A recent fire at a Johns Manville (JM) plant in Defiance, Ohio, has limited supply of the company’s Micro-Lok[r] Pipe Insulation and caused JM to end production of preformed round air duct products. All other JM products for industrial and commercial applications are readily available.

The company is distributing Micro-Flex[r] Pipe and Tank Wrap, a semi-rigid fiber glass blanket with a random fiber orientation that allows the material to wrap pipes and equipment without gaps, as a suitable substitute for Micro-Lok in many applications. Micro-Flex will be stocked at JM’s Cleburne, Texas, plant so it can be shipped in mixed loads.

Other products unaffected by the fire include Zeston[r] and Ceel-Co[r] PVC fitting covers and jacketing, and Spin-Glas[r] equipment and board insulations.