What is typically found in foam pipe insulation?

Foam pipe insulation is primarily made from a type of polymer called polyurethane. This material is chosen for its excellent insulation properties, which help to prevent heat loss from hot water pipes and condensation on cold pipes. Polyurethane foam provides a high R-value, meaning it has a better thermal resistance compared to other insulation materials, making it very effective in maintaining the desired temperatures within piping systems.

In addition to being a great insulator, polyurethane is also lightweight and can easily conform to the shapes of various pipes, providing a snug fit that enhances insulation efficacy. This is particularly valuable in both hydronic and process piping applications, where efficient temperature management is crucial for system performance.

While different forms of insulation may use other materials like polyethylene or incorporate air, polyurethane remains the most common choice for foam insulation due to its superior thermal properties and versatility.