Formaldehyde-free environmentally friendly glass wool felt

Summary： Formaldehyde-free environmentally friendly glass wool felt is a flexible mat product made by bonding fine glass fibers together with acrylic thermosetting adhesives, which are then heated and pressed.

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Product Consult

Formaldehyde-free environmentally friendly glass wool felt is a flexible felt product made by bonding slender glass fibers together with an acrylic thermosetting adhesive, which is heated and pressed.

Product Advantages

Free of harmful substances such as formaldehyde, ammonia, and benzene

Good thermal insulation effect

Durable noise reduction

Non-corrosive

Strong elasticity

Good flexibility

Class A non-combustible

Product Applications

Wood structure buildings - residential and commercial buildings

Metal structure buildings - commercial buildings, steel structure factories

Ceiling suspension systems - backfill treatment for newly built ceilings or ceiling systems in renovated buildings

Inside buildings - can provide thermal insulation and soundproofing treatment for combinations of interior walls, floors, ceilings, and basements.

Air conditioning systems - insulation of air supply hoses and duct flanges, thermal insulation and sound absorption for various tanks and equipment.

Product Types

Strip felt - used for standard and other wall cavities, can be installed faster compared to roll products.

Roll felt - can be cut to any size for wall cavities, installed in any part of the building, especially in long and unobstructed areas, such as steel structure roofs, grooves for electrical conduits, and water pipes.

Product Specifications　　

Product Types	Density (kg/m³)	Thickness (mm)	Length (mm)	Width (mm)
Roll felt	10~48	50, 75, 100	5500, 11000, 20000	1200
Strip felt	10~48	50, 75, 100	1200	600

Physical Performance Indicators　　

Performance	Testing Method	Technical Requirements
Density	GB/T5480.3	10~48kg/m³
Average fiber diameter	GB/T5480.4	5 to 8 micrometers
Water repellency	GB/T10299	≥98%
Thermal weight shrinkage temperature	GB/T11835-1998 Appendix D	≥250C
Slag ball content	GB/T5480.5	0%
Fire performance	GB8624	Non-combustible Class A
Corrosion resistance	ASTM C665	Meets requirements
Mold resistance	HG/T3950-2017	No mold growth
Moisture absorption rate	GB/T5480.7	≤5%

Thermal insulation performance / thermal conductivity (25℃)　　

Density kg/m³	10	12	14	16	20	24	32
Thermal conductivity w / mk	0.046	0.043	0.041	0.040	0.038	0.036	0.035

R-thermal resistance value (25℃)㎡K/W　　

Thickness Density	10	12	14	16	20	24	32
50	1.08	1.16	1.22	1.25	1.32	1.39	1.43
75	1.63	1.74	1.83	1.88	1.97	2.08	2.14
100	2.71	2.33	2.44	2.5	2.63	2.78	2.86

☆Thermal resistance = Thickness (m) / Thermal conductivity

Sound absorption coefficient　　

Density (kg/m³)	Thickness (mm)	Noise coefficient
10, 12	50	0.6~0.8
10, 12	75, 100, 150	>0.8
16, 20	25	0.4~0.6
	40, 50	0.6~0.8
	75, 100	>0.8
24, 28, 32	25, 40	0.6~0.8
24, 28, 32	50, 75, 100	>0.8