Material: white polypropylene, 3-direction fiberglass scrim, adhesive, kraft,
 PE and aluminum foil
Application:used as insulation facing and vapor retarder for such insulation materials

as glass wool, rock wool, slag wool, suitable to be on-site laminated on
duct wraps, wool sheet, and wool blanket, meets stringent requirements of HVAC
system and heat insulation requirements of buildings