Engineering ToolBox - Resources, Tools and Basic Information for Engineering and Design of Technical Applications!

Polyurethane Insulation

Thermal conductivity - k-values - vs. temperature.

Polyurethane is an organic polymer formed by reacting a polyol (an alcohol with more than two reactive hydroxyl groups per molecule) with a diisocyanate or a polymeric isocyanate in the presence of suitable catalysts and additives.

Polyurethanes are flexible foams used in mattresses, chemical-resistant coatings, adhesives and sealants, insulation for buildings and technical applications like heat exchangers, cooling pipes and much more.

Thermal conductivity vs. temperature are indicated in the charts below:

• T(oC) = 5/9[T(oF) - 32]
• 1 W/(m K) = 6.935 (Btu in)/(h ft² °F)

Related Topics

• Heat Loss and Insulation

Heat loss from pipes, tubes and tanks - with and without insulation. Use of materials lke foam, fiberglass, rockwool and more.
• Insulation

Calculate heat transfer and heat loss from buildings and technical applications. Heat transfer coefficients and insulation methods available for reduction of energy consumption.

Related Documents

• Calcium Silicate Insulation

Thermal conductivity of calcium silicate insulation - temperature and k-values.
• Fiberglass Insulation

Thermal conductivity of fiberglass insulation - temperature and k-values.
• Insulation Materials - Operating Temperature Limits

Temperature limits for commonly used insulation materials.
• Mineral Wool Insulation

Thermal conductivity - k-values - vs. temperature.
• Perlite Insulation

Thermal conductivity - k-values - vs. temperature.
• Pipes - Insulated Heat Loss Diagrams

Heat loss (W/m) from 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 10 to 80 mm and temperature differences 20 to 180 degC.
• Pipes - Insulated Heat Loss Diagrams

Heat loss (W/ft) diagrams for 1/2 to 6 inches insulated pipesĀ - ranging insulation thickness 0.5 to 4 inches and temperature differences 50 to 350 degF.
• Piping - Recommended Insulation Thickness

Recommended insulation thickness for heating systems like hot water and low, medium or high pressure steam systems.
• Polyurethane - Chemical Resistance

Chemical resistance of Polyurethane (PUR).
• Steel Pipes - Heat Loss Diagram

Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.
• Thermal Resistivity and Conductivity

The ability of a material to resist flow of heat.
• Transmission Heat Loss through Building Elements

Heat loss through common building elements due to transmission, R-values and U-values - imperial and SI units.
• Water - Thermal Conductivity vs. Temperature

Figures and tables showing thermal conductivity of water (liquid and gas phase) with varying temperature and pressure, SI and Imperial units.

Search

Search is the most efficient way to navigate the Engineering ToolBox.

Engineering ToolBox - SketchUp Extension - Online 3D modeling!

Add standard and customized parametric components - like flange beams, lumbers, piping, stairs and more - to your Sketchup model with the Engineering ToolBox - SketchUp Extension - enabled for use with older versions of the amazing SketchUp Make and the newer "up to date" SketchUp Pro . Add the Engineering ToolBox extension to your SketchUp Make/Pro from the Extension Warehouse !

We don't collect information from our users. More about

We use a third-party to provide monetization technologies for our site. You can review their privacy and cookie policy here.

You can change your privacy settings by clicking the following button: .

Citation

• The Engineering ToolBox (2007). Polyurethane Insulation. [online] Available at: https://www.engineeringtoolbox.com/polyurethane-insulation-k-values-d_1174.html [Accessed Day Month Year].

Modify the access date according your visit.

7.25.9

.