

Significant consumption of sealant. Overflow occurs because the user must exercise control over the intensity and duration of pressing the valve. It is quite difficult to do this over a long period of time, so almost always when processing using a tube, an excess volume of polyurethane foam appears, which leads to significant overruns. Professional sealant using a gun is usually consumed 1.5-2 times slower. This results in small but noticeable financial costs(especially if a large amount of work is expected to be carried out).
If you purchased a professional sealant, then there is a high probability that it will not be possible to use a regular tube that is suitable for household polyurethane foam. The can simply will not release sealant. This point must be clarified when purchasing the material.
Using polyurethane foam without a gun is much more difficult than with one. The tubes are made from polymer material, therefore they are flexible - they are more difficult to hold in the desired position for a longer period than a pistol.

At the same time, there is no point in purchasing professional polyurethane foam or a gun for applying it if you intend to carry out minor repair work: fill gaps, seal joints and cracks between slabs, etc. thermal insulation material. In this case, you need to buy a household sealant with a tube, use it once and throw it away.

To carry out home and household repair work, one can of polyurethane foam is enough. If all the work has been completed, then the cylinder is usually thrown away as unnecessary, because after opening the substance has limited period suitability.

Manufacturers of household polyurethane foam note that their products are designed for single use. Therefore, if, several months after the first use, the sealant in the cylinder has frozen, you need to understand that this is a completely natural process.

You can give the following advice to those people who are working with polyurethane foam for the first time:

Before starting work, it is recommended to first prepare a spray bottle with water and a knife to remove excess sealant (this is done after the applied composition has hardened).
It is also recommended to stock up on a regular sponge and acetone (or a similar solvent) in advance. They will be needed if you need to wipe off sealant that accidentally gets on other surfaces (for example, on the floor or on clothing).
You should not try to remove excess polyurethane foam immediately after application - this should be done approximately 8-10 hours after treatment. During this period, the sealant will harden, so it can be easily cut sharp knife or a hacksaw.
If wallpapering has not been done in the room, then it is strongly recommended to carry out work on applying polyurethane foam (regardless of the volume of material sprayed), systematically ventilating the room.
If during the application process the sealant begins to gradually darken, this will indicate that the substance is exposed to ultraviolet radiation (direct sunlight). This kind of thing should be excluded when carrying out work.
It is strictly forbidden to treat surfaces with polyurethane foam if they are located in close proximity to open fire or hot objects. Regardless of the type, the sealant almost always contains flammable substances in its composition, which, in an uncured state, are quite capable of flaring up if suddenly exposed to an open flame.
Before starting work, it is necessary to clean the surface to be treated as thoroughly as possible. If it is dirty and greasy, then the polyurethane foam will not meet the characteristics specified on the packaging during operation.

Is it possible to use a can of polyurethane foam several times?

You can find information on the Internet that professional polyurethane foam can be used repeatedly, while household models are only suitable for one-time use.

This is a common misconception, because if you use household foam, then after using it you can clean the nozzle, remove the tube and block the exit hole for the substance. To be able to use the sealant again, it is recommended to do everything in the following sequence:

It is necessary to release a little of the polyurethane foam from the can, and, allowing it to come out, bend the tube and tighten it with metal wire. At the end of the tube, the sealant will begin to harden, but the presence of a bend will not allow the entire volume of the substance that remains in the cylinder to harden.
When subsequently applying polyurethane foam, you simply need to cut off part of the tube with the frozen substance and continue to treat the gaps and seams with sealant.

It should be taken into account that a container with sealant can be stored in this way for 2-3 weeks and no more. After several months of storage, the substance will almost completely harden and harden inside the package, so it will not be possible to use it again.

Is it possible to use expired polyurethane foam?

Regardless of the type of sealant chosen, the shelf life of the substance usually does not exceed 1-1.5 years from the date of production. At the same time, if during its use a delay of several days or weeks was discovered, then you should not curtail the work - most likely, the polyurethane foam has not lost its basic operating and performance characteristics.

If the expiration date is significantly exceeded, it is strongly recommended not to use the sealant even for minor household repairs (especially for installing windows or doors). This is due to the fact that after the expiration date, the sealant begins to rapidly lose its basic properties, so when you open the package, anything can happen.

Terms of use of polyurethane foam after application

Leading sealant manufacturers claim that high-quality polyurethane foam, which has been applied to the surface in accordance with all the rules, is protected from ultraviolet exposure and moisture, and is capable of performing all its functions for 10-20 years.

If the applied substance is in negative operating conditions: outdoors, under direct sun rays, rain, snow, etc., then the service life of the sealant is reduced to 2-3 years (even in cases where moisture-resistant compounds were applied).

Conclusion

Professional and household polyurethane foam - both materials have a right to exist, because they usually have different areas and features of use. For small home repairs, household models with a tube for applying the substance are quite suitable, and for carrying out extensive work It is best to buy professional sealants and a gun. Construction and installation skills are not required to treat surfaces using polyurethane foam from a tube or a gun.

Polyurethane foam is one of the most popular materials on the market. We have made a selection of various tricks and life hacks that will make working with it easier and more comfortable, as well as find new areas of application for it.

The main components of polyurethane foam are polyol and diisocyanate, the reaction of which produces a prepolymer. For polyurethane foam to harden, moisture is required, which is usually taken from the surrounding air. According to certain calculations, it takes approximately 40 ml of water to harden the foam from a 750 ml cylinder. Based on this, we can draw the first conclusion that the presence of moisture (up to a certain threshold) promotes rapid hardening of the foam and prevents its further expansion. Therefore, it is recommended to pre-moisten the areas where the foam is applied with water. In addition, this will improve the adhesion of the foam to the applied surface.

Rodents have a long-standing love for polyurethane foam, which they easily turn into dust. But in this moment formulations began to appear on the market that rodents do not like.

Since the foam container must be held upside down when working, with an extension made of PVC pipe, you can easily handle even cracks in the ceiling or in any hard-to-reach places.

Acetone, as well as solvents based on it, can easily clean the surface of uncured foam. But with a frozen one, such a trick will no longer work.
The older the foam in the container, the higher its viscosity. Accordingly, its expansion coefficient and final volume decrease. To prevent the viscosity of the foam from growing so quickly over time, manufacturers make special additives, so it is recommended to shake the contents of the container thoroughly before starting work.
The gun will allow you to dose the foam more accurately, thereby giving you additional convenience and savings. It will also be convenient for large volumes of work. High-quality models can be left without washing for a month or more. In other cases, you should use a bottle with a special flushing liquid.
Some manufacturers offer black foam cylinders. It is also perfect for landscape works. For example, to fix stones on alpine slide. As long as it doesn't get direct sunlight.

If you need to apply foam in several layers to cover large openings, manufacturers recommend waiting an hour or two between laying each new layer. But if each layer is slightly moistened with a spray bottle, then the waiting hours can be reduced to 10-15 minutes.
In the absence of appropriate filler, polyurethane foam will also help when transporting fragile items. To do this, you need to line the box with cling film, fill it a third with foam, put a layer of film on which to place the fragile item. Then there is another layer of film on top, which is also covered with foam. As a result, your foam will be easily separated into two parts, which will simplify unpacking.

For foaming cracks in windows and doorways Foam with a minimum coefficient of expansion should be used, otherwise it may be difficult to open windows and doors. Typically, such foam is labeled as window foam. But if you don’t have one at hand, it’s better to apply the foam in two layers. First, a small amount of foam is placed deep into the crack, to which, after final expansion and hardening, another layer can be added if necessary.
In the absence of acetone, you can rinse the plastic nozzle tube using carburetor cleaner (it also contains acetone). You can purchase it at any auto parts store. But this must be done immediately after use, before the remaining foam has hardened.

Winter foam can be used at temperatures down to -10 C°, and individual species and up to -20 C°. But at the same time, the foam container itself must have a temperature of at least +5 C°. You can use hot water to quickly warm up the cylinder, but under no circumstances should you place it in an open fire or use other methods of rapid heating. Otherwise, the result may be sad.

You can get rid of spilled or splashed foam after it has hardened using special cleaning gels designed for foam. They soften it, after which the foam can be easily removed.
When working with foam, do not forget to wear gloves, otherwise the foam that gets on your skin will leave stains on it for a couple of days.

Polyurethane foam is a difficult material. Frequently asked question people who want to conduct their own construction works, – is it possible to use polyurethane foam if there is no gun. To do this you need to know its properties and basic rules of application.

In contact with

Polyurethane foam with a tube

First you need to determine what type will be used for repairs. In construction stores you can see two types of foam:

household;
professional.

In construction stores you can see two types of foam.

How to choose the right one the right composition? To treat a large area, the volume of the cylinder should be taken into account. The quality of household products can be worse compared to professional brands. Because of this, major repairs require professional foam repairs.

Here are the basic settings for how to use polyurethane foam with a tube:

Need first shake the can for 30 seconds, ensuring the mixing of the material inside it until homogeneous and thereby increasing the intensity of the output.
The cap is removed and fixed on the valve PVC tube. It is included in the kit if it is a household type sealant. For a professional cylinder, the tube will need to be purchased separately.
The free end is brought to the place where the sealant needs to be applied. The gap is filled by 30–50%. Compound increases in volume after application as it dries. Partial filling reduces consumption. At correct use The gap will eventually fill 100%.
If the foam dries and it becomes clear that there is not enough of it, you can apply another layer. But it is better to carry out sealing without a gun the first time, because the composition comes out in excess and is less amenable to precise dosing.
The material flows first into the tube and then into Right place after pressing the cylinder valve.

If the gun is not at hand, this does not mean that the work will have to be postponed. You can use foam without a gun in the following ways:

Premium material requires a tube, but when high blood pressure can come out a lot extra staff, increasing consumption and thereby costs. To avoid this effect, you can take two tubes with different diameters lumen. First put a tube on the cylinder larger diameter, then it is good to fix a tube of smaller diameter in it. This reduces pressure and helps save material.
Household polyurethane foam without a gun is already equipped with a special plastic tube.

If the gun is not at hand, this does not mean that the work will have to be postponed.

Rules for working with polyurethane foam

Working with foam is quite simple. The main thing is to follow the detailed instructions:

Wear gloves on your hands to prevent the sealant from getting on your skin, as it is difficult to remove.
The place where the sealant will be laid, first carefully freed from debris and dust. When the gap is of great depth and width, it is first filled with small pieces of foam.
Shake the container as recommended in the instructions, usually 30–60 seconds. Thanks to this, the composition becomes homogeneous and comes out better, which simplifies the work several times.
The planes inside the recess are wetted, but moderately; water should not flow along the walls.
The cap is removed from the cylinder, which limits its operation unnecessarily. A tube is put on the ledge, replacing the gun.
The free edge of the plastic tube is brought to the hole at a distance of 5 cm, now you should press the valve. The hole is filled halfway or a little less, since the volume increases as it dries.
After 30 minutes, you should carefully inspect the foaming area. If pits or empty cavities are visible, solution should be added.

Before foaming the gap, you need to make sure that the temperature environment complies with the recommendations in the instructions for the sealant. It is necessary to carry out work when the ambient temperature is within 5–20 degrees Celsius.

Before foaming the gap, you need to make sure that the ambient temperature complies with the recommendations in the instructions for the sealant.

Important! In heat above 30 degrees, work should be postponed, and in severe frost you can use a special

When applying, you need to constantly adjust the pressure so that it is uniform and the contents come out of the container in equal parts. If it gets on any surface, the composition is poorly cleaned, and there is a risk of damage to the coating. When applied to the desired areas, it must be given time to harden, only then cut off the excess. The composition contains toxic components, so the working the space must be thoroughly ventilated.

Complete hardening of the composition occurs after 8 hours. There is no need to worry if swelling has formed at the treatment site - they can be easily cut off with a stationery knife.

How to remove foam from floors or walls where it shouldn’t be? After hardening, this can be done using acetone. As a precaution, you should protect your eyes by wearing clear glasses. To protect your hands, gloves are suitable because the composition has excellent adhesion to the skin of the hands. Removing it will be painful and traumatic.

When applying, you need to constantly adjust the pressure so that it is uniform and the contents come out of the container in equal parts.

Reusing the cylinder

If you need to reuse the cylinder without a gun, for example, within a month, then you need to bend the tube, securing the bend with tape. Then press the valve to maintain pressure in the tube. So a container with polyurethane foam can be used for 2 months without any problems.

If the cylinder is needed again only after 5-6 months, there is another storage method. You can use acetone. The tube is carefully removed from the cylinder and washed with acetone. They are also dripped into the valve hole. Repeat the manipulations two or better three times. So the cylinder will last up to six months.

To work with a professional-type cylinder without a gun, you will first need to select a suitable plastic tube and figure out how to press the valve.

For this purpose, a DIY tube made of 3 parts is suitable:

the first is flexible;
the second is hard;
the third is flexible.

The first part presses on the valve, the second helps prevent splashing, and the third directs the foam stream to the desired location.

To work with a professional-type cylinder without a gun, you will first need to select a suitable plastic tube.

Prices for polyurethane foam with a tube

polyurethane foam with tube

Making a gun with your own hands

You can make a gun for polyurethane foam from a pneumatic spray gun and a faulty gun. They are combined and a well-functioning device is obtained. Here's a little instruction on how to make a foam gun:

The essence of connecting these structures is to replace the paint tank of the pneumatic spray gun. Instead, a bottle of sealant is screwed on. To do this, first attach the connector for the cylinder, removed from the broken foam gun.
But the threads of the connections do not match, so for fixation and reliable connection you should use epoxy, having previously cleaned both threads.
To ensure that the glue fills the threads and does not fall into the required holes, they are first plugged with hot glue. When the necessary holes are plugged, you can design further.
Epoxy glue is diluted according to the instructions: 10 parts of resin per part of the hardener. A regular 10 ml syringe is filled with 10 ml of heated resin, and then 1 ml of hardener. Mix everything thoroughly, heating as needed. First, the resulting glue is applied to the threads of the connector so that there are no empty spaces left.
The body of the spray gun is securely installed, and into it connector is glued in. All is ready.
The final step in how to make a foam gun is to heat the joint to a temperature so that the hot-melt adhesive that plugs the holes melts and flows out.

Important! The sealant is a flammable material and should not be exposed to fire.

Useful video: how to reuse a can of polyurethane foam with a straw

To quickly carry out repair work efficiently and at the lowest possible cost, sealant is used. But first it is important to calculate the approximate volume required material. For simple work Sometimes even one household cylinder is enough around the house - it is used with a tube that comes with the kit, which greatly simplifies operation and reduces work time. If the finishing is large-scale, it is recommended to purchase a professional composition. In any case, it is most convenient to use such a sealant with a gun, but if you don’t have one, then improvised structures will do.

Everyone knows that in modern world Polyurethane foam is used in almost all types of repair and construction work where its properties are required. This building material is used for installing doors, windows, window sills; sandwich panels and all kinds of insulation for pipelines are made from polyurethane foam; it is widely used for insulating large containers, such as water heating tanks, and so on. similar products. The main advantage of this building material is ease of use, which we will talk about on the pages of the site. In addition, we will also answer questions about how to use polyurethane foam, what types of foam are there and how to choose it correctly?

How to use polyurethane foam photo

How to use polyurethane foam: what to choose, professional or household material

To date modern industry produces three main types of polyurethane foam - professional and household cylinders. There is also the so-called two-component polyurethane foam, which we will not consider in this article for one simple reason - it is used exclusively for production purposes. What is the difference between professional and household polyurethane foam? Which one should you prefer?

The answer to this question lies in the plane of your activity. If, due to the specifics of your work, you are faced with its use every day, then you undoubtedly need to opt for the professional version of polyurethane sealant. Professional polyurethane foam has one significant advantage - thanks to the foam used for its use, the yield of foam from one cylinder is much greater. Thanks to the same tool, a can of professional polyurethane foam can be used for a long time, and it will not dry out. Unlike professional foam, household polyurethane foam is intended exclusively for one-time use - the remains of this material will certainly dry out in the container after just a day.

In addition, when identifying the differences between household and professional foam, you should also pay attention to the characteristics of this building material - the density of the foam in professional cylinders is much higher, and their filling is also greater. The only thing in which household polyurethane foam is superior to professional foam is cost, as well as the absence of the need to use a foam gun for work, which, by the way, is also not cheap.

Gun for mounting foam photo

Now about the quality. As a rule, construction foam sold today can be of different quality, which is quite difficult to assess by the type of cylinder. In principle, you can focus on price, or you can resort to the experience and observation of professionals. The fact is that all the qualities of polyurethane foam can be determined, as they say, offhand: by the weight of the container and how its contents behave when slightly shaken.

A high-quality foam container is heavier, and when shaken, its contents roll heavily from one end of the container to the other. You need to feel it - just take and compare two cylinders of the same volume, but different in price. Believe me, the difference will be noticeable immediately.

Construction foam: how to work with it

It is customary to write instructions point by point - this is how we will answer the question of how to use polyurethane foam correctly.

It doesn’t matter what kind of foam bottle you purchased (professional or household), the first thing you need to do is heat it up in hot water and shake well. This is necessary in order to mix the gas and liquid component of the foam, thus increasing the yield of foam from one cylinder.
Next, we screw the tube that comes with it onto the household cylinder, and install the professional one on the gun.

How to use polyurethane foam correctly photo

Now about the surface on which it is planned to apply polyurethane foam. Firstly, it must be cleaned of dust and dirt. Secondly, moisten thoroughly with water. The fact is that the polymerization process of polyurethane sealant is much better when high humidity. In addition, polyurethane foam adheres better to a surface moistened with water, which is by no means unimportant when blowing out large cracks - the foam does not fall out of them, as happens when working with dry surfaces.
At this step, we’ll talk directly about the process of applying polyurethane foam. There is nothing complicated here - the only thing you have to do is get used to measuring the amount of foam coming out of the container. In this regard, it is much easier to work with a professional foam cylinder and gun - the dosage of foam output is carried out by a special valve. In household cylinders, this process has to be regulated by pressing force on the cylinder valve. And one more nuance - during the foaming process, the cylinder must be kept with the valve down.

Polyurethane foam: instructions for use

After this, wait until the foam hardens. How long does it take for polyurethane foam to dry? As a rule, complete polymerization of this building material occurs within 6–8 hours. So, at least, the manufacturer claims, but in practice the situation is a little different - the hardening time of the foam depends on its volume and can reach up to 12 hours.
When the foam hardens, its excess is cut off with a sharp knife or metal file.
Polyurethane foam is a material sensitive to ultraviolet rays - it is destroyed under their influence, changes color and crumbles. If we're talking about about using polyurethane sealant outdoors, then after drying and removing excess, the foam must be covered with cement mortar.

How to remove polyurethane foam photo

As you can see, the question of how to use polyurethane foam has a fairly simple answer. If you do everything correctly and fully comply with the technology for applying polyurethane sealant, then with its help you can easily fill spaces of any size, including in the ceiling.

Polyurethane foam is one of the most difficult materials to remove: once it gets on fabric, leather or other surfaces, it is quite difficult to clean them. But it's worth a try.

Surface	Fresh foam	Cured foam
Skin of hands	Carefully remove with a sponge, the residues are removed with improvised means - scrub, acetone, solvent, gasoline, saturated saline solution	Can only be removed mechanically. Usually loses its properties and falls off after 2-3 days
Textile	Collect with a stick, residues are removed with a cleaner. Important! When processing the fabric, stains may remain!	Large pieces are cut off if possible, and the remains are treated with a special solvent for hardened foam, white spirit or gasoline. Appearing stains are removed with stain removers.
PVC (frames, window sills)	Carefully remove, wipe the surface with a special cleaner for PVC	Carefully cut off, the surface is wiped with a special cleaner for PVC (usually marked - for installing windows)
Flooring (linoleum, laminate, parquet)	Remove the foam with a spatula, and collect the remaining residue with a sponge moistened with cleaner. Spots may appear! WITH wooden surfaces They are removed by grinding, but varnished coatings cannot be cleaned - they will have to be replaced.	After cutting off the foam, the remains are carefully dissolved with a special cleaner or the drug “Dimexide” (sold in pharmacies). It is necessary to wear gloves when working with such substances - potent components can cause burns!

As you already know, polyurethane foam is not intended for sealing holes smaller than 1 cm in size - it is better to fill such cracks with silicone sealants.

Alexander Birzhin, rmnt.ru