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PROPERTIES OF Plexiglas® SHEET
Breakage Resistance
(Falling Projectile Impact Strength)
The figures below show that various thicknesses of Plexiglas® sheet have greater impact resistance than various types of glass when impacted with a hard object, such as a stone. The test samples were 12" x 12", with edges loosely clamped.
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Table 1: Impact Resistance of Plexiglas® Sheet and Other Materials |
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Material |
Nominal Thickness |
Weight of
Free Falling
Steel Ball (lb) |
F50 Energy
to Break
(ft-lb) |
|
(in) |
(mm) |
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Plexiglas® Sheet
Plexiglas® Sheet
Plexiglas® Sheet
Plexiglas® Sheet |
.098
.118
.177
.236 |
2.5
3.0
4.5
6.0 |
0.25
2.00
2.00
5.00 |
3.0
4.7
11.1
18.1 |
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Single-Strength Window Glass
Double-Strength Window Glass
Plate Glass
Plate Glass |
.100
.125
.187
.250 |
|
0.25
0.25
0.25
0.25 |
0.8
1.8
2.0
1.0 |
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Laminated Safety Glass
Rough Wire Glass
..........Impact Rough Side
..........Impact Smooth Side
Polished Wire Glass |
.250
.250
.250
.250 |
0.25
0.25
0.25
0.25 |
1.1
2.2
0.2
0.4 |
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