6 best adhesives for styrofoam
Among the various types of insulation leading place is expanded polystyrene. It is a foamed polymeric material consisting of 98% air. It does not exert pressure on the structure and has a low thermal conductivity of 0.038 W / m * K. Styrofoam is used in liquid and solid form. In the second case, various adhesives are used to fix the plates to the walls and ceiling. Reliability of fastening of blocks, installation time, technical and weather conditions for installation depends on quality and type of binding. To facilitate the selection, we have prepared a ranking of the best foam polystyrene adhesives, based on product characteristics and user reviews.
Rating of the best adhesives for styrofoam
| Nomination | a place | Name of product | price |
| Rating of the best adhesives for styrofoam | 1 | Ceresit CT 83 Strong Fix | 509 ₽ |
| 2 | Tytan Styro 753 GUN | 457 ₽ | |
| 3 | Knauf klebenspachtel | 250 ₽ | |
| 4 | Miners Teploizol | 386 ₽ | |
| 5 | Ceresit Express CT 84 | 560 ₽ | |
| 6 | TechnoNIKOL Professional | 30 ₽ |
Ceresit CT 83 Strong Fix
Rating: 4.9
First place in the ranking is a product from the German concern Henkel. He manufactures building materials and mortars under the brand Ceresit. The adhesive is designed for extreme conditions and is characterized by high adhesion. In the reviews, users report that when checking the bearing capacity, the gap always occurs on the material. Preparing the glue in 5 minutes, by simple mixing with water. The solution allows steam to pass through, so moisture will not accumulate in the room. Extra traces of the mixture are easily removed with water. Plastering the surface is allowed three days after installation. The substance can be used to create firebreaks, since it is not subject to burning.
Our experts included glue in the rating, as the best for mounting thick plates of polystyrene foam from the outside of the facade of the house. It is allowed to work with the mixture even at an outdoor temperature of 0 degrees, only then it is necessary to use warm water (+30 degrees) for the preparation of glue. This substance will turn out to attach high quality sheets of expanded polystyrene, 200 mm thick and they will not be blown away by a strong wind.
Virtues
- ecologically safe composition;
- economical consumption;
- glue passes steam through itself (moisture will not linger in the room);
- glue preparation in 5 minutes.
disadvantages
- high price;
- Do not glue to paint coatings;
- it can only be fixed to concrete 3 months after pouring;
- You can cook the mixture well only with a mixer (400-800 revolutions per minute are needed).
Tytan Styro 753 GUN
Rating: 4.8
In the second place in the ranking is glue in the form of foam. It is produced in a balloon with a capacity of 750 g. To apply it, construction guns are used, where the balloon is inserted upside down. With this technology, the installation process of polystyrene foam is 5 times faster than when diluting the solution and using trowels and graters. But the height of the foam does not exceed 5 mm, therefore, when installing the foam polystyrene plates outside, where they will be exposed to wind and precipitation, fixing with additional dowels is required. But it can already be carried out 2 hours after gluing, which the masters like in reviews.
According to our experts, the product is worthy of a place in the ranking of the best for the economy of consumption.In contrast to the loose mixtures applied with a width of 50 mm around the perimeter of the sheet of expanded polystyrene, glue is sufficient in the form of a thin strip of 10-15 mm in width. Therefore, one balloon can fix polystyrene foam on an area of up to 8 m². It is also convenient to transport the sealant to the installation site due to the compact capacity.
Virtues
- does not require preparation - you just need to shake the bottle with your hand;
- easy and convenient drawing from the gun;
- high adhesion to metal, concrete, brick, plastic, wood;
- economical consumption and accelerated work.
disadvantages
- high price of the cylinder;
- additional doweling will be required for exterior finish;
- can only be used at positive temperatures.
Knauf klebenspachtel
Rating: 4.7
The third place in the ranking is occupied by goods from the German manufacturer. The adhesive mixture is produced in a dry form and diluted with water to the desired consistency. Glue is supplied in packs of 25 kg. It has high adhesion to hard and soft materials. It can be used simultaneously for fixing polystyrene foam and mineral wool (in places of protection against the transition of the flame). Suitable solution for indoor use or for facade finishing. Buyers in the reviews like that glue is suitable for any type of expanded polystyrene, both ordinary and extruded. In the solution itself, air pores make up 13-15%, therefore the composition is durable and eliminates falling away from the wall.
We added a product to the rating because of the possibility of machine application to the walls. For this purpose, pumps of the type G4 or Monojet are used. This greatly improves the performance on facades with a large area. Glue can be used to reinforce polystyrene foam, fixing on it a special mesh for plastering mortars. The thermal conductivity of the binder itself is only slightly above the foam and is 0.047 W / m * K.
Virtues
- machine application is allowed;
- suitable for reinforcement;
- large temperature range;
- grabs in 60 minutes;
- water holding capacity 95%.
disadvantages
- high consumption - 7-8 kg of dry mixture per m²;
- it is difficult to transport large bags to an object;
- low productivity with manual application.
Miners Teploizol
Rating: 4.6
The fourth place in the rating is given to Russian glue for expanded polystyrene, also produced as a dry mix. The package contains 25 kg of fine powder diluted with water in a ratio of 250-300 ml per 1 kg. If you want to knead a large amount at once, then 6-7 liters of water is enough per bag. Glue can be used to fix the foam of any thickness, as well as strengthening the surface for subsequent finishing. External use is permitted on facades. If the repair is not planned immediately, then in the original packaging, the goods can last up to 12 months.
Our experts have made the glue in the rating for reduced consumption, although this figure depends on the skill of the wizard to apply the composition to the expanded polystyrene plate. Having trained you can reach a figure of 3-4 kg per 1 m² (with a spatula teeth 1.0-1.2 cm), which is two times more economical than German brands. We also noted the viability of the solution for 3 hours. Thanks to this work on the walls can be done slowly and easily remove excess traces of glue with a wet rag.
Virtues
- universal in adhesion to the base;
- does not require pre-cleaning of the surface;
- 3-4 kg lower consumption;
- suitable for basic reinforcement.
disadvantages
- the price is almost the same as that of European products;
- 25 kg heavy bags are more difficult to transport to the site;
- full hardening in 3 days;
- Work can be carried out at +10 degrees and above.
Ceresit Express CT 84
Rating: 4.5
In the fifth place in the ranking is another German product from Ceresit, but now in the form of polyurethane foam. The substance consists of polyurethane and combustible gas, squeezing the material out. You can use the product with air humidity up to 90%. The adhesion index for concrete is 0.3 MPa. But in terms of consumption, the glue is inferior to other participants in the rating - one balloon will be enough to cover about 6 m² with polystyrene foam.Buyers note in the reviews the ease of use of the product - the glue is shaken for 30 seconds and screwed onto the gun. Drawing is carried out a cross on a cross on a plate, and also on the perimeter, a width of a strip of 5-10 mm. Within 20 minutes you can adjust the insulation. Excess traces are removed only with a solvent.
Our experts have marked the product in the ranking as the most resistant to low temperatures. Installation is allowed even at -10 degrees, which allows for facade insulation, even in winter. Under such extreme building conditions, rejection takes 7-10 hours. In summer, the glue sets in 2 hours.
Virtues
- as part of no freon;
- resistant to water;
- work can be carried out at high humidity;
- economical consumption;
- possibility of installation on a large area in one day.
disadvantages
- almost always on the facade requires strengthening of polystyrene foam dowels;
- badly sticks to painted surfaces;
- walls of foam blocks should be pre-primed (otherwise the building material will strongly absorb glue, and expanded polystyrene will disappear).
TechnoNIKOL Professional
Rating: 4.4
In the sixth place in the ranking is placed the domestic product in the form of a sealant in a cylinder. The adhesive consists of a single-component polyurethane foam and is suitable for all types of polystyrene foam. Installation is allowed to be carried out at a temperature from 0 to +30 degrees. Wizards in the reviews advise that after applying to the slab, you need to wait a minute for the foam to expand slightly, and then press the foam onto the wall with a long profile. After hardening, the adhesive is resistant to water and mold. The material has no aging effect. It is possible to correct the insulation for another 20 minutes after fixation in order to achieve minimum gaps between the plates and ensure the evenness of the blocks.
The product got to the rating at once for several reasons. First, the glue is much cheaper than its competitors, so the installation of polystyrene foam will not require significant investments. Secondly, one cylinder, with skillful use, will be enough for finishing 10 m², which saves money. Thirdly, foam adheres perfectly not only to concrete, masonry or chipboard, but even to ceramic tiles and glass mosaics. This frees up the dismantling of old finishes on a specific facade and simplifies the work.
Virtues
- slight expansion after application;
- simple installation process, understandable even for a beginner;
- high adhesion to various materials;
- curing in a day to achieve a density of 25 g / cm ³;
- can be used for outdoor and indoor use.
disadvantages
- operation only at positive temperature;
- in contact with silicone and polyethylene enters into a chemical reaction;
- for quick drying, the humidity should be within 50%;
- for work will have to buy a mounting gun.
Attention! This rating is subjective, is not advertising and does not serve as a guide to the purchase. Before buying, you should consult with a specialist.
