What do you expect from your opti-
cally clear resin? As you may already
know, the Si-O-Si bond (bond energy:
101 kcal/mL, silicone) is stronger than
the C-C bond (83.2 kcal/mL, acrylic).
Consequently, silicone exhibits excel-
lent thermal stability over a wide range
of temperatures, giving your products
a potential advantage over acrylics in
hostile environments.
The LUMISIL
®
Thermal Series from
WACKER oers high transparency, low
haze and low yellowness. Moreover,
these properties show very little change
WACKER LUMISIL
®
PRODUCTS FOR
OPTICAL BONDING – EXCELLENT
RELIABILITY WITH SILICONE
Thermally Curing Silicone OCR for the LUMISIL
®
Thermal Series
CREATING TOMORROW’S SOLUTIONS
LUMISIL
®
is a registered trademark of Wacker Chemie AG.
OPTICAL BONDING I LUMISIL
®
THERMAL SERIES
Product Information
Properties Unit LUMISIL
®
100 LUMISIL
®
102 LUMISIL
®
102FC LUMISIL
®
105 SilGel
®
612 PT
Product Data, Uncured
Color Optically clear Optically clear Optically clear Optically clear Optically clear
Viscostiy [mPa·s] A: 530
B: 420
A: 2,050
B: 1,900
A: 2,000
B: 2,300
A: 4,950
B: 4,500
A: 1,000
B: 1,000
Product Data, A+B Part
Mixing ratio 1 : 1 1 : 1 1 : 1 1 : 1 1 : 1
Pot life at 23 °C [hr] 3 3 0.4 3 0.5
Viscosity of mix [mPa·s] 480 1,900 2,200 4,800 1,000
Gel timer at 65 °C [min] 13 11 3.7 10 3.7
Curing time at 65 °C (T
90
) [min] 60 46 10 38 20
Product Data, Fully Cured
Density at 23 °C [g/cm
3
] 0.98 0.98 0.98 0.98 0.97
Hardness (Penetration) [mm/10] 50 50 50 50 50
Pull test [Kgf/cm
2
] 2.5 3.5 3.5 3.5 2.2
Transmittance* [%], Minolta CM-5 > 99 > 99 > 99 > 99 > 98.8
Haze* [%] < 0.2 < 0.2 < 0.2 < 0.2 < 0.1
Yellowness index* < 0.2 < 0.2 < 0.2 < 0.2 < 0.2
Refractive index at 23 °C 1.41 1.41 1.41 1.41 1.41
*Silicone thickness: 300 μm, double sided with 0.7 mm LCD bare glass (Corning Eagle XG)
in reliability tests conducted under severe
conditions. The product can fully meet
your display requirements for indoor or
outdoor uses such as portable displays,
public information displays or navigation
devices.
Advantages of the LUMISIL
®
Thermal
Series
• Self-leveling due to low viscosity
• Fast cure at low temperatures
(below 70 °C)
• Good optical clarity
• Excellent reliability
• Excellent thermal stability
• Low shrinkage
Applications
• Touch-screen panels
• Large-screen displays
• Public information displays
• Navigation devices
• Production of optical damping elements
CREATING TOMORROW’S SOLUTIONS
7133e/08.16 replaces 7133e/11.14
Wacker Chemie AG, 81737 München, Germany, Tel. +49 89 6279-1741, Fax +49 89 6279-1770,
info@wacker.com, www.wacker.com, www.wacker.com/socialmedia
The data presented in this information sheet are in accordance with the present state of our knowledge but do not absolve the user from carefully checking all supplies immediately on
receipt. We reserve the right to alter product constants within the scope of technical progress or new developments. The recommendations made in this information sheet should be
checked by preliminary trials because of conditions during processing over which we have no control, especially where other companies’ raw materials are also being used. The
information provided by us does not absolve the user from the obligation of investigating the possibility of infringement of third parties’ rights and, if necessary, clarifying the position
Recommendations for use do not constitute a warranty, either express or implied, of the fitness or suitability of the product for a particular purpose.
85 °C 60 °C / 90%
85 °C / 85% -40 °C
85 °C 60 °C / 90%
85 °C / 85% -40 °C
Yellowness Index Haze
0.6
0.5
0.4
0.3
0.2
0.1
0
0.6
0.5
0.4
0.3
0.2
0.1
0
0h 1000h 2000h 0h 1000h 2000h
[%]
85 ��C 60 °C / 90%
85 °C / 85% -40 °C
93
92.5
92
91.5
91
90.5
90
0h 1000h 2000h
[%]
Transmittance
Optical Properties in Reliability Test
(2000h)
1,E + 05
1,E + 04
1,E + 03
-50 0 50 100 150
Temperature [°C]
[Pa]
G’
Storage Modulus vs. Temperature
Thermal Stability of Silicone OCR
0h 1000h 2000h
91.94 91.64 91.58
91.94 91.9 91.84
91.94 91.69 91.6
91.94 91.96 91.85
0h 1000h 2000h
0.16 0.35 0.41
0.16 0.23 0.26
0.16 0.33 0.44
0.16 0.17 0.26
0h 1000h 2000h
0.09 0.07 0.06
0.09 0.12 0.12
0.09 0.17 0.18
0.09 0.11 0.11