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Construction:
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Saveguard Perma-fil EGlass
Wool is manufactured from drawn continuous filament EGlass yarns, that
are cut to the required staple length. The staple fibres are then
processed using traditional textile machinery to open the fibres and
produce a high volume blown wool. Perma-fil Glass Wool's possesses
outstanding thermal and acoustic insulation properties and are used
primarily in automotive exhaust silencer applications.
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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 i.e. starch or silane and will disappear at
temperatures above 200C. Without effecting the performance of the
Glass Fibre.
Untreated EGlass Fibres are
suitable for continuous use at temperatures of up to 600C in exhaust
applications however tensile strength continues to reduce noticeably
as temperatures increase above 400C . |
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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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have a low thermal
conductivity |
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| Technical: |
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Perma-fil
EGlass Wool meets BSAU193a: 1990
The
tests prescribed by BSAU193a: 1990 require that the material withstands
temperatures of 650C without reduction of fibre length, diameter or bulk
density.
The
loss of material mass shall not exceed 10.5% after immersion in a
synthetic exhaust condensate of the following composition
10ml
hydrobromic acid
10ml
sulphuric acid
Distilled
water to make up to 1litre
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| Chemical: |
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EGlass |
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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Woven
Polypropylene Bales of 150 kilo nominal
Polythene
Bags of 20kg
Can
also be supplied as made up acoustic pillows enclosed in a variety
of high temperature fabrics.
Also
available in other glass grades for higher temperatures
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| Typical Applications: |
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Loose
fill for Exhaust Silencer cans
Infill
for acoustic pillows in gas turbine exhaust silencer applications
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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 Companys
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\wools\glass\perma-fil |
.pdf |
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