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Glass wool felt

  • Introduction
  • Parameters

FUERDA glass wool is made by adopting unique centrifugal technology and adding environmental adhesives of thermosetting resins-based into molten glass fibrosis. It is a kind of elastic glass fiber product made of glass fiber with diameter of only a few microns, and we can also choose moisture-proof facing on-line compound according to customers' requirements. Because of a large number of tiny air interspaces, it has the functions of heat insulation, sound absorption, safe guarding and etc, so it is the best materials of heat insulation and sound absorption in construction.


Distinctive advantages: 
 •  Unique technology; rebound degree after compressive packing is up to 99.2%.
 •  Soft and long glass fibers can maximally lessen flying catkins in the construction.
 •  Sound absorption and noise reduction; it can effectively prevent sound from spreading.
 •  Grade A1 incombustible materials.
 •  Easy for construction; cutting at will.
 •  Antisepsis, ageing resistance, and anticorrosion, ensuring a healthy environment.
 •  Low moisture absorption; stable physical properties.


Scope of application:
It is widely used for heat insulation and sound absorption in industrial workshops, warehouses, public facilities, exhibition centers, shopping malls, and a variety of indoor playgrounds, sports stadiums and etc.


Product specifications:
density(kg/m3)

width(mm)

thickness(mm)

length(m)

packing/roll

10-48

600

25-200

5-30

2roll

10-48

1100

25-200

5-30

1roll

two-roll overlapping

10-48

1150

25-200

5-30

1roll

two-roll overlapping

10-48

1200

25-200

5-30

1roll

two-roll overlapping

10-48

1250

25-200

5-30

1roll

two-roll overlapping

We can also offer other specs of products. Welcome to contact us!
A variety of moisture-proof facings can be stuck on the surface of glass wool.



Changing table of density and thermal conductivity:
10kg-48kg(partial)
density(kg/m3) thickness(mm) width(m) thermal conductivity(W/m.k) thermal resistance(m2.K/W)
10 50 1.2 0.044 1.14
10 75 1.2 0.044 1.70
10 100 1.2 0.044 2.27
12 50 1.2 0.043 1.16
12 75 1.2 0.043 1.74
12 100 1.2 0.043 2.33
14 50 1.2 0.041 1.33
14 75 1.2 0.041 1.83
14 100 1.2 0.041 2.44
16 50 1.2 0.039 1.28
16 75 1.2 0.039 1.92
16 100 1.2 0.039 2.56
24 25 1.2 0.036 0.69
24 40 1.2 0.036 1.11
24 50 1.2 0.036 1.39
32 25 1.2 0.034 0.74
32 40 1.2 0.034 1.18
32 50 1.2 0.034 1.47
48 25 1.2 0.033 0.76
48 40 1.2 0.033 1.21
48 50 1.2 0.033 1.52
We can also offer other specs of products. Welcome to contact us!


Packing:
All of FUERDA glass wool felts adopt transparent water-proof packing for convenient direct-viewing. To meet the need of requirements of logistics distribution, the products adopt new technology in compression and packing strength and etc. Compression ratio is 1:8.4.
High rebound degree reflects FUERDA's professional technology. Also we accept OEM for different brands of products based on requirements of customers all over the world.


Technical Parameters
item unit index measured value remarks
bulk density kg/m3 10-96 10-96 GB/T 13350-2000
average diameter of fibers m < 8.0 4.0-6.0 GB/T 13350-2000
moisture resistivity % > 98 > 98.5 JISA9512-2000
thermal conductivity W/m.k 0.049-0.042 0.045-0.032 GB/T 13350-2000
incombustibility   incombustible up to standard (Grade A) GB/T 13350-2000
sound absorption coefficient     1.03product reverberation positioning 24kg/m3 2000HZ GB/J47-83
Max. working temperature 400 410 GB/T 13350-2000


Physical Properties
shrinkage temperature of heat load GB/T11835-1998 250-400
corrosion resistance ASTM C665 no chemical reaction
mildew resistance ASTM C665 mildewproof
performance experimental method technical requirements
moisture absorption ASTM C1104
GB5480.7-87
3% of weight (49, relative humidity 90%)
5% of weight (49, relative humidity 90%)
moisture permeability ASTM E96
GB/T17146-1997
Max. 0.013g/24h • m2 • mercury/mm
combustibility UL723
ASTM E84
CAN/ULC S-102
GB8624
flame spreading:25
fumes spreading:50
Grade A incombustible material


R-thermal resistance value

thickness (mm) / bulk density (kg/m3)

12

14

16

20

24

50

1.22

1.32

1.36

1.43

1.47

75

1.83

1.97

2.03

2.14

2.21

100

2.44

2.63

2.70

2.86

2.94

R-thermal resistance value= thickness / thermal conductivity (unit: m2/W)
conversion formula of British thermal resistance:1h • ft2 • ¨H/Btu=5.678m2/w
Data Sources: test report of National Supervision and Test Center for Product Quality of glass fiber products.

Design of sound absorption
The requirements of buildings on sound absorption should be calculated according to the following acoustical property of glass wool felt to determine product specifications:
Sound absorption coefficient (glass wool felt with facing)
bulk density (kg/m3) average thickness
(mm)
facing type testing and
installation method
center frequency of octave band (Hz)
125 250 500 1000 2000 4000 NRC
16 50 sandwich enhanced aluminum foil A 0.23 0.80 1.25 0.86 0.42 0.26 0.85
16 75 sandwich enhanced aluminum foil A 0.50 1.18 1.20 0.72 0.42 0.25 0.90
16 100 sandwich enhanced aluminum foil A 0.64 1.30 1.21 0.75 O.48 O.28 0.95
16 125

PVC facing

A 1.06 1.22 0.93 0.83 0.57 0.34 O.90
16 125 PVC facing A 1.04 1.23 0.91 O.78 0.49 O.28 0.85
16 125 PVC facing A 1.07 1.17 0.83 0.63 0.35 0.2 O.75


Testing and installation method A of noise reduction coefficient:Heat insulation materials are tightly stuck on rigid surface of brick wall or sth similar.
Sound absorption coefficient (glass wool felt without facing)
bulk density (kg/m3) average thickness (mm) testing and
installation method
center frequency of octave band(Hz)
125 250 500 1000 2000 4000 NRC
16 50 A 0.24 0.77 1.13 1.09 1.04 1.05 1.00
16 75 A 0.43 1.17 1.26 1.09 1.03 1.04 1.15
16 100 A 0.73 1.29 1.22 1.06 1.OO 0.92 1.15


Testing and installation method A of noise reduction coefficient:Heat insulation materials are tightly stuck on rigid surface of brick wall or sth similar.
Sound insulation coefficient (unit: db)
roofing structure structure type 125 250 500 1000 2000 4000 STC
no glass wool 12 13 19 24 30 32 24
F10 glass wool 12 16 26 37 45 49 29
F19 glass wool 13 20 30 41 49 51 32
double-layer R13 glass wool, two-directional and double-layer laying. 14 24 34 44 53 56 36
structure type no glass wool 12 14 19 19 20 27 21
F10 glass wool 13 16 25 32 37 46 28
F13 glass wool 13 17 26 33 36 47 29
R13 glass wool + vertical steel joist + plasterboard 26 40 51 60 64 65 50
R13 glass wool + vertical steel joist + plasterboard + R11 glass wool filling 31 43 55 68 73 75 54
STC-testing and installation method of sound insulation coefficient • ASTM E90,unit of R in the above table :h • ft2 • F/Btu

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