Glass Fiber Felt

It is a kind of light, elastic product. This product is compounded from fine, soft glass fiber through high-pressure heating.

Product introduction

LMT glass fiber felt is soiled. Each specification has veneer type and no-veneer type. It is a kind of light, elastic product. This product is compounded from fine, soft glass fiber through high-pressure heating. It has excellent properties of heat insulation, sound insulation, wear resistance, easy construction and so on. So as to select right density and thickness, it shall reach to the best effect. Use LMT glass fiber felt is specially purposed for the heat insulation for buildings, industrial and civil walls, roof, as well as the sound insulation for roof.Standard specification

capacity	Kg/m3	10,12,14,16,20,24,32
thickness	mm	25,30,40,50,75,100
size	mm	1200 ×10-20m

effect of heat insulationThis product has good property of heat insulation. Tested by complying with GB10294-88 standard, heat conductive coefficient is not more than 0.043w/mk while average temperature is 70±5°C

glass wool	100mm
wooden material	280m
veneer	350mm
flat glass	1790mm
concrete	3680mm
plasteboard	450mm

The above data shows that glass wool much excellent effect of heat insulation. It is 3 times much more excellent than that of wooden material and is 37 times much more excellent than concrete.Physical Performance

density	permissible variation	thermal conductive coefficient	contracting temperature	average dia	shot content	water content	11%"> burning grade
Kg/m3		W(m.k)	°C	um	%	%	GB5464
10	+2-1	≤ 0.062	≥ 250	5~8	≤0.2	≤1.0	A
12		≤ 0.058
16	± 2
20		≤ 0.053
24		≤ 0.048	≥ 350
28
32	± 3

effect of sound insulation(non-veneer glass fiber felt)

capacity	thickness	center frequency(Hz)
		125	250	500	1000	2000	4000	NRC
16	25	0.12	0.28	0.73	0.89	0.92	0.93	0.70
16	50	0.24	0.77	1.13	1.09	1.04	1.05	1.00
16	75	0.43	1.17	1.26	1.09	1.03	1.04	1.15
16	100	0.73	1.29	1.22	1.09	1.00	0.29	1.15

NRC-noise insulation factorTo improve the rate of sound insulation, thickness shall play more important part than density. It shall have much more excellent effect within 100hz to increase thickness. Therefore, the larger the thickness, the rate of sound insulation 

Glass Fiber Felt