Armacell IPRST05812 Self-sealing Epdm Pipe Insulation 5/8 in

Product Description

The ARMACELL IPRST05812 ArmaFlex is a self-sealing, closed-cell EPDM elastomeric pipe insulation wrap designed for insulating liquid cooling and heating lines. The wrap measures 5/8 inch inside diameter with a 1/2 inch wall thickness and covers 6 feet per piece. Its peel-and-press adhesive strip eliminates the need for separate tape or contact cement on a standard longitudinal seam, bonding the insulation to the pipe and maintaining a seal for the life of the system. Licensed HVAC technicians, plumbers, and refrigeration mechanics install this product on both hot and cold line sets.

This insulation wrap is suited for residential and light commercial applications involving AC refrigeration lines, chilled water piping, hot water supply lines, and general plumbing. The closed-cell EPDM structure retards heat gain on low-temperature lines and prevents heat loss on hot water runs. Its flexibility allows it to conform to pipe routing in tight mechanical spaces, making it practical for retrofit and new-construction installs alike.

Key Features

• Self-sealing peel-and-press adhesive seam — no additional tape required for the longitudinal closure
• Closed-cell EPDM construction resists moisture absorption and maintains thermal performance over time
• UV-resistant outer surface suitable for exposed outdoor line sets
• Low thermal conductivity reduces energy loss on both hot and cold piping systems
• Flexible, lightweight material conforms to bends and fits tight mechanical spaces
• Versatile use across AC refrigeration, heating, and plumbing applications

Compatibility

Designed as an OEM-style replacement and standard fitment for 5/8 inch outside diameter pipes and tubing requiring closed-cell elastomeric insulation in HVAC, refrigeration, and plumbing systems.

Installation Notes

Installation is performed by licensed HVAC technicians, refrigeration mechanics, or plumbers depending on the system type. Shut off and isolate the pipe or line set before applying insulation, and ensure the pipe surface is clean and dry for proper adhesive bond. Peel the backing strip and press the seam firmly along the full length of the wrap; butt joints at fittings and elbows should be sealed with a compatible elastomeric insulation adhesive. Follow local mechanical codes and manufacturer seam-sealing guidelines for outdoor or high-humidity installations.

Technical Specifications

• Inside Diameter: 5/8 inches
• Wall Thickness: 1/2 inches
• Length: 6 feet
• Material: Closed-cell EPDM elastomeric rubber
• Sealing Type: Self-sealing peel-and-press adhesive
• UV Resistance: Yes
• Weight: 0.326 pounds
• UPC: 00803014144674

Standard Information

• Brand: ARMACELL
• Manufacturer Part Number: IPRST05812