Hercules Product Info 
Hercules Product Id2DL
Unit of MeasureRL
Manufacturer Info 
Manufacturer NameJohns Manville
Brand NameJM
Part Number90005604
Product UPC662637278322
Product DescriptionJM 90005604 Flexible Duct Liner With Reinforced Coating System, 50 ft L x 47 in W x 2 in THK, Fiberglass
Product Features
Linacoustic RC insulation is a flexible duct liner made from strong glass fibers bonded with a thermosetting resin. The airstream surface is protected with JMs exclusive Reinforced Coating system, which combines our state-of-the-art Permacote acrylic coating with a flexible glass mat reinforcement to provide a smooth airstream surface.
Improves indoor building environment: Linacoustic RC duct liner improves indoor environmental quality by helping to control both temperature and sound
Resistant to dust and dirt: the tough acrylic polymer permacote coating helps guard against the incursion of dust or dirt into the substrate, minimizing the potential for biological growth
Will not support microbial growth: Permacote coating is formulated with an immobilized, EPA-registered agent to protect the coating from potential growth of fungi and bacteria
Linacoustic RC duct liner meets all requirements for fungi and bacterial resistance
Cleanability: if HVAC system cleaning is required, the reinforced coating airstream surface may be cleaned with industry-recognized dry methods
Highly resistant to water: the reinforced coating surface provides superior resistance to penetration of incidental water into the fiber glass wool core
Easy to fabricate: Linacoustic RC duct liner is lightweight and easy to handle
Minimizes pre-installation damage: Linacoustic RC duct liners reinforced coating system is highly resistant to damage that can occur during in-shop handling, fabrication, jobsite shipping and installation
Noise reduction coefficient (NRC): 0.85 (R6)
Factory-applied edge coating edge coating is factory applied to the edges of the liner core, ensuring coverage of the leading edges per NAIMA/SMACNA requirements, shop fabrication cuts may be coated with SuperSeal edge treatment
Air velocity: 6000 fpm (30.5 m/sec)
Water repellency: =6
Conductance: 0.13 Btu/hr.sq-ft.deg F
R-Value: 8 hr.sq-ft-deg F/Btu
Product Documents 
Document TypeDownload Link
Specification Sheet2DL_Specification Sheet (pdf)
SDS2DL_SDS (pdf)
Catalog2DL_Catalog (pdf)
Product Specifications 
Color Black
Coverage 195.8 sq-ft
Domestic/Import Domestic sq-ft
Finish Glass Mat
Length 50 ft
Material Fiberglass
Suitable For Use With Air Conditioning, Heating and Ventilating System
Temperature Rating 250 deg F
Thickness 2 in
Type Flexible
Width 47 in
Certifications ASTM E84|ASTM C 1071 Type I Compliant|ASHRAE 62|Canada
Country of Origin US