K-Flex 6RX

K-Flex Insul-Tube is a CFC-free, flexible elastomeric thermal pipe insulation. This tube key physical properties are approved through supervision by factory mutual research corporation. It is non-porous, fiber-free and resists mold growth. An EPA-registered antimicrobial agent is incorporated into the product providing additional protection against mold, fungal and bacterial growth. It is Green guard certified as a low VOC material, meeting the requirements of the “children and schools” and “indoor air quality” classifications. It is used to retard heat gain and prevent condensation or frost formation on refrigerant lines, cold water plumbing and chilled water systems. It also retards heat loss for hot water plumbing, liquid heating, dual temperature piping and many solar systems. It can be used with heat tracing/heat tapes. It has a very tough skin that withstands tearing, rough handling and severe environmental conditions, yet is flexible for easy installation. It has superior cold weather flexibility. It is made from a UV-resistant elastomeric blend. For moderate UV exposure no additional protection is needed. For severe UV exposure (rooftop applications) or for optimum performance, K-FLEX 374 protective coating, appropriate jacketing or K-FLEX clad is required. The closed-cell structure and unique formulation of this K-Flex Insul-Tube effectively retards the flow of moisture vapor and is considered a low transmittance vapor retarder. For most indoor applications, tube needs no additional protection. Additional vapor barrier protection may be necessary for this tube when installed on low temperature surfaces that are exposed to continuous high humidity. K-Flex Insul-Tube in wall thicknesses of 2-inches and below has a flame spread rating of 25 or less and a smoke development rating of 50 or less as tested by ASTM E84, “surface burning characteristics of building materials”. Designed for the professional contractor.