What is the temperature range for Extruded Foam (Armaflex)?

• A. -20*F to 180*F
• B. 0*F to 212*F
• C. -40*F to 220*F
• D. -60*F to 200*F

Answer: (C)

Understanding this insulation’s temperature rating helps you know where it will perform reliably. For Extruded Foam Armaflex, the service temperature range is -40°F up to 220°F. The low end of -40°F means the foam stays flexible and resists cracking in very cold conditions, which is important for outdoor or unheated piping. The high end of 220°F shows it can handle hot-water and hot-piping scenarios without the foam softening, degrading, or losing its insulating properties.

This range is broader than some options, which either don’t go cold enough or don’t cover hot temperatures as high, making them less versatile for typical building and process applications.