In practice, the question of cleaning natural stone from solution may arise in a timely manner, during and as a consequence. We will tell you about how to properly and how you can clean natural stone from the remains of cement-sand mortar in all possible situations. What is the difference between these situations? And what does it matter when to start removing the solution?
The difference between the situations is significant and time directly affects the choice of solution cleaning technology and costs. Let us begin to consider the timely situation, the most correct and advantageous situation. This is a situation when you have time to slowly study this issue and practice on something. In a situation where the process has already begun, there are simply no questions to think about, the solution is getting stronger every minute, and a simple technology for removing solution residues can turn into a complex technological process. So time plays a major role here.
For cleaning natural stone from mortar
in a simple and timely manner you need to follow the following steps. If you add up natural stone retaining wall, clad surfaces with natural stone, or create any product, it doesn’t matter, you need to know one thing, don’t rush to clean the surfaces and especially don’t try to pour water on it!!! If you don’t have experience and you start washing it, then there is an 80% guarantee that you will never remove it completely, and your product will reliably absorb the solution and change color. If you made such a mistake and started wet cleaning, then you will have to finish it using the wet method, changing the water regularly, and you need to add dishwashing detergent to the water, you can add a little solution to remove cement residues. In any case, you will not envy you, there is a lot of dirt, water, and those who are not experienced can still wash the seams. Speaking of seams, we recommend immediately filling all the free spaces and forming the necessary seams, this will preserve the proper quality of your masonry. All masonry where the seams were rubbed later, the chances of the durability of the masonry are less and less, depending on how long the masonry stood with empty seams. Proper wet cleaning, if you started with this, is done only with a flat molar brush, a damp sponge and a slightly damp stiff clothes brush. 
Under no circumstances should drips be allowed; any drips mean the solution moves from one place to another, which only prolongs your work time. To ensure that your solution does not rub even further into the surface of the stone and is not absorbed properly, movements with a brush and sponge also play an important role. The movements of the brush should be similar to working with a vacuum cleaner, short distances, 5-10 cm, you move only in one direction, forward, pushing the bristles forward, and, as if running into a dirty place. After one movement, the brush must be rinsed in water and shake off the water well; the water should not flow from the brush. When moving the brush forward, you can add a slight rocking motion from side to side so that the bristles play and pass into the crevices and pores of the stone. The situation is similar with a sponge, it should be wet, short movements, similar to collecting water with light wiping, while the sides of the sponge need to be changed after each movement. All this is done so that the solution is not smeared, but collected.
There is one more trick that becomes clear only with experience. The fact is that a small layer of mortar on the stone, the so-called film, is barely noticeable with water and many do not notice it; after drying, cleaning up the remaining cement automatically becomes part of the fight against the consequences. Where special equipment and skills are already required. But more on that later.
So, where to start if you decide to approach this issue in a timely manner?
Stage one. After you have filled the seams with the solution, preferably not spreading it too much on the surfaces that will have to be washed, you need to wait a while until all the moisture from the solution has evaporated. The solution will become light in color; without waiting for complete drying, you can allow for minor wet spots. The ambient temperature does not matter here; the hotter it is, the faster it dries; the cooler it is, which means it takes longer for the water to evaporate from the solution. At this moment, when the moisture has just evaporated, the solution has the lowest strength, is not able to stain the surface, and the cleaning process takes less effort. It is necessary, initially, to remove all large remnants of the solution with a spatula. Then, using a stiff clothes brush, remove any remaining solution that may be in recesses that are inaccessible to the spatula. You will notice that only a trace of the past presence of the solution on the surface remains, but this is not the end, this is only 50% of success. Next, no less important stage, is wet cleaning, but this cleaning, unlike the one we described earlier, will go much faster and the result will definitely please you. At this stage, areas of hardened mortar that were not removed with a stiff clothes brush are also removed. Water will soften the solution again, and repeated work with a stiff clothes brush will finally remove all remnants of the solution. It is allowed to use a manual metal brush for metal processing. 
When paired with a soap solution, no traces of a soft metal brush remain. Let us repeat that wet cleaning does not imply abundant watering; all movements occur only with wet tools. To consolidate the cleaning result, after 2-3 hours, if the work is carried out above 150 C, it is better to clean again, but with plenty of watering with clean water and soap solution. The fact is that during this time the solution acquires sufficient strength to withstand dousing with water. Please do not confuse this with the operation of a high pressure washer! A soap solution is applied to suspicious areas and repeated movements are made with a soft metal brush. Then, by pouring fresh water, wash off all the soap solution and stay in fresh water, this can be done using a garden hose, applying minimal water pressure, and this will be enough. If you followed our recommendations, the surface of your stone will regain its original appearance!
Well, what to do with the defect, with that solution that they forgot about, didn’t know about, it turned out that way, it didn’t work out at all, they missed it, etc.?
There is a way out! This method is time-consuming and labor-intensive, but can also please you with the results, for example, you can see new shades of stone that have been hidden for a long time under the surface film. We are talking about sandblasting stone. Few people know about sandblasting either, and many try to clean it with hard brushes for metal, but as a result they get scratches and changes in texture. They still don’t know about the sandblasting machine because of the cost of the equipment; only recently have affordable samples of equipment and options for separate assembly of such equipment appeared on the market. For us, this issue was resolved when we purchased separately a two-piston compressor with decent performance, a hose and a gun for a sandblaster.
To operate the device, you can use ordinary river sand; it, of course, is several times less effective than abrasive chips, but your situation will be solved.
There is another way to remove mortar from the surface of natural stone using acids. But we recommend using ready-made solutions that are commercially available; they are already of the required concentration and are the safest for human work.
In conclusion, as recommendations, we can say the following. You always need to look at the material you are going to work with; sometimes sandblasting will also be useful. In rare cases, but they exist, you can leave the front surface of the stone not washed before laying, but only wash the surface for laying. An almost 100% guarantee of maintaining cleanliness can be provided by some kind of varnish previously applied to the front side, but polyurethane is better; other varnishes do not last long.
Well, if you are completely confused and don’t know what to do, then know that there are no hopeless situations! Contact us and we will definitely help you!
New residents end up paying for the construction workers’ careless work.
When starting cleaning, you need to understand whether the surface on which the cement remains is hard and strong, or whether mechanical stress can lead to chips and cracks.
When conducting construction work, foremen always think about the delivery of the object, ordinary workers often think about what can be stolen from the site, and masons think about the weather. Being outside all day, exhausted by the heat in summer, rain in autumn and snow in winter, you inevitably begin to monitor the weather forecast. Often you have to rush, and it’s not always possible to do everything carefully. So the cement blots remain. Washing off cement later causes headaches for building owners.
There are two ways to cope with the task of washing off cement.
To do this you may need the following tools:
- metal brush;
- spatula;
- chisel;
- geological hammer;
- trowel;
- an ordinary hammer and chisel;
- grinder or whetstone;
- axe;
- liquid for removing cement.
Mechanical removal
First, cement is removed mechanically. Growths and stains are removed by regular knocking. Use a spatula, trowel, wire brush or hammer and chisel. A hammer and chisel are used to knock down large pieces of dried mixture. Sometimes it is better to use a chisel. It is convenient due to the uneven sharpening of the sides and the small angle. But do not forget that the chisel is not intended for such work and removing the hardened cement solution will quickly dull it.
It is good to remove cement from glass and ceramics with a kitchen scraper.
People who advise using a nail or chisel are a little wrong when they say that these tools are best solution problems. The conical working part removes the cement in a narrow path, resulting in a countless number of depressions, dashes and chips on the surface. Such tools are very suitable for removing excess cement from joints.
It is possible to remove old cement from glass using a scraper designed for cleaning kitchen stoves. You can find such a scraper in every hardware store. A brush for cleaning windows is also suitable. The main thing before starting work is to wet the glass generously with water. The cement is then scraped and washed with a brush. In extreme cases, you can use a razor blade. Cleaning should be done not with the corner of the blade, but with the entire plane. In this case there will be no scratches.
If dried cement needs to be removed from a brick for reuse, then there is no better solution than a geological hammer.
If hardened cement needs to be removed from a brick that is not in the masonry, that is, used, for secondary use, then you will not find anything better than a geological hammer. It looks like a small pickaxe, but both working parts are not sharpened. If such a tool is not available, a simple hammer and ax will do.
Before starting work, be sure to thoroughly moisten any surface. The water should soften the cement mixture, which will then aid in removal. It is necessary to moisten the brick until it no longer accepts moisture.
Impacts should be applied along the plane (sliding), this minimizes the possibility of damage to the surface. You can clean the surface of cement using a sharpening stone or grinder. The grinder requires careful and precise work, otherwise the surface will have deep cuts. It is most often used when removing large “blunders”. It is better not to completely clean off the cement with it; the residue is moistened with water and scraped off with a metal brush.
The work of a sharpening stone is more accurate compared to a grinder, but it takes more time.
Solvent preparation
In the second option, cleaning is carried out using chemicals based on hydrochloric, phosphoric or sulfuric acids. Acid and water penetrate into the solution and destroy it.
But there are some nuances, for example, white silicate brick does not tolerate acid treatment at all, it simply begins to collapse. This does not happen with ceramic bricks.
Acid-based removers (phosphoric or hydrochloric) will quickly deal with old cement splashes.
If you haven’t forgotten the theoretical course in school chemistry and you have sulfuric acid in stock, and for ordinary people- the electrolyte that is used to refill the battery in a car, you can make the solvent yourself. The acid should be at a concentration of approximately 10-15%. If the concentration is higher, corrosion of the surface under the cement may occur; if lower, the level of effectiveness will decrease significantly.
The area to be cleaned must be coated with the prepared solvent and wait about half an hour. During this period of time, the area will be completely saturated. After this, the dried cement is removed manually using the same tools: a metal brush, spatula, trowel, hammer, etc. Then the surface must be thoroughly washed with water; sulfuric acid loses its properties in it and disintegrates.
In specialized stores you can always find products that are designed to clean concrete surfaces from cement.
If you intend to purchase a product for cleaning old cement, then take your time when choosing. Most solvents contain the above-mentioned acids, but there are also less harmful samples. Before buying a product, consult a specialist or a store salesperson. The range of chemicals offered is very large, and some of them, in contact with tiles, metal, wood, plastic and other materials, can damage their surface. WITH special attention read the instructions. Operating conditions can vary greatly from a smooth and completely dry surface to heavy soaking with water. The advantage of chemicals is lower costs physical strength, but you still have to work hard.
Cleaning bricks from cement
Another problem with brick is salt deposits. white, which occurs due to the removal of salts present in the brick and mortar. Plaque is formed due to the abundance of precipitation (often appears in the spring) and violation of waterproofing standards during construction. In addition to disrupting the aesthetics of the appearance, plaque also has a negative impact on the brick itself. Its main component is sodium sulfate. It, in reaction with water, can increase in volume by 1000%, destroying the outer layer, which, falling off, opens a new portion of sulfate that comes into contact with water. Everyone has probably seen such crumbling brick walls at some point.
Cleaners are applied to the wall surface using a brush, brush, roller or spray and left for some time.
Facade cleaners consist of an aqueous solution of acid salts, antiseptics and various additional components. When applied, solvent substances interact with salts and dissolve them. Step by step instructions and directions for use are usually indicated on the label.
To wash off plaque, it is necessary to carry out work in the following order:
- the concentrated cleaner is diluted with water to a concentration of 5-15% (depending on the level of surface contamination);
- The resulting solution covers the wall. We carry out this work with a brush or roller;
- leave the surface for some time (3-20 minutes). We wait until the solvent interacts with the salts;
- the solution must be thoroughly rinsed with water. The brickwork is wiped with a medium-hard polymer brush.
The components used in facade cleaners are harmful to health, so it is necessary to use personal protective equipment when working with them. If there are small children in the family, then, with some effort, you can find solvents without an acid component. They are safer, but less effective and require several surface treatments.
Consolidation of results
After all excess solution and white salt stains have been removed, the surface must be secured. Otherwise it's closer to summer appearance at home it might go bad again. It is necessary to interrupt the contact of the walls with water. To do this, you will need a water repellent - a product for coating artificial and natural surfaces (concrete, brick, marble, foam concrete, granite, stone, plaster, etc.).
The water-repellent coating has excellent vapor-permeable and water-repellent properties. As a result, the surface stops absorbing moisture. The manufacturers of this coating claim that it is completely harmless.
Natural stone is porous in nature, so maintaining it is a little different than traditional ceramic tile. If your apartment has natural stone, then this article will be useful for you. As a rule, there are many cleaning products available in stores designed for different degrees of contamination and damage to the stone. Cleaning products can seriously stain the surface of the stone, damaging it and making it dull. Cleaners intended for cleaning stone should never contain acid or bleach. If you want to clean natural stone using only your home arsenal, then make a light solution of vinegar and water; with their help you can do minimal etching of the material. In general, when cleaning stone, it is recommended to use cleaners with a neutral base. Before using various solutions, you need to vacuum the surface and wipe off the dust, because if your feet and dirt come into contact, you can scratch the surface of the stone. To clean natural stone such as limestone, marble or granite, it is recommended to use premium penetrating sealers that work especially well on polished and honed types of surfaces. Varieties of sealants that are designed to penetrate deeply and impregnate the surface work well for both internal and external use. There are varieties of sealants that can improve a dark surface, enrich and highlight the natural color and beauty of a given material. I recommend that you always check the surface of the stone for the presence of tarnished parts in order to take advantage of the situation in time and eliminate this problem with the help of a sealant. Some of the grout, when exposed to the corners of the tiles, can also darken the edges of the tiles, so clean the stone immediately. When choosing a sealant, read the reviews, look at the ratings of each, so as not to make a mistake and buy the truly best representative of this genre.
Stone Cleaners
To clean the surface of the stone, use only detergents that are intended for this purpose. These substances must be acid-free and must be pH neutral cleaners that will not damage the surface even if it has a light coating of wax. Before cleaning, the surface of the stone must be moistened with clean water. The water will keep the cleaning solution on the surface of the stone and distribute it over the entire area, thereby making cleaning more effective. Dilute the solution using the manufacturer's instructions and apply it to the stone surface using a special sponge or mop.
If you need to apply the solution to a wall, kitchen counters, or tabletops, you can use a regular bottle spray. The solution must be spread over the surface using a sponge, synthetic mop, brush, or using a special floor drying machine. After this, you need to apply the solution. After cleaning the stone, you can use a special spray. This way you can highlight the shine and beauty of the polished stone. We recommend spraying a full area of the surface to clean the entire surface. The frequency of cleaning is difficult to predict; do this work on a whim, when you already see that the stone needs cleaning. In general, many cleaners cannot recreate the original shine of the stone, but they can be used to maintain the original shine and cleanliness.
Now the ceramic tiles are being cleaned!
How to work with a particularly dirty surface
To effectively remove stubborn dirt, grease, and other deposits on the surface of stone, you will need heavy-duty, safe, environmentally friendly stone cleaners. I recommend that you apply a solution of cleaner and water mixed according to the manufacturer's instructions.
Cleaning the surface of natural stone can be done in two ways:
Using a sponge, synthetic mop and soft bristles;
Alternatively, a machine operating in semi-wet mode can be used;
Using these technologies, you can remove stains and smoke from the grout, as well as from the surface of the stone.
Let's summarize
If your marble finish has started to lose color, is slightly scratched and needs etching, you can restore the shine by using special marble cleaning products. The process is usually re-crystallization, which returns the stone to its original shine and shine.
I hope you understand how to clean natural stones! And it is best to lay tiles using special tools called tiles. Using them, you will get the job done very quickly, and most importantly, efficiently!
What should you do if a huge scandal suddenly breaks out at work? Immediately remove negativity from yourself and your jewelry!
Everyone knows that stones, and especially crystals, have one important feature– accumulate energy and information. This property requires periodic cleaning of all natural stones and jewelry.
New stones must also be cleaned. Moreover, it does not matter at all how the gem came to you - whether you bought it in an esoteric store, ordered it online, or whether it was given to you as a gift. Any stone requires cleaning before you start using it and, of course, with frequent use.
The best cleaner from negative information is water. It is enough to hold the stone for a short time under running (or better yet, spring) water, and its energy structure will be completely freed from negative and previous information. This is one of the simplest and most versatile methods that easily copes with the cleaning task.
What else is used to energetically cleanse stones?
To energetically cleanse stones, use:
- fire
- salt (sea or regular)
- Druze (rock crystal or amethyst)
- herbs and flowers
- moonlight
- sunlight.
Salt
Cleansing natural stones sea salt can be considered traditional and one of the most the best ways cleaning the stone, since sea salt simultaneously cleanses both household pollution and accumulated negative information. Sea salt, which naturally evaporates in the sun, is simply an invaluable storehouse of useful and, most importantly, “living” active minerals, which certainly interact with the stone, cleansing its energy structure and taking on all the negative energy.
In this case, you can choose both dry and wet salt cleaning methods.
Wet cleaning
Dissolve a teaspoon of sea salt in a glass or ceramic cup of water. Plastic and metal dishes are not suitable, since these materials transfer some of their properties to water. To make the salt dissolve better and faster, fill it with warm water. But the stone can be lowered into the solution only after it has cooled! Most natural minerals do not tolerate high temperatures very well: they can crack or change color. The stone must be immersed in the solution overnight. In the morning it should be rinsed under running water.
Dry cleaning
For dry cleaning, you will need a deep container because you will need to pour enough sea salt into it to completely cover your stone. Any utensil can be used. Dry cleaning of the stone using dry sea salt is also carried out overnight.
Attention! High-quality polished jewelry stones may fade when exposed to sea salt, and some may change color. But don’t rush to give up this type of cleaning.
An alternative way to cleanse stones using sea salt: Place the stone in glassware and place it on a dish with sea salt (salt layer - at least 1 cm). Despite the fact that the stone will not actually come into contact with sea salt, it will still certainly have a cleansing effect on it.
Which stones should not be cleaned with salt water?
Here is an incomplete list of them: amber, malachite, onyx, opal, pyrite, aquamarine, turquoise, hematite, labradorite, calcite, cacholong, lapis lazuli, rhodonite, rhodochrosite, carnelian, fluorite.
Salt water has a negative effect on them physical properties. If your stone is not on the list, but you have doubts and are worried about the consequences of contact of the mineral with salt water, use dry “non-contact” cleaning using sea salt.
Fire
The most suitable time for carrying out procedures for cleaning stones with fire is when the Sun enters Aries (1st ten days of March - from 21st to 30th March). According to astrologers, all stones and jewelry passed down by inheritance need to be cleansed with fire.
Place the stone on the table, take a lit candle in your right hand and make circular movements clockwise (if a male stone, Yang energy) or counterclockwise (if a female stone, Yin energy).
During the procedure, you can mentally say “cleansing” words: “ Burn in fire everything that harms me.".
After purification by fire, it is recommended to leave some minerals in direct sunlight for several hours. Almost all stones benefit from sunbathing, especially those that are often worn. For some stones (coral, turquoise, pearls, opal, amber), solar treatments should be limited in time: no more than 30 minutes per session.
Moonlight
The moon is most directly related to the magic of stones, since it celestial body has the most direct physical effect on all living things on Earth.
And moonlight has a fantastic effect on natural minerals.
The procedure for removing negativity from a stone using moonlight will take you longer than all the others. Here it is necessary to take into account the phases of the moon. It is necessary to carry out the cleaning procedure only on the waning Moon, since as the Moon wanes, it will take away all the negativity with it. In addition, a lot depends on the weather - the sky is not always clear. Therefore, sometimes you have to wait a long time for the right night to clear your stone. On top of that, you will have to find a window sill or a place that will be flooded with moonlight for the maximum amount of time throughout the night.
To completely remove all negative energy from a mineral, it will take three full lunar nights. If you can leave the stone or decoration outside, this is certainly an ideal cleaning option. The glass on the windows, however, slightly blocks the light of the “queen of the night sky.”
If the stone has been subjected to a very strong negative influence and is not afraid of water, it is necessary to lower it into a vessel with salt water and leave it for several nights on the waning Moon.
Herbs and flowers
This is a very beautiful and delicate way to cleanse natural minerals from negative energy. Immerse your stone or jewelry for the day in a container with dried or fresh herbs or fresh flower petals. To enhance the cleansing effect, it is recommended to combine this cleaning procedure with moonlight cleansing.
Fumigation is very effective way cleaning stones from negativity. To do this, you need to set fire to some medicinal herbs in a fireproof container. Sage, cedar or juniper are ideal. The stone must be carried several times through streams of smoke. Thick clouds of smoke are not needed for this; a weak, thin smoke will do. To calm the energy of the mineral, add a few lavender flowers.
Remember that cleaned stones should not be given into the wrong hands, even those closest to you. Human energy is too complex and subtle. Therefore, do not take risks, protect your stones.
But what to do if you were asked to show or try on a stone or jewelry by loved ones? In many cases, it is inconvenient to refuse such a request, so as not to offend loved one. Then place the stone first on the table so that it is taken not from your hands, but from the table. You need to take your stone back in exactly the same way - only from the table, and not through your hands. This will prevent the transmission of other people's vibrations into your biofield. If such a manipulation was not possible, and the jewelry was nevertheless transferred “from hand to hand,” simply carry out an additional cleaning session.
Druze
It is very easy to remove negativity from stones and jewelry using druzes.
A druse is a set of fused crystals. This form is the strongest emitter and transformer of energy. Druse has only the most positive effects on the environment and is excellent for cleaning stones and the human aura.
Stones or your favorite jewelry that you wear every day, and on which a lot of negative information accumulates, are placed on a rock crystal or amethyst friend at night. In the morning the minerals will be crystal clear! Amethyst and crystal druses are ideal for cleansing procedures; it is not for nothing that magicians and lithotherapists call them “amethyst brush” and “crystal brush”. Stones and jewelry are very well cleansed from negative information with the help of druzes during meditation.
As soon as you get your hands on a new stone, you need to clean it immediately, on the same day! One of the best ways is to leave the stone to bask in the sun for 2 hours. As already mentioned, an excellent way to remove negative information from a mineral is running water. If there is a river or stream flowing near your house, place a stone in it for a while. Streams of water will carry all the negativity far and irrevocably. In a couple of hours, your mineral will be pristine in terms of energy. It is not recommended to clean new stones in salt water, as this can lead to premature wear.
Crystals that are contraindicated for contact with water
As you know, turquoise does not like water. You can wipe and wash it, but such contact must be kept to a minimum. Perfect care for turquoise - wipe with a dry soft cloth after each use.
It is necessary to exclude contact with water of such minerals as: chrysocolla, astrophyllite, heulandite, gypsum, kyanite, muscavite (a type of mica), selenite, seraphinite (clinochlore), stilbite, uvarovite, celestite, chermigit (geyserite), fuchside slate.
These minerals dissolve under the influence of water, and even with slight contact with liquid they begin to lose their physical properties. It is best to remove negative information from such natural materials using candles or any other dry methods.
How often do you need to remove negative energy from a stone?
This depends on the intensity of its use and on the energy load that the mineral carries. For example, if you wear your favorite ring and ring with a large mineral every day to the office, where you are surrounded by many ill-wishers, then the jewelry simply needs to be cleaned as often as possible, every weekend! And if a serious conflict occurs that knocks you out of your psychological balance, the stone needs to be cleaned immediately! And after the cleaning procedure, it is necessary to leave it to “charge” for a long time, until the entire negative matrix leaves its information grid. After conflict situations, deep meditation with natural stones will be a great way to relieve stress and cleanse your own aura of negativity. You need to meditate with minerals that are used only in spiritual practices and practically do not carry information from society.
Find out more: How to choose stones for meditation.
If you often change your jewelry and do not overload it with negative energy, then you can clean it once a month or less. Sensitive people, who have the ability to enter into full energy exchange with natural minerals, determine the need to clean the stone intuitively, according to their feelings. If you feel that your favorite pebble has lost its energy, then it’s time to “remove” unnecessary information from it.
Natural stone is a strong, durable and aesthetic material that is widely used in construction for cladding walls, floors, countertops, fireplaces and window sills. But keep in mind that such a natural and natural material It can be quite sensitive to substances with an active formula, which is Tenax glue. They are usually used to fix decorative elements on a particular surface. If used carelessly and excessively, they can leave unsightly marks on the stone. greasy spots, which are almost impossible to remove with a regular cloth and water.
Popular and effective methods
To remove various types of contaminants from the surface of natural stone, hot water is often used, and its hardness does not matter much. However, this method may not be very effective in the case of glue stains. However, it is practical, gentle and affordable. You can order high-quality glue for granite and marble in our store.
Natural stone surfaces are often cleaned using products with pH<7. К ним относятся органические кислоты (уксусная, муравьиная, лимонная), соляная, фосфорная и некоторые другие. Такие средства могут без особых проблем удалить неорганические загрязнения. Чтобы очистить поверхность натурального камня, вам нужно несколько раз обильно увлажнить нужную область разбавленной кислотой. Далее смойте обработанную зону обычной водой.
But this method has a significant drawback - thus, you can damage the surface of the material, which will ruin its appearance. The fact is that acid can remove the crust of contamination, but at the same time it will penetrate into the boundary layer between the material and the dried glue. This leads to partial destruction of the surface layer. In addition, if the material contains iron compounds, then yellow-brown stains will appear on the surface of the stone. In general, this method is not suitable for cleaning limestone and marble.
You can try to remove traces of glue from natural stone using a solvent. All you need is to rub the defective area with the composition several times. But keep in mind that you are unlikely to get rid of impurities completely. After such chemical treatment, some traces may remain.
The easiest way, perhaps, is mechanical cleaning of the surface of the stone. You can use any suitable device with which you can remove the remaining glue, but this will inevitably involve partial removal of the top layer of the material itself. Therefore, this method is best used when cleaning natural stones, the aesthetics of which will not be affected after mechanical processing.
You can try to remove traces of glue from the stone with ordinary pastes. Give preference to material made on the basis of phosphoric acid. It must be applied with a spatula or roller. Leave the product for a period of 5-10 minutes to 2-3 days. Additionally, rub it in with a brush so that it dries completely. Finally, carefully remove using a spatula. But some chemicals may remain in the material.
In our store you can purchase a highly concentrated, alkaline, water-based detergent for removing epoxy resin residue (epoxy residue).
