Installation Guide

VARIOUS PROPERTIES
LEXAN
™
THERMOCLEAR
™
MULTIWALL POLYCARBONATE SHEET, 02-2016 TECHNICAL MANUAL 21
30
25
20
15
10
5
0
Temperature C
o
-25 0 25 50 75 100
LEXAN
PVC PMMA
Flexural modulus in N/mm x 100
2
Underwriters Laboratories
Continuous-use
Temperature Rating
Softening
Temperature
LEXAN polycarbonate 100°C 145°C
Acrylic 50°C 100°C
PVC 50°C 70°C
Product
Thickness
(mm)
Weight
(kg/m
2
)
LEXAN THERMOCLEAR
sheet
4.5 1.00
6 1.30
8 1.50
10 1.70 - 1.75
16 2.50 - 2.70
20 2.80 - 3.20
25 3.00 - 3.40
32 3.80
40 4.30
45 4.50
50 4.80
55 5.00
LEXAN THERMOCLICK sheet 40 4.00
50 5.15
LEXAN THERMOPANEL
sheet
30 3.60
Table 08: Weight
Table 07: UL Temperature Ratings UL746B
Temperature Resistance
The heat build-up of glazing materials can be seen as a
function of the solar energy absorption of the glazing
material and the solar intensity.
In areas with intense sun radiation, and when high energy
absorbing tinted glazing is installed, heat build-up of
the glazing can be considerable. Calculations and actual
measurements on installed LEXAN THERMOCLEAR sheet in
several projects throughout Europe have shown that sheet
surface temperatures of 100°C can exist.
Dimensional Stability
LEXAN THERMOCLEAR sheet is characterised by its excellent
retention of impact strength and stiffness at elevated tem-
peratures, even over an extended period. LEXAN THERMO-
CLEAR sheet retains 85% of its room temperature flexural
modulus at 80°C.
Continuous Use Temperature
UL Ratings
The U.S.A. Underwriters Laboratories continuous-use
temperature rating can be considered as a reliable indicator
of a thermoplastic’s long-term high temperature perfor-
mance. The most important properties of the thermo-
plastic are tested at various temperatures. Test results are
extrapolated over a period of 10 years and no property may
lose more than 50% of its original value. Table 07 outlines
the UL-continuous use temperatures of typical thermoplas-
tic glazing materials.
LEXAN THERMOCLEAR sheet has a continues-use tempera-
ture of 100°C. At the other end of the scale the minimum
continues-use temperature has been set at -40°C. However,
using LEXAN THERMOCLEAR sheet at lower temperatures is
possible since the embrittlement temperature is as low as
-110°C.
Fire Performance
LEXAN THERMOCLEAR sheet has good fire behaviour charac-
teristics, and receives high ratings in several major European
fire performance tests including EN13501. More detailed
information is available from your local SABIC Service Centre
or authorised dealer.
Weight Factors
LEXAN THERMOCLEAR sheet is an excellent replacement for
the more traditional glazing materials. It is safe and easy to
handle, cut and install and is virtually unbreakable. Its light
weight offers significant savings in terms of transportation,
handling and installation. When compared with 6 mm wired
glass, 10 mm LEXAN THERMOCLEAR sheet offers weight
savings of more than 85%.
LEXAN THERMOCLEAR sheet has shown in many applications
that its lightness and ease of handling have contributed to
significant savings in overall installation costs.
Graph 03: Dimensional stability. Flexural modulus in
N/mm
2
x100