Crossin^® Hard 40 - Spray thermal insulation

As a result of the combination and thorough mixing of both components, rigid (hard) foam is obtained. The system should be processed only with professional high-pressure foaming units equipped with a foaming head. This product is a unique system designed for the production of high-quality thermal insulation applied in residential, commercial, as well as industrial and agricultural buildings. The system is characterized by increased compressive strength, which enables long and short-term structural load. At the same time, the foam obtained using the Crossin® Floor system has increased flammability parameters (flammability class: E) and stable physico-mechanical parameters. Due to the appropriate thickness of the insulating layer (at least two uniform layers, which in total give a thickness of not less than 30 mm), the surface of the floor or foundations is jointless, which significantly improves the energy efficiency of the entire insulated surface.

If the foam is exposed to direct UV radiation (sunlight), it should be protected, for example by painting it with at least two layers of protective paint (as recommended by the manufacturer).

Crossin^® Hard 40 was introduced for sale on the basis of the Regulation on construction products CPR No. 305/2011 together with the assessment of performance carried out by the Building Research Institute (ITB) in accordance with the European harmonized standard PN-EN 14315-1. The product has the PZH hygienic certificate, as well as CE marking confirmed by the Declaration of Performance issued for this product.

Main application advantages of the product:

• Applicability directly onto the insulated surface made of most commercially available construction materials;
• External thermal insulation with a wide application range (insulation of floors, foundations in residential, commercial, industrial and agricultural buildings, both modernized and newly erected);
• Extremely durable and light insulation allows individual insulation thickness to be chosen without overloading the building structure;
• Jointless insulation, without thermal bridges or air gaps responsible for heat losses;
• The ability to isolate hard-to-reach places with full insulation tightness guarantee;
• The speed of execution and versatile technique of applying insulation give the possibility of making insulation in one day – in case of flat surface of floors / foundations of up to 1000 m²;
• Thermal insulation with high resistance to moisture and wind protects the insulated object against mould and fungi;

Mechanical properties of polyurethane foam made with the Crossin^® Hard 40 system:

•  Apparent density of the core: ≥ 38 kg/m³
• Classification of the reaction to fire performance: E
• Short-term water absorption by partial immersion, W_P ≤ 0,10 kg/m²
• Coefficient of thermal conductivity:
  • λ_{mean, i} : 0,020 W/(m·K)
  • λ_{90, 90} : 0,021 W/(m·K)
• Declared value, λ_D for thickness:
  • d_N < 80 mm: 0,026 W/(m·K)
  • 80 mm ≤ d_N < 120 mm: 0,025 W/(m·K)
  • d_N ≥ 120 mm: 0,024 W/(m·K)
• High mechanical strength, compressive strength: σ₁₀ ≥ 250 kPa
• Coefficient of water vapor diffusion resistance: μ ≥ 60 
• Temperature stability:
  • 70°C, 90% RH, over 48 h: DS(70,90)3
  • -20°C, over 48 h: DS(-20,-)3

In order for polyurethane insulation to retain all properties over time, it is important to clean the insulated surface before spraying. It is also worth protecting the room and the immediate surroundings from possible dirt.