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Rigid polyurethane, formed through the reaction of polyols, isocyanates and other auxiliary chemicals in specific proportions, has become a widely used material in today’s construction sector thanks to its closed-cell structure and superior physical properties that vary with density.
As a manufacturer of decorative polyurethane products, we produce interior decoration items as well as exterior facade claddings such as cornices and floor trims from polyurethane. After extensive R&D studies, we offer the highest quality and smooth polyurethane products to our customers. Our products comply with European standards EN 253.
The application is carried out on-site or as pre-production using spray injection or casting methods.
The reaction time varies from a few seconds to a few minutes depending on the reaction system and site conditions.
POLYURETHANE applications result in a block form coating.
The absence of joints compared to other insulation materials eliminates thermal bridges, which is a significant factor in preference.
Polyurethane is a superior thermal insulation material, used in all piping systems between -200°C and +140°C, and up to +315°C when combined with mineral wool.
It is resistant to pressure and creates a sandwich between the fluid it carries and the jacket pipe.
It provides sound insulation.
It is easy to apply.
Its lifespan is approximately one century.
Among insulation materials, it has the lowest heat conductivity.
Its thermal conductivity coefficient is 0.017 – 0.019 Kcal/m h °C.
The area of application must be clean.
The surface must not be wet before polyurethane application.
In the Marmara region, 30–40 mm thick polyurethane spray insulation is considered suitable for walls and roofs of residential and industrial buildings. Depending on climate conditions, thickness may be increased by 10–20 mm in certain regions.
Due to its closed-cell structure, polyurethane temporarily absorbs water and is thus considered a thermal insulation material, not a waterproofing material.
When sprayed in liquid form, polyurethane reacts rapidly, expands and hardens, ensuring complete seamless insulation with no thermal bridges.
Thermal conductivity value:
According to TS 825 thermal insulation standards, the thermal conductivity value (λ) of 160 kg/m3 density polyurethane coating was measured as 0.0242 W/mK, the lowest among all thermal insulation materials in use.
Water vapor diffusion resistance (permeability):
Water vapor diffusion indicates how much vapor passes through a material under specific conditions of temperature, humidity and thickness. Condensation inside walls due to indoor-outdoor temperature differences significantly affects comfort. Our 160 kg/m3 density polyurethane material was tested with µ value = 100–130, showing sufficient resistance against condensation.
Long-term water absorption: According to TS EN 12087, long-term immersion (28 days in water tank) tests showed water absorption levels of 1.10% – 1.30% in polyurethane material with 160 kg/m3 density.
Dimensional stability:
Exterior facade materials are exposed to extreme thermal changes and must be dimensionally stable. Polyurethane demonstrates no expansion between -30°C and +70°C. Thermal expansion coefficient beyond +70°C is measured as 147×10-6 (1/K), resulting in a width and length dimensional change of about 2%, requiring joint applications.
Mechanical properties:
Compressive strength: Polyurethane has one of the highest compressive strengths. At 160 kg/m3 density, deformation of up to 10% thickness occurs under a compressive strength of 516 kPa (5160 kgf/m2).
Elastic modulus: The elastic modulus of 160 kg/m3 polyurethane has been tested at 3000–3500 kPa.
Fire resistance:
Polyurethane belongs to class E under current European Norm EN 13501-1 (formerly B2), categorized as a difficult-to-ignite material. Fire testing has been conducted in accordance with TS EN ISO 11925-2, and certifications comply with required standards.
Freeze-thaw resistance:
Tests performed between -20°C and +20°C demonstrate that the material withstands sudden temperature fluctuations without damage.
Resistance to acid vapor and solutions:
According to tests conducted at ITU laboratories, polyurethane resists acid vapor and direct acid solution exposure. Long-term (30-day) acid vapor contact shows no discoloration or material degradation, while direct acid solution contact results in about 10% mass increase and minor color change.
