Facings

ASJ 4535

Johns Manville ASJ-4535 facing is a flame-retardant vapor barrier facing manufactured using lightweight aluminum foil (.0003” [9 micron]), fiber glass reinforcing yarn and bleached kraft paper laminated together with a flame-retardant adhesive. ASJ-4535 facing is mold and mildew resistant for added product protection and is typically used as a facing for rigid fiber glass pipe insulation.

Product Attributes

Mold Resistant Fire
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