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Perma-fil
E'Glass Needlemat |
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Construction:
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Saveguard Perma-fil E’glass
needlemat has been specifically developed for use in vehicle exhaust
silencer applications. Manufactured from 9 micron filament E’glass
fibres that are specially carded to produce a high volume batt. This is
then mechanically needled to bond the fibres, which results in a
dimensionally stable matt or felt, possessing excellent thermal and
acoustic insulating properties without any chemical binder.
The mechanical bonding system secures the
individual fibres thus eliminating fibre loss via the perforated tubes.
Perma-fil needlemat can be supplied pre rolled as packs on cardboard
mandrels. Perma-fil packs are wrapped in Polythene sleeves for ease of
handling and to reduce any irritation from the glass fibre. We also offer
a complete cutting and die cutting service for more complex shapes.
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| Properties: |
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Glass Yarns have a minimal amount of
surface dressing to assist in processing, this is usually organic ie.
starch or silane and will disappear at temperatures above
200C. Untreated Glass Fabrics are suitable for continuous use
at temperatures of up to 550C higher in exhaust applications however tensile strength continues to
reduce noticeably as temperatures increase above 400C.
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E Glass Fibres are:
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are resistant to oils, solvents and
most chemicals although contact with hydrofluoric acids, strong
alkalis and live steam should be avoided. |
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are non combustible. |
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Colour:
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have a low thermal
conductivity |
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| Technical: |
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| Thermal Conductivity: |
0.078 w/mK 300C mean |
| Loss on Ignition: |
< 1.2% |
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| Chemical: |
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E’Glass |
SiO2 |
54.1% |
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Al2O3 |
15.3% |
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CaO
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17.3%
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MgO
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4.7%
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Na2O
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0.6%
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B2O3
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8.0%
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| Availability: |
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Thickness |
4mm |
6mm |
9mm |
12mm |
18mm |
25mm |
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Weight per m2 150
Kg/m3 |
600 |
900 |
1350 |
1800 |
2700 |
3600 |
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Weight per m2 130
Kg/m3 |
520 |
780 |
1171 |
1560 |
2340 |
3125 |
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Roll Length |
50 |
50 |
30 |
20 |
15 |
10 |
| Density: |
Available
in a range of densities from 100 -160 Kg/m3 |
| Width: |
100cm
standard ( others available on request) |
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| Typical Applications: |
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Acoustic insulation media for exhaust
silencers
Heatshields
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The information on this
Data Sheet is strictly for guidance only and while provided in good faith
cannot be guaranteed. The company reserves the right to alter or update
this data as and when additional information is received. The Company’s
products are used in a wide range of applications over which the Company
has no control therefore the Company excludes all conditions or warranties
whether expressed or implied as to the fitness of the product for any
particular purpose. Customers must establish product suitability via their
own tests
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Issue No: |
1 |
Page: 1 of 1 |
Dated: |
13th July 1999 |
File Ref: |
prodata\felts\glass\perma-fil |
.pdf |
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