The formaldehyde-free environmental noise reduction air duct plate is made of high density formaldehyde-free glass wool and formaldehyde-free binder solidified. The formaldehyde-free environment-friendly air duct plate is divided into three layers from in

Summary： The formaldehyde-free environmental noise reduction air duct plate is made of high density formaldehyde-free glass wool and formaldehyde-free binder solidified. The formaldehyde-free environment-friendly air duct plate is divided into three layers from inside to outside. The outer layer is reinforced aluminum, as its outer protective layer and air barrier: the inner layer is high-density white fiberglass board, mainly used for the insulation and sound absorption performance of the air duct: the inner surface is a layer of white mesh cloth, and is coated with a layer of anti-mold antibacterial properties and flame retardant white acrylic paint, which can inhibit the growth of bacteria and microorganisms.

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The formaldehyde-free environmental noise reduction air duct plate is made of high density formaldehyde-free glass wool and formaldehyde-free binder solidified. The formaldehyde-free environment-friendly air duct plate is divided into three layers from in

Formaldehyde-free environmental noise reduction air duct plate is made of high density formaldehyde-free glass wool and formaldehyde-free binder solidified. The formaldehyde-free environment-friendly air duct plate is divided into three layers from inside to outside. The outer layer is reinforced aluminum, as its outer protective layer and air barrier: the inner layer is high-density white fiberglass board, mainly used for the insulation and sound absorption performance of the air duct: the inner surface is a layer of white mesh cloth, and is coated with a layer of anti-mold antibacterial properties and flame retardant white acrylic paint, which can inhibit the growth of bacteria and microorganisms.

The double density of the edge of the formaldehyde-free environment-friendly air duct plate is pressed into a male and female socket interface in the factory, and the aluminum foil surface covers the entire male and female interface, which is convenient for the fixed connection between the male and female socket interface when the air duct is connected.

Product advantage:

No formaldehyde - After the installation and use of glass wool, formaldehyde will not be released, so it will not cause harm to human health and will not pollute the environment.

Does not contain harmful substances such as ammonia benzene - tasteless, non-toxic, protect human health, thoroughly improve the working environment.

● High strength -- high density glass wool board (80-120kg/m³) The unique two-sided glass fiber reinforced binder curing formed Sandwich structure, strong and powerful, enhance the pressure bearing capacity of the air duct.

Good insulation effect - fine and long fiber, average diameter 5~8 microns, no slag ball. Thermal conductivity less than 0.033W/M' at room temperature; K.

● Sound insulation effect is good - can reduce sound transmission.

● Non-corrosive - will not cause corrosion of pipes and metal parts.

Durability - will not rot, mold, durable.

● Moisture resistance - effectively prevent water vapor propagation.

● Not easy to deform - unlike fragile and flexible materials, the product can maintain its shape well during operation.

● Fire-resistant -- non-combustible.

Physical properties

Performance	Test method	Technical requirements
Fiber off	GB/T16157	None
Formaldehyde release	GB/T17657-2013	…
Maximum operating temperature	UL181	Inside the duct: < 121℃ Outside the duct: < 66℃
Maximum wind speed	UI181 Erosion experiment	30m/s
Static pressure limit	UL181	1000pa
Moisture absorption	ASTM C1104	0.81%
Waterproof		No wetting, no delix softening
Mold resistance	HG/T3950-2007	Mold growth not supported
Fire rating	GB8624	Non-combustible Class A
Antibacterial rate		99%

Thermal properties

	Type 25	Type 30	Type 38
Thermal resistance R (W/ m.K)	0.91	1.07	1.31
Thermal conductivity λ (W/m. K, 25℃)	0.033	0.033	0.033

Acoustic performance

Static insertion loss
Octave band center frequency (HZ)	63	125	250	500	1000	2000	4000	8000
Static insertion loss (dB)	5	9	9	10	24	21	11	7
Frequency (HZ)	250	250	500	500	1000	1000	2000	2000
Sound absorption coefficient (dB)	0.35	0.35	0.70	0.70	0.63	0.63	0.84	0.84

Product category

Specification	Length mm	Width mm	Thickness mm
Type 25	3000/4200	1200	25
Type 30	3000/4200	1200	30
Type 38	3000	1200	38

Sound Guardian formaldehyde-free Environmental protection, energy saving and noise reduction duct leakage resistance test curve

Sound Guardian formaldehyde-free Environmental protection, energy saving and noise reduction duct resistance test curve

Classification:

Formaldehyde Free，Environment & Energy

Keyword： The formaldehyde-free environmental noise reduction air duct plate is made of high density formaldehyde-free glass wool and formaldehyde-free binder solidified. The formaldehyde-free environment-friendly air duct plate is divided into three layers from in

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Formaldehyde-free enhanced energy-saving soundproof air duct

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