Lexan ® Information
Lexan ® Code Compliance
The Lexan ® Polycarbonate MR10 and 9034 sheets meet the following Codes.
|
Code |
Listing/Standard sheet |
|
Model Bldg Codes BOCA 92-15 ICBO3286 SBCCI 9418(1)
Dade County 94-0203.02 |
Approved Plastic Material for light transmitting applications
Minimum thickness .080" |
|
Underwriters Laboratories |
Burglary-resisting Glazing Standard 972
Minimum thickness .080" |
|
CPSC:16
CFR 1201, I, II
ANSI Z97.1 |
Meets Safety for Architectural Glazing materials categories I & II |
|
Horizontal Burn Rate |
CC 1/ASTM D635 |
Code Compliance Comparison (Lexan ® MR10 Sheet)
|
|
Test Method |
Uncoated Polycarbonate
(?% Haze) |
Lexan MR10 Sheet
(?% Haze) |
Glass
(?% Haze) |
|
Taber Abrasion 100 Cycles |
ASTM D1044
Z26.1 |
35.0 |
3.0 – 4.5 |
0.5 |
|
Falling Silica Carbide 1600 grams |
Z26.1 |
30.0 |
5.0 – 8.0 |
15.0 – 20.0 |
|
GE Brush Abrasion Tester |
One hour harsh conditions* |
30.0 |
3.0 |
1.0 |
* Abrasive water mixture of sandy clay screened through 100 mesh screen and continuously applied to brush water.
Lexan ® U-value Comparison
Summer Heat Gain (BTU/hr.-sq.-°F)
|
Thickness |
Lexan sheet |
Glass |
% Advantage over Glass |
|
.080"
.093"
.118"
.177"
.236"
.375"
.500"
Dual Glazed* |
1.00
1.00
.97
.93
.90
.83
.77
.45 |
1.04
1.04
1.04
1.04
1.04
1.03
1.03
.49 |
4
4
7
11
14
19
25
20 |
Winter Heat Loss (BTU/hr.-sq.-°F)
|
Thickness |
Lexan sheet |
Glass |
% Advantage over Glass |
|
.080"
.093"
.118"
.177"
.236"
.375"
.500"
Dual Glazed* |
1.10
1.08
1.05
1.01
.96
.88
.82
.43 |
1.16
1.16
1.16
1.15
1.14
1.11
1.09
.49 |
5
7
10
12
16
21
25
12 |
* two ¼" lites with ½" air space
Lexan ® Sound Transmission
|
Thickness |
Lexan Sheet STC rating |
Float Glass STC rating |
|
.118"
.177"
.236"
.375"
.500"
1.0"
1.25" |
25
29
31
34
34
39
42 |
23
-
27
-
32
-
- |
Lexan ® Light and Energy Transmittance*
Clear Lexan % Values
|
Thickness |
Visible Light |
Solar Energy |
|
.118"
.177"
.236"
.375"
.500" |
86
85
83
79
75 |
89
88
86
84
81 |
Grey 713/Bronze5109 % values
|
Thickness |
Visible Light |
Solar Energy |
|
.118"
.177"
.236"
.375"
.500" |
50
50
50
50
50 |
60
60
60
60
60 |
Weight of Lexan ® Sheet
|
Thickness |
Lexan Sheet
(lbs/ft2) |
Glass
(lbs/ft2) |
|
.118"
.177"
.236"
.375"
.500" |
.73
1.10
1.46
2.34
3.12 |
1.60
2.40
3.20
4.80
6.40 |
Lexan ® Cold bending Radii
|
Sheet Thickness (in.) |
Recommended Minimum
Bend Radius (in.) |
|
.118"
.177"
.236"
.375"
.500" |
11.8"
17.7"
23.6"
37.5"
50.0" |
Lexan ® Shading Coefficient
1/4" Thick Lexan
|
Singled Glazed - clear |
1.02 |
|
Single Glazed – grey/bronze |
.79 |
|
Dual Glazed – clear/bronze* |
.67 |
|
Tempered Glass Dual Glazed – clear |
.90 |
* Tinted Lexan sheet, exterior lite, ¼" air space, clear Lexan sheet interior lite.
Lexan ® Coefficient of Thermal Expansion
|
Building Material |
Inches/inch/°F |
|
Glass
Aluminum
Lexan Sheet
Acrylic
Steel
Copper |
.0000050
.0000129
.0000375
.0000410
.0000063
.0000090 |
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