Product Description, Applications
The Knauf air handling insulation product line includes flexible Duct Liner E•M for unsurpassed sound control, rigid Plenum Liner, exterior Insulation Board, flexible exterior Duct Wrap, lightweight black mat-faced Eclipse™ Air Duct Board and black mat-faced high performance Air Duct Board-M.

ECLIPSE AIR DUCT BOARD
With Knauf’s unique blackening process, new Eclipse Air Duct Board provides a deeper black surface than other standard boards, minimizing visibility at venting points for a finished appearance. Eclipse’s consistent density provides excellent thermal and acoustical performance as well as making fabrication and installation fast and easy helping to keep any project on schedule. Experience a Total Eclipse with Greenguard™ Certified Eclipse Air Duct Board.

Knauf Eclipse Air Duct board is available with butt or factory-molded shiplap edges in 1", 1 1/2" and 2" (25.4, 38 and 51 mm) thicknesses.

Features, Advantages

• Energy conservation - Low thermal conductivity; minimum heat loss or gain; superior temperature control
• Low cost installation - Easy one-product fabrication and installation; portability
• Noise reduction - Reduces air turbulence and mechanical noise; eliminates sheet metal duct contraction and expansion
• Durability - Superior to coated duct board products; provides extra protection during fabrication, installation and duct cleaning; highly resistant to bio-deterioration
• Porosity - Low leakage; 20% less porous than coated duct board products; less airborne dirt penetration into fibrous matrix; vapor retardant; resistant to fungi and bacteria

Properties, Performance

• Service temperature - ASTM C411; 250 degrees F (121 degrees C)
• Air velocity (max) - UL 181; 5000 ft/s (1524 m/sec); tested to 12,500 ft/s (3810 mpm)
• Water vapor transmission rate - ASTM E96; less than 0.02 perms (1.15 ng/(Pa x s x m²))
• R-value - ASTM C518; 1" (25.4 mm) thick; 4.3 ft² x h x F/Btu (0.76 m² x K/W) at 75 degrees F (24 degrees C)
• Fire resistance - ASTM E84; flamespread, 25; smoke developed, 50

Knauf Air Duct systems meet these requirements:

• ASTM C1136 Type II (FSK facing)
• ASTM D5116
• ASTM G21, G22
• BOCA
• CABO (ICC)
• ICBO
• NFPA 90A and 90B
• California Title 24
• SBCCI
• Greenguard™ Certified
• Corps of Engineers Guide Specifications
• International Mechanical Code