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)
• Heat Loss and Insulation
Heat loss from pipes, tubes and tanks - with and without insulation - foam, fiberglass, rockwool and more.
Heat transfer and heat loss from buildings and technical applications - heat transfer coefficients and insulation methods to reduce energy consumption.
Piping - Recommended Insulation Thickness
Recommended insulation thickness for heating systems like hot water and low, medium or high pressure steam systems.
Steel Pipes - Heat Loss Diagram
Heat loss from steel pipes and tubes - dimensions 1/2 to 12 inches.