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Thermal insulation of buildings

RTF heat insulation material

       RTF-material is based on the energy storage phase shift approach and has double potential, both of hot melt and of thermal resistance. Traditional material, unlike RTF-material, has only thermal resistance of the insulation materials.

  • Standards: GB/T20473-2006 and Q/CYBFT001-2008
  • The heat energy of the phase shift is 240,44 J/g (for 38 mm thickness sample)
  • Heat transfer coefficient from 0.56W / (m2 • K), equal to thermal conduction of 0.027W / (m2 • K)

       RTF controls changes of material energy accumulation phase. During the day the sun heat is accumulated and during the night the heat is released due to material phase change. This process saves heat energy. RTF-material prevents overheat and temperature difference, as well as adjusts itself to the ambient temperature.

  •  As soon as the temperature inside reaches 24°С, the dual-phase insulation material passes from solid state into the liquid state absorbing most of the heat.
  •  When the temperature inside falls below 24°С, the dual-phase insulation material passes from liquid state into the solid state and generates heat.
  •  RTF-material with phase transfer system uses surplus of heat, while changes in gradient value reduce the heat loss effectively.
  • Thermostat with phase transfer system is widely used in heating systems, because it is able to heat living environment at room temperature. Due to its features, in summer the RTF-material prevents heat penetration, while in winter it saves the heat. That is how the temperature balance is continuously controlled.

Functional area:
       RTF-material is widely applied in industrial and civil construction, in internal and external insulation, roof coating, connecting walls, stairwells, ceiling insulation, etc.
RTF-material is in demand and has approved itself. Advanced technologies are used for production of this material. Mounting in wet weather is possible. The material has no application restrictions.


  • Double insulation. The material has double function of hot fusion and thermal resistance generation. In traditional insulation materials only single thermal resistance is available.
  • Fire resistance. The material has an incombustible material in its composition to comply with fire safety regulations.
  • Environment protection. RTF-material is non-toxic, tasteless, non-radioactive, has no influence on ecologically clean products.
  • Water resistance. The material is water-resistant: does not become loose, is not deformed after long-term water influence.
  • High resistance to compression (deformation). This material has a mesh structure and is compression resistant.
  • Acoustic insulation. RTF-material has a multiple-level non-hollow structure, reduces vibration source influence.
  • Alkali inhibition. The material has natural flavor, contains aromatic components and antihelmintic.
  • Cost effectiveness. Low cost material; the price is lower than the price of similar products.


Unit Standard requirement Results
1 Latent heat, KJ/m³ ≥2000 5686
2 Thermal conductivity, W/(m.k) ≤0.029 0.027
3 Dry density,  Kg/m³ 301~400 318
4 Compressive resistance,  MPa ≥0.4 0.42
5 Linear contraction, % ≤0.3 0.28
6 Adhesive strength ≥50 86
7 Combustion property A, noncombustible A, noncombustible
Quality loss, % ≤5 4.9
Strength loss under compression, % ≤25 23

Raw materials for production of RTF-insulation materials:

  • Cement
  • LimestoneCalcium
  • Rubber granules
  • Lignin fibers
  • Polypropylene
  • Perlite
  • Phase powder