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Impact
Resistance
Resistance To Hail Damage
Damage to glazing materials, particularly those installed in roofs,
occurs when hail storms contain hailstones 20-30mm diameter, having
an impact velocity 21-25mm/sec. When Marlon ST Longlife of thickness
10mm and above is used in roof glazing, it is unlikely that any
cracks will be caused by such hail storms over a wide range of service
temperatures and long service life.
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 Resistance
To Impact
The resistance of Marlon ST Longlife to impact damage is assessed
using the Gardiner Falling Dart Impact Test. Marlon ST Longlife
exhibits excellent resistance to impact damage over a broad service
temperature range and prolonged service life. The fact that this
resistance is superior to that of other glazing materials means
superior resistance to breakage in handling, transport, installation
and during its service life.
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Comparative
Weights
Marlon ST Longlife has a very high stiffness to weight ratio. As the
self weight is therefore very low, support structures do not need
to be quite so heavy as in the case of, for example, glass. Consequently
there are savings to be gained in terms of structure costs as well
as installation and labour savings when Marlon ST Longlife is used. |
Comparative
Weights
Marlon ST Longlife has a very high stiffness to weight ratio. As
the self weight is therefore very low, support structures do not
need to be quite so heavy as in the case of, for example, glass.
Consequently there are savings to be gained in terms of structure
costs as well as installation and labour savings when Marlon ST
Longlife is used.
Comparative Weights Of
Glazing Materials Kg/M2
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Marlon ST Longlife |
Single Glass |
Double Glass |
Twinwall Acrylic |
4 (Twin) |
0.8 |
10 |
20 |
- |
8 (Twin) |
1.5 |
20 |
- |
- |
10 (Twin) |
1.7 |
25 |
- |
- |
10 (Four) |
1.7 |
- |
- |
- |
16 (Triple) |
2.7 |
40 |
- |
5.2 |
16 (Five) |
2.7 |
- |
- |
- |
16 (M) |
2.8 |
40 |
- |
- |
25 (Five) |
3.4 |
50 |
- |
- |
30 (Twin) |
3.5 |
- |
- |
- |
32 (XX) |
3.8 |
- |
- |
6.5 |
32 (Seven) |
3.7 |
- |
- |
- |
35 (XX) |
4.2 |
- |
- |
- |
35 (Seven) |
3.9 |
- |
- |
- |
Related Topics :
Cutting - Recommendations on methods
for cutting "marlon st" sheeting.
Drilling - Steps to be taken to
prevent undue damage to "marlon st" sheet.
Storage - Care when storing "marlon
st" sheeting is essential.
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