In order to provide optimal conditions and because it is vital to save energy, we are constantly searching for new insulation solutions with more and more effective properties of insulating materials.


PetroStal is one of the few companies that offer spraying of polyurethane foam coatings.


For this purpose, we use state-of-the-art polyurethane foaming machines and we employ a highly qualified staff of workers with years-long experience – at the highest level. We also use materials from leading manufacturers.


The technologies we use are displacing traditional insulating materials such as mineral wool, rubber or expanded polystyrene. It is the result of the perfect properties of polyurethane foam:
  • low coefficient of thermal conductivity – a half of that of expanded polystyrene and mineral wool
  • total elimination of thermal bridges that cause heat loss, jointless construction
  • better noise insulation, healthier and cleaner surroundings without allergens, fungi, dust, rodents and insects
  • outstandingly fast application of the coating – up to 300 m2 per day
  • 15 s drying time of a one-time spraying
  • resistance to aggressive chemical environment, water insulation properties
  • physical parameters persistent in time
  • POLYURETHANE (100 mm)
  • STYROFOAM (133 mm)
  • MINERAL WOOL (154 mm)
How is polyurethane made?


Polyurethanes (PUR or PIR) are polymers produced through addition polymerization of multifunction isocyanates (the “B-side” ingredient) with polyols (the “A-side” ingredient).


In practice, polyurethane is made through mixing two different chemical ingredients (“A-side” and “B-side”) in suitable proportions using a machine that foams portions of the mixed ingredients in the space to be filled, where the foam grows and hardens. When work is carried out using the spraying method, the mixture of very active ingredients is sprayed onto an isolated surface, similarly to spray painting.


This reaction can progress rapidly, producing large amounts of heat without any by-products.


In the end, we can obtain a solid product (about 20 times larger in volume than the “A-side” and “B-side” used), with a porous structure, making it very light and providing excellent insulation parameters.



Zdjęcie BASF Polska.

The foam (PUR/PIR) adheres to most surfaces, including wood, metal, concrete, glass and most plastic surfaces.


Hardened foam provides protection from moisture, insulation, noise dampening, structural reinforcement, sealing against airflow and soundproofing for empty spaces. Polyurethanes have certificates of maritime classification societies, the Building Research Institute and the National Institute of Public Health – National Institute of Hygiene.


Depending on the alteration of proportions between the “A-side” and “B-side,” polyurethane foam can have different physical properties. It is an unquestionable advantage of this type of insulation.