The Nomaco®, IMCOA®, and therma-cel® polyolefin insulation brands have been approved by Lubrizol for use with FlowGuard Gold®, BlazeMaster®, and Corzan® products. According to the company, its polyolefin products contain no plasticizers or other ingredients that may harm or degrade the physical properties of the CPVC pipe. Features of the insulation include a flame spread rating of not greater than 25 and a smoke density rating of not greater than 50 when tested in accordance with ASTM E 84 to 1-inch thickness. They are available in sizes of 3/8- to 4-1/2 inch ID and wall thicknesses of 3/8, 1/2, 3/4, and 1 inch. It has a water vapor transmission rate of 0 perm inch, nonporous. The insulation can be used for various HVACR and plumbing applications.
Nomaco K-Flex, 100 Nomaco Dr., Youngsville, NC 27596; 800-765-6475; 800-765-6471 (fax); www.nomacokflex.com