NBR and XLPE are both proven closed-cell insulation materials, but their construction and handling characteristics make each better suited to particular projects.
Flexible NBR is a strong choice where complex pipework, valves and fittings demand a material that can follow tight contours. Its vapour resistance and low thermal conductivity support condensation control across HVAC and refrigeration services.
XLPE offers a strong, lightweight cross-linked structure and is available with a factory-bonded foil facing. It is especially useful across ductwork, larger pipe systems and prefabricated assemblies where a clean, durable finish is important.
Always assess operating temperature, exposure, fire-performance requirements, pipe or duct geometry and the complete installed system before specifying a product.