Polyurethane

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POLYURETHANE FOAM

The uses of polyurethane foam are unlimited! It can be applied to any surface - even the toughest and most demanding, and dries in just 30 seconds.

Thanks to its limitless applications, polyurethane foam is the ideal material for the construction industry where thermal insulation, waterproofing and sound insulation are required. It delivers excellent results and is high performance.

It is applied directly onto tiled roofs, metal roofs, flat roofs, perimeter walls and the like using a special high-pressure spray machine, or can be injected directly into walls. It adheres perfectly to any structural material it is applied to (concrete, marble, metal, stone, wood, etc.).

Polyurethane foam is free of joints and seams; reduces thermal bridges, and significantly reduces a building’s cooling/heating costs. It has the lowest Coefficient of Thermal Conductivity (k), and as such, offers better thermal insulation properties compared to other insulating materials. It is applied to surfaces free of moisture and loose materials and can be sprayed in any direction (vertically, horizontally or inversely)

It offers the ideal solution for the thermal insulating of homes, workplaces, cold storage installations, food preservation installations, livestock and poultry units, factory premises etc. It is also suitable for old constructions, as it does not add any weight to the load bearing structure of the building.

PROPERTIES

THERMALISATION

Polyurethane foam (closed or open cell) is one of the most effective thermal insulation materials due to its low thermal conductivity and high endurance. The excellent thermal insulation capability of sprayed and injected polyurethane foam systems is enhanced by the fact that they are uniformly and seamlessly applied, thus sealing hermetically, and eliminating thermal bridges.

WATERPROOFING

In addition to offering thermal insulation, closed cell polyurethane foam is also waterproof (depending on the percentage of closed cells in its internal structure), which distinguishes it from other insulating materials. It does not absorb water and because it is applied continuously and adheres to the supporting structure, it functions as a waterproof barrier on facades, protecting against water penetration.

SOUNDPROOFING

Construction materials used to divide spaces, such as ceiling and wall partitions, have higher sound insulation requirements. Sprayed polyurethane foam is applied uniformly and adheres perfectly to create a seal that not only insulates but also offers soundproofing and noise absorption.

FIRE RESISTANCE

Polyurethane foam is an organic material and, like most building materials, has a certain degree of fire resistance. Unlike other plastics, polyurethane foam is stable when heated; does not melt, and does not dissolve when charred. The European classification system permits and requires both the classification of the product individually, as well as its final role as part of a construction where the actual fire reaction performance as a whole can be determined.

EFFECT ON HUMANS AND ENVIRONMENT

Polyurethane foam is harmless to human health, as demonstrated by many of its applications. After application it remains inactive throughout its useful lifecycle and does not produce harmful emissions. During the spraying process, a chemical reaction occurs between the two constituent components (polyol and isocyanate), which is why professionals use the appropriate protective equipment when applying it.

ADVANTAGES

• Endures weight/load

• Long lifespan

• Quick and easy application

• Can be applied all-year-round

• Resistant to extreme weather conditions

• Does not create thermal bridges or cracks

• Adheres perfectly to any surface it is applied to

• Has no odour, does not oxidize and is resistant to fungus

• Offers thermal insulation, sound insulation and waterproofing all in one application

• Minimises the chance of damage as there are no joints or seams

• Endures very low / high temperatures (-50 ° C to 120 ° C)

• Is in full compliance with European standards and with the applicable fire safety regulations

CONDITIONS FOR APPLICATION

1. Concrete must be at least 28 days old

2. Maximum substrate humidify: 5%

3. Minimum ambient temperature: 10 °C

4. Maximum ambient temperature: 38 °C

TECHNICAL ADVICE

1. Prepare the surface by cleaning it to ensure it is free of any objects and loose materials.

2. Prepare the surface by jet spraying, blasting or sandblasting as long as required.

3. Apply a special primer to stabilise the substrate as required.

4. Spray expanding polyurethane across the whole surface in successive layers to create the desired thickness.

5. Spray polyurea or apply other special materials to protect the polyurethane and strengthen the seal.

6. Apply an aliphatic dye coating to protect the seal against solar radiation.