Liquid insulation “Isolat” for the application of thermal insulation coatings.
Liquid insulation “Isolat” is a high-tech fine insulation material – polymer composition with hollow silicate micro-spheres filled with rarefied air. Distinctive properties of this coating are: ease of application (regular paint), environmental cleanliness, lack of discharge of harmful substances, operating temperature range from -60 to +500 °C, the active layer thickness of 0.5-3 mm, long life without loss of performance.
The shortcomings of traditional insulation materials
Liquid insulation “Isolat” is a high-tech fine insulation material – polymer composition with hollow silicate micro-spheres filled with rarefied air, which makes it light, flexible, elastic and provides good adhesion to the coated surfaces of various geometric shapes. Distinctive properties of this coating are:
– the ability to use a wide range of temperatures covered surfaces (up to +500°C),
– high stability under ultraviolet rays,
– prevent condensation on cold metal surfaces (pipes, roofing, hangars, manufacturing equipment).
The coating Isollat minimized all the known mechanisms of heat transfer. The main purpose of the material – reduced thermal conductivity – is determined by the ability to reflect and scatter the radiation: up to 80% of the light rays and up to 90% of infrared radiation and low coefficient of heat transfer from its surface to the surrounding air. With prolonged heating and exposure to sunlight the properties of ultrathin thermal insulation does not change, ultraviolet radiation is totally reflected without damaging the insulation.
After applying layer forms a thin polymer coating, characterized by elasticity, flexibility, toughness and small specific weight. “Isollat” resistant to mechanical stress, does not support combustion and is significantly (several times) reduces the thermal conductivity covered her items. “Isollat” does not lose its properties at sharp fluctuations of temperature and in high humidity conditions.
Liquid insulation “Isollat” does not require additional protection on the outside, the service life is not less than 10 years.
A technical and economic comparison shows that the heat insulation on the basis of the cover of “Isolat” with a thickness of 2 mm corresponds to 40-60 mm of mineral wool or polystyrene of 40 mm. The use of double-layer coating “Isollat” to reduce heat loss in 2.93 times.
The material is white in color. You can add a Collier to paint the surface in desired color.
– ease of application (regular paint),
– ecological cleanness, absence of discharge of harmful substances,
– operational temperature range from -60 to +500°C,
– the active layer thickness of 0.5-3 mm,
– long service life with no loss of technical characteristics
– reduce capital and operating costs;
– base resistance anticorrosive protection,
– resistance to changes in humidity and temperature;
– conduct thermal insulation works in the conditions without stopping production,
– the possibility of applying without involving professional contractors,
– prevents formation of corrosion and condensate
– application of the duplex coating “Isollat” to reduce heat loss in 2.93 times. Insulation on the basis of the cover of “Isolat” 2 mm thickness replaces 40-60 mm of mineral wool or polystyrene of 40 mm,
– protects the surface from negative influence of external factors: high temperature, humidity (prevents corrosion and condensation), solar radiation
– estimated cost of insulation 1 (one) m2 of the surface below 20-30% compared to traditional insulating materials,
– possible joint application with traditional insulating materials
– provides adhesion to the insulated surface,
– moisture does not accumulate, including between the coating and the insulating surface,
– when adding a caller might use different colors.
Coating application “Isolat”:
– construction and reconstruction (insulation of facades and of metal construction, internal premises and roofs, hangars, eliminating “cold bridges”),
– energy, industrial and housing (insulation of steam pipes, flues and flue pipes, valves, ducts and other process equipment),
– oil and gas industry, the petrochemical industry (for protection against corrosion and insulation equipment for the production and transportation of oil and gas reservoirs),
– food industry and agriculture (insulation of tanks and reservoirs, industrial buildings),
– road transport (for insulation cars),
– widely used in the implementation of the most diverse construction projects.
The shortcomings of traditional insulation materials:
Mineral wool – the most common insulation, there are dozens of manufacturers and hundreds of different from other brands. Common to all types of mineral wool plates is the use of mineral fibers on the basis of basalt and resin binder. While observing the modes of exploitation of mineral wool can indeed act as effective and durable insulation material. In practice, however, to achieve all of the recommendations of the manufacturers is impossible. Most often in a year after carrying out insulation work mineral wool loses about 40% of their useful properties. Material is wrinkled, swells from exposure to water, steam or saturated air, which leads to a natural appearance of “cold bridges”. Mineral wool does not provide adhesion to the insulated surface. Between the insulation layers and the surfaces, make sure there are cracks through which warm air leaks out. Over time, this fact begins to gain importance, and the expanding cavity become conductors of heat radiation.
If you are using mineral wool boards and mats at sites with high humidity and significant temperature changes, the coefficient of thermal conductivity of the material increases significantly. When the material density of 74 kg/m2 thermal conductivity increases by 2.8 times, and at a density of 156 kg/m2 – 1.9 times.
It should take into account the effects of wind. At a wind speed of 0.7 m/sec. the thermal conductivity of mineral wool will increase by 60%.
It should say on the environmental aspect of the use of mineral wool. It is well known that it is composed of carcinogens, and binders are formaldehyde resins that emit hazardous to human health formaldehyde and phenol. The accumulation of phenol leads to respiratory diseases, skin diseases, negatively affects reproductive function and contributes to the emergence of cancer. Mineral wool produces about 0.02 mg formaldehyde per 1 square meter surface per hour. Mineral fiber plates are gradually destroyed, turning to dust and dust deposited in the lungs of man. It is estimated that nine-storey panel building with an area of insulation up to 1500 sq. m. for 25 years of operation will give not less than 1875 kg of dust made by the flow of air.
Mineral wool is positioned by manufacturers as a combustible material. In fact, in formal accordance with this statement in the event of fire, the concentration allocated to these materials, vapors of phenol and formaldehyde brings much more harm on the premises and people arriving personnel rescue services than direct exposure to fire and high temperatures.
Polystyrene foam has broad applications for exterior insulation of enclosing structures of buildings and structures. Meanwhile, this material is the highest number of complaints from the operational services. The accumulation of moisture between the walls (walling) and the heater leads to the rapid accumulation of condensation and frost, the appearance of fungi, micro-cracks and seams.
Polystyrene is prone to rapid oxidation even at room temperatures, which leads to sad consequences: the material is short-lived and fire. All manufactured varieties of EPS belong to the class of combustible materials, and many are simply hazardous. An even greater threat is the toxicity of the components of EPS in case of fire. The volatile products emitted during the combustion of polystyrene, lead to mass poisoning of people.
Even in conditions of normal operation, in the absence of light and precipitation, the EPS allocates benzene, toluene, ethylbenzene, and acetophenone, formaldehyde, methyl alcohol, and even styrene to 25 toxic compounds that pose a risk to human health.
Finally, the polystyrene plates are a perfect environment for rodents, which in a few years turn them into twisty labyrinths – the foci of dangerous infections.
Polyurethane foam (PUF)
The main threat to the polyurethane foam insulation regardless of the method of application (spraying, pouring, shell) is exposure to ultraviolet radiation, which reduces its service life up to 2-3 years. The superficial layers of rigid foam are a result of more light, elastic, conversely, more rigid. Efficiently to protect the foam from UV exposure is virtually impossible. Large criticism is the resistance of such insulation. Operating temperature of the polyurethane should not exceed 130°C (valid only short-term operation at 150°C). Traditional Russian temperature changes in heating and hot water, not to mention industrial production, significantly affect the efficiency of foam insulation. In this case, the value also have relatively low strength and poor resistance insulation against mechanical influences. When wet insulation starts to produce ions of the halogen, which have a corrosive effect on the metal pipe that requires the use of additional hydroprotection. As a result of violation of waterproofing membrane and vapor resistance full design is not able to extract the accumulated moisture. The process of installing foam insulation on pipelines is quite time consuming and requires highly skilled workers, especially when sealing joints. Unfortunately, a significant part of preparation of initial components and spray foam are farmed out to random people. The chemical composition of the polyurethane foam in this case it remains on their conscience.
In the process of burning (overheating) of the polyurethane foam are allocated significant amounts of carbon monoxide, vapors of hydrocyanic acid. In the absence of antipireny additives in foam insulation made in the handicraft way, the fire spreading with high speed, and the amount of emitted harmful substances is increasing exponentially.
Insulation made of foam rubber
With all the advantages of heat insulation from foam rubber it is worth noting the exceptionally short time of its operation. Already at the temperature +90°C begins the process of destruction of this material. At +100°C, it very quickly loses its characteristics. This factor and constant changes in temperature conditions cause the insulation of foam rubber is only 2-3 years.
It should be noted that a common drawback of all the traditional types of thermal insulating materials is the inability to ensure efficient protection of surfaces with complex configurations, especially in the conditions of production. When used on metal structures there is also the need for additional application of anti-corrosion materials.
Note: the description of technology on the example liquid insulation “Isolat”.