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 |
| |
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 |
| 0.080" | 1.00 | 1.04 | 4 |
| 0.093" | 1.00 | 1.04 | 4 |
| 0.118" | 0.97 | 1.04 | 7 |
| 0.177" | 0.93 | 1.04 | 11 |
| 0.236" | 0.90 | 1.04 | 14 |
| 0.375" | 0.83 | 1.03 | 19 |
| 0.500" | 0.77 | 1.03 | 25 |
| Dual Glazed* | 0.45 | 0.49 | 20 |
Winter Heat Loss (BTU/hr.-sq.-°F)
| Thickness | Lexan™ sheet | Glass | % Advantage over Glass |
| 0.080" | 1.10 | 1.16 | 5 |
| 0.093" | 1.08 | 1.16 | 7 |
| 0.118" | 1.05 | 1.16 | 10 |
| 0.177" | 1.01 | 1.15 | 12 |
| 0.236" | 0.96 | 1.14 | 16 |
| 0.375" | 0.88 | 1.11 | 21 |
| 0.500" | 0.82 | 1.09 | 25 |
| Dual Glazed* | 0.43 | 0.49 | 12 |
* two ¼" lites with ½" air space
Lexan™ Sound Transmission
| Thickness | Lexan™ Sheet STC rating | Float Glass STC rating |
| 0.118" | 25 | 23 |
| 0.177" | 29 | - |
| 0.236" | 31 | 27 |
| 0.375" | 34 | - |
| 0.500" | 34 | 32 |
| 1.000" | 39 | - |
| 1.250" | 42 | - |
Lexan™ Light and Energy Transmittance*
Clear Lexan™ % Values
| Thickness | Visible Light | Solar Energy |
| 0.118" | 86 | 89 |
| 0.177" | 85 | 88 |
| 0.236" | 83 | 86 |
| 0.375" | 79 | 84 |
| 0.500" | 75 | 81 |
Grey 713/Bronze 5109 % Values
| Thickness | Visible Light | Solar Energy |
| 0.118" | 50 | 60 |
| 0.177" | 50 | 60 |
| 0.236" | 50 | 60 |
| 0.375" | 50 | 60 |
| 0.500" | 50 | 60 |
Weight of Lexan™ Sheet
| Thickness | Lexan™ Sheet (lbs./ft2) | Glass (lbs./ft2) |
| 0.118" | 0.73 | 1.60 |
| 0.177" | 1.10 | 2.40 |
| 0.236" | 1.46 | 3.20 |
| 0.375" | 2.34 | 4.80 |
| 0.500" | 3.12 | 6.40 |
Lexan™ Cold bending Radii
| Thickness | Recommended Minimum Bend Radius |
| 0.118" | 11.8" |
| 0.177" | 17.7" |
| 0.236" | 23.6" |
| 0.375" | 37.5" |
| 0.500" | 50.0" |
Lexan™ Shading Coefficient
1/4" Thick Lexan™
| Singled Glazed - clear | 1.02 |
| Single Glazed – grey/bronze | 0.79 |
| Dual Glazed – clear/bronze* | 0.67 |
| Tempered Glass Dual Glazed – clear | 0.90 |
* Tinted Lexan sheet, exterior lite, 1/4" air space, clear Lexan sheet interior lite.
Lexan ® Coefficient of Thermal Expansion
| Building Material | Inches/inch/°F |
| Glass | 0.0000050 |
| Aluminum | 0.0000129 |
| Lexan Sheet | 0.0000375 |
| Acrylic | 0.0000410 |
| Steel | 0.0000063 |
| Copper | 0.0000090 |
Title: Lexan™ MR10, 9034, Grey, and Bronze Polycarbonate Sheet Information
Description: Code Compliance, Abrasion Resistance Comparison, U-value, Sound Transmission, Light and Energy Transmittance, Weight, Cold Bending Radii, Shading Coefficient, and Coefficient of Thermal Expansion
Published: 3/31/2009
Last Edited: 1/5/2023
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