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Spray polyurethane foam (SPF) system for thermal insulation(applied density ±33-35kg/m³)

TECNOFOAM G-2025, spray polyurethane foam system  (SPF) for thermal insulation is specifically formulated to apply foam with applied density around (33~35 kg/m³). Its application must be carried out by the specific reactor equipment by mixing Tecnofoam G-2025 (polyol side) and Tecnofoam G-2049.I (isocyanate side). The blowing agent is water.

It has CE marking on the basis of a statement made DoP Declaration of Performance (DoP) under the European Norm EN-14315-1:2031. 

cewater baseFree of HFC



The spray polyurethane foam system TECNOFOAM G-2025 can be used in these situations:

  •  thermal insulation in construction, industrial, farming or agricultural facilities.
  • in applications inside ceilings, interior chambers facade, ventilated facades, partitions in general.

NOTE: For other applications/situations, please, consult our technical department

applied density 33~35 kg/m³ 
thermal conductivity 0,031 W/m·K
stirring time 3 ~ 5 secs
gel time 9 ~ 12 secs
tack-free time  12 ~ 15 secs
fire reaction Euroclass E 
mixing ratio(in volume) 100/100
close cell content <80%( CCC2)
application method spray equipment


  • TECNOFOAM G-2025 is a product with high insulating capacity, easy to apply to cover all surfaces using our spray equipment TC2049 (spray-equipment.tecnopolgroup.com) or similar
  • it forms a continuous coat without joints preventing the formation of "heat bridges" and providing an optimum thermal insulation surface with high thermal insulation parameters
  • the blowing agent is water. The gas occluded in the internal cells of the product formed is CO2, created from the reaction between the water contained in the polyol and the isocyanate.
  • the properties of this spray polyurethane foam system allow it to adhere to any surface such as concrete, ceramic, metal, polyurethane foam, wood, acrylic paints (checking the situation of areas recommended).
  • it is free from harmful to the ozone layer, so do not promote the greenhouse effect (NOT contain HFCs, HCFCs, VOCs, etc ...); it does not emit any substance to the environment once installed. It is a system 100% recyclable by mechanical means friendly to the environment. , and no gas collection for recycling and/or destruction is required.
  • applied  total obtained density depends on the site ambiance and substrate conditions during the application process as well as on the spraying technique. Icreasing layer thickness, the density will decrease.
  • the thermal conductivity (λ) coefficient remains unchanged from the application and along with the product life.
  • contractors and applicators must comply with all applicable and appropriate guidelines for processing, handling guidelines.
  • It is regulated under the European standard EN 14315-1: 2013 "Thermal insulating products for applications in buildings, rigid polyurethane foam (PUR) products", for which it has CE marking based on a DoP Declaration of Performance.


Metal drums of 230 kg for the polyol, and 250 kg for the isocyanate.


  • POLYOL COMPOUND: 3 months (stir before use)

Stock the drums at a temperature within 5 ºC ~ 30 ºC, in a dry place, keep away from direct sunlight, extreme heat, cold, or moisture. Low temperatures increase the viscosity of the polyol which makes it difficult to mix and apply, and in isocyanate, they can generate crystallizations, which can vary its mixing ratio and causing internal problems in the mixing modifying the applied system properties.


In general, you should take the following factors:

  • the application of this polyurethane foam system  should be performed under the non-presence of moisture or water from the support stand on which to apply either at the time of application as a posteriori.
  • the substrate must be clean and free of dust, oils or greases.
  • in case of existence of expandion joints, they must be covered with a non adhesive plastic tape to avoid breaks in the SPF due to the movement of the support.
  • the range of the surface temperatures is 5ªC to 40ºC
  • in applications with high-temperature gradients, a vapor barrier is placed on the warm side of the insulation to prevent condensation
  • do not apply on terraces, balconies, roofs, or in situations of exposure to the outside
  • it is recommended to protect the polyurethane foam using paints or elastomers.
  • performs successive layers of a thickness of 2~4 cm each until getting the total planned thickness. Wait to apply the second layer, until the minimum temperature on the first layer was 40-50ºC
  • the total applied thickness will be defined by the project specs. Applicator must respect the local regulations according to the use, taking into account the physical and chemical characteristics of the polyurethane foam system to be used


For the formation, it is necessary to mix the two initial liquid components, isocyanates and polyols with our spray equipment TC2049 (spray-equipment.tecnopolgroup.com) or similar (proper maintenance and cleaning it is recommended). The general parameters for this material will be the following:

  • Heater isocyanate temperature: 40-45 ºC
  • Heater polyol temperature:45-55ºC
  • Hose temperature:45-50ºC
  • Pressure:1.450-1.750 psi (100 to 120 bar)
  • Mixing chamber (recommended): GU-07008-2

Anyway, these parameters for adjusting the projection equipment are approximate and may change depending on the weather conditions of the environment at the moment to apply, therefore, it is the responsibility of the applicator values in each case the option to choose.


These safety recommendations for handling, are necessary for the implementation process as well as in the pre and post, on exposure to the loading machinery.

  • Respiratory Protection: When handling or spraying use an air-purifying respirator.
  • Skin protection: Use rubber gloves, remove immediately after contamination. Wear clean body-covering. Wash thoroughly with soap and water after work and before eating, drinking, or smoking.
  • Eye / Face: Wear safety goggles to prevent splashing and exposure to particles in the air.
  • Waste: Waste generation should be avoided or minimized.
  • Incinerate under controlled conditions in accordance with local laws and national regulations.
  • Re-occupancy of the work site without respiratory equipment is minimum 24 hours providing the correct ventilation for the area sprayed.

Contractors and applicators must comply with all applicable and appropriate guidelines for storage and safety guidelines. Anyway, consult the material and safety data sheet of the products of the system.


characteristic POLYOL


Nº OH      DIN 53240-2

180 ~ 220  mgKOH/g



 320~420 mPa.s

210 mPa.s

Water content     ISO 14897

4 ~ 4,2 %


NCO  content     ISO 14896


31 %

Specific weight at 22ºC

1,12  g/cm³ 1,23 g/cm³

Results performed in the laboratory at 25ºC and 50% RH, under controllable conditions. These values may vary depending on the application, climatology, or substrate conditions.




Stirring time 3 ~5 secs

Gel time

9 ~12 secs

Tack-free time

12 ~15 secs

Density free rise 

23 ~27 kg/m³  

Applied density 33~35 kg/m³

Closed-cell content  

<80 %( CCC2)

Thermal conductivity value  EN-12667 (none or diffusion open method)

0,031 W/mK

Fire reaction       EN-13501 Euroclass E
Range of temperatures (substrate/ambiance) 5 ~ 40ºC
Max. relative humidity 90%
Max. substrate humidity (dew point) 0

Results were performed in the laboratory at 20ºC and 50% RH, under controllable conditions. These values may vary depending on the application, climatology, or substrate conditions.