Artikkel bilde sprøyteisolering

Artikkel i Synthesia Technology

Thermal insulation with Poliuretan Spray S-303 HFO. Successful application in Norway

Polyurethane systems have a low thermal conductivity, which guarantees an optimal thermal insulation as well as a high sealing effect. Furthermore, they are very easy to apply thanks to their lightness.

Poliuretan Spray S-303 HFO by Synthesia Technology is a polyurethane system designed to improve thermal insulation using the lowest thicknesses on the market.


Hereafter, we present its characteristics and its successful application on a railway line in Norway. 

Poliuretan Spray S-303 HFO has been developed using the 4th generation of foaming agents, which results in a  very low global warming potential (GWP).

This system provides many advantages, such as:

The suppression of acoustic and thermal bridges.
Good adhesion to the substrate.
Insulation and waterproofing in a single process.
It’s easy to transport and store.
Sealing of gaps reducing the passage of sound.
Increase of living area.

Poliuretan Spray S-303 HFO is applied by projection with high pressure equipment, equipped with heating, with a mixing ratio of 1: 1 in volume. Its main application is the thermal insulation of buildings, houses (partition walls), industrial buildings, farms, etc.


Due to the complexity in the installation, adherence and stability of the insulating material, the sprayed polyurethane system Poliuretan Spray S-303 HFO by Synthesia Technology Europe was selected.

This new-generation polyurethane spray system, free of HFC as foaming agent and developed with the 4th generation of foaming agents (HFO), stands out as the best solution in the market to offer a continuous thermal insulation with the minimum thickness.