Sonic Liner (Product description)
Metal Duct Acoustical Insulation
A flexible glasswool blanket faced with an acoustically permeable black woven glass cloth on the airstream surface. A 35 mm overlapping flange is provided on both sides to enable effective sealing.
Applications
- Interior acoustical liner for sheet metal ducts in heating, ventilation and air conditioning duct systems
- Suitable for ducts with air velocities up to 20 m/s

Benefits
- Non-combustible (Tested to SABS 0177 Part V)
- Class I fire index (Tested to SABS 0177 Part III)
- Complies with ASTM E-84 fire and smoke index requirements
- Conforms to SABS 0400 Building code regulations
- Greatly reduces mechanical equipment noise transmission through duct
- Can be factory installed
- Improves thermal performance of ducting
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