MASTERTOP BC 372 | Epoxy self-leveling floors
Epoxy high build coating for industrial concrete floors
Epoxy garage floors
Epoxy floors for food production
Epoxy resin flooring for warehouse
Master Top BC 372 | Two-component, self-levelling, colored, epoxy, free of volatile solvents, for industrial resin coatings.
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Product description MasterTop BC 372 solvent-free 2-component epoxy coating;
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Meets the AGBB standard for extremely low volatile emissions;
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Designed for use in MasterTop epoxy flooring systems, as the main layer of the system;
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It has low viscosity and spreads well;
- Complies with EN 13813.
Epoxy floors for warehouse
Areas of use
- It can be used for premises with medium and high levels of loads, for example: production, warehouses, laboratories, pharmaceutical enterprises, retail premises (shops, supermarkets), aircraft hangars, exhibition centers, parking lots, etc.
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Applied indoors;
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For predominantly dry operating conditions;
- It is used as the main coating layer in MasterTop 1273, 1273E, 1273R epoxy floor coating systems;
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If necessary, it is allowed to use the material as a repair composition in a mixture with calcined quartz sand;
- The binder/quartz sand ratio and sand fraction must be selected based on the types of defects to be repaired.
Epoxy garage floors
Features and Benefits
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MasterTop BC 372 has high strength, resistance to abrasion and many chemicals, which makes it possible to use it indoors with moderate and significant operating loads;
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Due to the low viscosity, the composition spreads well (levels), providing an excellent even surface of the coating;
- The material does not contain volatile substances (corresponds to AgBB) and has a specially developed hardener, so there are no internal stresses in the coating after polymerization;
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If necessary, the material can be used as a repair compound;
- Does not have an unpleasant odor when applied;
- It has fairly good chemical resistance.
Application procedure
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Substrate requirements MasterTop ВС 372 is used on all types of mineral substrates;
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The most common types are new or old concrete bases, self- levelling cement masses, cement-sand screeds (DSP);
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The maximum allowable slope of the base when using MasterTop ВС 372 as a bulk layer is not more than 1%;
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Application of this material without MasterTop primer is not acceptable;
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Please check with your local BASF representative for material compatibility and system options;
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Works on the installation of a polymer coating using MasterTop ВС 372 on traditional concrete and DSP must be carried out, guided by the technology of the selected MasterTop coating system;
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Substrate requirements are set out in more detail in the technical descriptions for the primers used in conjunction with this material and are mandatory for information when planning MasterTop floor coverings.
Poured epoxy floors
Applications
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Epoxy floors for a warehouse.
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Epoxy floors for food production.
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Polymer floors for the store.
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Epoxy floors for the home.
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Epoxy floors for parking.
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Epoxy floors for cafes, bars, restaurants.
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Dedusting of industrial concrete floors.
- Epoxy polymer floors for car service.
Specifications
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Coating appearance |
Glossy painted (according to the table, RAL) surface. Under the influence of UV and chemicals, discoloration may occur. |
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Density |
1.6 kg/cm3
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Viscosity |
1850 mPa*s
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Shore hardness (7 days) |
81
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Compressive strength |
79 MPa
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Abrasion resistance then Taberu |
28 mg
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Base temperature |
+10°С +30°С
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Maximum air humidity |
75%
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Coating time (minutes) |
30 minutes
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Reapplication interval, readiness for foot traffic |
Min-max, hours 10 h - 48 h
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Foundation preparation
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The most optimal method of preparing the base is selected depending on its condition, design, existing defects, expected operational impacts and the selected polymer coating system;
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It must be remembered that the mechanical preparation of the base is used not only to remove contaminants and open pores, but also to increase the adhesion of the polymer coating;
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The more textured the surface is obtained as a result of processing, the higher the adhesion of the coating, therefore, the higher its resistance to dynamic loads and the longer the service life;
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Before applying the base layer of MasterTop BC 372, a properly primed base surface should look like wet concrete without dry or dull spots, have a clearly visible polymer membraine;
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The primed surface should not be sticky or have a greasy coating, there should not be puddles or thick layers of material on the surface, as well as visually visible pores;
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On the primed surface, the presence of contaminants is unacceptable, such as: traces of fuels and lubricants, various oils, fats, various finishing materials, dust, etc.;
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The last layer of primer, if it is provided for by the pavement design, should be sprinkled with calcined quartz sand (the consumption and fraction of sand is determined by the pavement design);
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In the process of installing a polymer coating, it is necessary to carefully observe the interlayer intervals between layers;
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The maximum and minimum intercoat intervals between MasterTop BC 372 and primer coats are given in the data sheets for the respective primer materials.
Applying Epoxy Resin Coatings
Application conditions
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The temperature of the base during the application of the material should be from +10°C to +30°C (it must be remembered that sometimes the temperature of the base can be lower than the air temperature by 3-4°C;
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It is highly undesirable within the same working area to have areas with a large difference in base temperature (some factors can lead to this phenomenon, for example, sunlight, various equipment in the room, temperature processes in adjacent rooms, etc.);
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The base temperature is most easily measured with a pyrometer (non-contact infrared thermometer);
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The temperature of the base must be 3ºС above the "dew point";
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"Dew point" is the air temperature at which condensation forms in the room;
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It depends on the air humidity in the room and is determined according to the calculation table (see the appendix "Table for calculating the dew point");
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The air temperature at the construction site should be from +10°С to +30°С;
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The presence of drafts is highly undesirable - this can lead to surface defects: bubbles, ripples, shagreen, sticky areas;
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Humidity at the facility should be no more than 75%;
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Air humidity, air temperature and "dew point" are most conveniently measured using a thermohygrometer;
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The temperature of the material components should be around +20°C;
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At a high temperature on the object, it is desirable to have a material temperature of about +15°C, and at a low temperature on the object, on the contrary, it is desirable to have a material temperature of about +25°C;
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The chemical reaction between components "A" and "B" is exothermic, i.e. occurs with the release of heat, which reduces the lifetime of the composition, so the volume of the mixed material must be linked to the number of stackers, the speed and method of application, and the temperature at the facility;
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It must be remembered that the temperature of the material and base, humidity and air temperature directly affect such material properties as viscosity (fluidity), pot life, polymerization time, surface appearance and the presence / absence of various defects.
Material preparation and application
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The material has two components ("A" and "B"), which are in a carefully selected ratio;
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If it is necessary to partially use the packaging, the ratio of components should be strictly observed;
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If this rule is not observed, MasterTop BC 372 may cause a greasy film on the surface, residual stickiness or loss of the physical and mechanical properties of the layer;
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To prepare the composition, it is necessary to open the container with component “A”, thoroughly mix it in its original packaging using a low-speed mixer with a screw attachment (300–400 rpm), open the container with component “B”, completely pour it into a container with component "A" and mix for 2 - 3 minutes, then pour into a clean container and mix again for 1 - 2 minutes until a homogeneous mixture is formed;
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Pay special attention to thorough mixing of the material in the area of the bottom and walls of the bucket in order to avoid coating defects (poorly mixed components do not fully enter into a chemical reaction). When mixing the components, the mixer nozzle should not rise much above the level of the material, so as not to involve excess air in the composition (this can complicate rolling with a spiked roller);
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The chemical reaction between components "A" and "B" is exothermic (occurs with the release of heat, which reduces the life of the composition), so the volume of the mixed material must be linked to the number of stackers, the speed and method of application, the temperature at the object;
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Each minute of the presence of a mixed set of material (“A” + “B”) in a large volume (in a bucket) reduces the lifetime and, consequently, the processing time of the material;
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After preparation, MasterTop BC 372 is poured onto the primed substrate as soon as possible and distributed, depending on the coating design, using a notched trowel with a triangular tooth (filling layer) or a flat metal trowel (filling layer);
- Tooth No. 25 is recommended for application up to 2.5 kg/m2 and No. 48 for application up to 4 kg/m2 (numbers are given in the PPW catalog);
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The consumption of the composition, and, consequently, the thickness of the coating, also depends on the angle of inclination of the notched trowel and the number of movements during the distribution of the material;
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10 - 15 minutes after the distribution of a set of material, it is necessary to process the laid bulk layer with a spiked (deaeration) roller to remove air bubbles and facilitate the process of leveling the layer;
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On a fresh layer, it is necessary to move in special shoes - wet shoes (shoes with spikes on the sole);
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The backfill layer is not processed;
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When spreading the layer, and especially when processing with a spiked roller, it is necessary to carefully monitor the lifetime of the material, since the viscosity of the material gradually increases and at the end of the lifetime, traces from a notched trowel, wet feet and spiked roller may not spread completely, leaving visible defects on the coating;
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When joining two sets of material later than after 15 minutes (at a temperature of +23ºС), a visible border may form;
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The application of the material should be started from the wall opposite the exit;
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In rooms with complex geometry, we recommend that you think over the schedule and work plan for pouring in advance;
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The interlayer interval at a temperature of +23°C should be no more than 24 hours;
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The next layers must be applied no earlier than the previous layer reaches the “tack free” state, i.e. does not stick to fingers and does not leave marks when touched;
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The minimum and maximum interlayer interval can be more or less than the specified one and directly depends on the temperature at the object.
Epoxy floors for industrial premises
Consumption
Material consumption of the type of coating system chosen (MasterTop 1273, 1273E, 1273R), as well as the requirements of a specific project.
Cleaning tools
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After completion of work, the tools are cleaned with an organic solvent;
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Cured material can only be removed mechanically;
Security measures
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When working with the material, it is necessary to ensure ventilation of the room;
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When working, it is necessary to use special clothes and shoes, goggles and gloves;
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Do not allow material to come into contact with exposed skin;
- In case of contact with eyes or mouth, rinse with plenty of water and seek medical advice immediately.
Ecology/waste management
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Components of materials in the liquid state are hazardous to water and aquatic organisms;
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Do not allow entry into sewers, waterways and soil;
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When cured, MasterTop BC 372 is not hazardous;
- Dispose of in accordance with local regulations.
Precautionary measures
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During laying, the ambient temperature should be in the range from +10 ºС to +30 ºС;
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Under the concrete slab on which the MasterTop coating is laid, a working waterproofing is required;
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The product must be applied by qualified installers;
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For application in cold conditions, warm up the material and fillers in advance (1-2 days in advance);
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The strength class of the board/screed for applying MasterTop must be at least C25;
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The terms of work and hardening of systems based on resins depend on the temperature of the environment and the surface, the relative humidity of the air;
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At low temperatures, the reaction slows down, which prolongs the time of work with the mixture and the setting time;
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High temperatures accelerate the reaction, as a result of which the working time with the mixture and the setting time are reduced;
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For complete curing of the material, the ambient and surface temperatures must not fall below the specified minimum limits;
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Do not apply without primer;
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Avoid contact with water for 24 hours after installation; If this happens, the contacted coating should be completely replaced;
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Observe the ratio of components, do not add solvent;
- Do not mix components by hand.
Package
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The material is supplied in metal pails;
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Component A -25.5 kg;
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Component B - 4.5 kg;
- The weight of the set is 30 kg.
Epoxy floors for car service
Storage
- The material must be stored in its original packaging in a cool, dry place (at a temperature of +5°C +25°C.
- Shelf life: 24 months.
