Equipment Liner M

Name: Equipment Liner M
Brand: Knauf Insulation

Designed to provide trusted thermal and acoustical performance for HVAC equipment where air erosion resistance is required. This flexible liner is made from fiberglass and ECOSE® Technology. It's naturally brown with a black mat facing adhered to the airstream side that’s treated with an EPA registered anti-microbial agent. The smooth, tough surface helps resist damage during fabrication, installation and operation.

Applications

Certifications

Product Features

Delivers excellent thermal properties for equipment where air erosion resistance is required. It’s designed for systems operating at temperatures up to 250° F (121° C).

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Noise Reduction

Designed with a black mat facing to give the airstream a smooth surface that resists air erosion. It stands strong against systems operating at velocities up to 170 mph — 6,000 ft./min.

ECOSE® Technology

Our patented, bio-based binder is a smarter alternative to using phenol formaldehyde. It’s been foundational in our commitment to sustainability.

Product Details

Technical Data

Technical Data
Property (Unit)	Test	Performance
Corrosiveness	ASTM C665	Does not accelerate corrosion of steel
Corrosion	ASTM C1617	Pass
Air Velocity	ASTM C1071	Maximum 6,000 ft./min. (1,829 m/min.)
Water Vapor Sorption (by weight)	ASTM C1104	Less than 3%
Maximum Service Temperature	ASTM C411	250° F (121° C)
Mold Growth	ASTM C1338, ASTM G21	Pass. The airstream surface mat facing is treated with an EPA-registered anti-microbial agent to aid in the prevention of fungal and bacterial growth
Surface Burning Characteristics (flame spread/smoke developed)	ASTM E84, NFPA 90A and 90B UL 723, CAN S102	UL Classified FHC 25/50

Forms Available

Forms Available
Density	Thickness	Width	Length	Current Minimum (ft²)
1.5 PCF (24 kg/m³)	1" (25 mm)	34"–36" (864 mm–915 mm) 46"–48" (1168 mm–1219 mm) 56"–72" (1422 mm–1829 mm)	100' (30.48 m)	38,000
	1½" (38 mm)		50' (15.24 m)	27,000
	2" (51 mm)		50' (15.24 m)	20,000
2.0 PCF (32 kg/m³)	½" (13 mm)		100' (30.48 m)	54,000
	1" (25 mm)		50' (15.24 m)	31,000
	1½" (38 mm)		50' (15.24 m)	20,000

Thermal Resistance R

Thermal Resistance \| ASTM C518, 75° F Mean Temperature
Density	Thickness	R-Value @ 75° F (24° C)
1.5 PCF (24 kg/m³)	1" (25 mm)	R-4.2
	1½" (38 mm)	R-6.0
	2" (51 mm)	R-8.0
2.0 PCF (32 kg/m³)	½" (13 mm)	R-2.1
	1" (25 mm)	R-4.2
	1½" (38 mm)	R-6.3

Sound Absorption Coefficients

Sound Absorption Coefficients \| ASTM C423, Type A Mounting
Octave Band Center Frequency (cycles/sec.)
Type		125	250	500	1000	2000	4000	NRC
1.5 PCF (24 kg/m³)	1" (25 mm)	0.18	0.28	0.73	0.85	0.91	0.90	0.70
	1½" (38 mm)	0.23	0.50	0.87	0.92	0.93	0.93	0.80
	2" (51 mm)	0.37	0.76	1.02	1.00	0.98	0.92	0.95
2.0 PCF (32 kg/m³)	½" (13 mm)	0.10	0.17	0.43	0.59	0.73	0.75	0.50
	1" (25 mm)	0.25	0.35	0.69	0.89	0.96	1.01	0.70
	1½" (38 mm)	0.27	0.55	0.87	0.99	1.00	0.98	0.85