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Optical
Applications
United Adhesives Inc. provides innovative solutions for
optoelectronics with optical-grade epoxy and silicone encapsulants,
coatings, adhesives, and sealants. They are applied in bonding
and potting fiber-optic cables, connectors and terminations,
LCD backlighting, displays, traffic and other lightings,
upgrading the vibration and shock resistance of electro-optic
assemblies, cementing and coating optical parts, potting
LED devices, optical replications, and coating or encapsulating
a wide variety of electro-optic and laser components.
They have the following features.
- Excellent light
transmission characteristics.
- Superior non-yellowing
properties or anti-yellowing
- Silicone based system
can cure to low-stress elastomer
- Resistance to ozone
and UV Degradation
- Broad operating
at temperatures of -40 to 180°C.
- High adhesion, high
purity, moisture resistance
- Reworkable for silicones
Click the name of the adhesive in following Table to access
its technical datasheet (TDS) in PDF file.
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Name
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Features / Advantages
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Rheology
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Hardness / Modulus
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Refractive Index
(nD @ 25C)
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% Transmission
(350 nm to 1000 nm)
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Flexible Strength (FS) or
Tensile Strength (TS)
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Cure Profile
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OE1582
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Optically clear epoxy. 2-parts,
cures at room temperature or can be accelerated at elevated
temperatures. Anti-yellowing formulation
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2:1 mixing,
7240 cPs
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70
(Shore D)
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1.564
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95% to 99%
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F.S. = 120 MPa
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80C 60 min
125C 15 min
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OE1581
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Optically clear epoxy. 1-part ready to apply, cures at elevated
temperature. Anti-yellowing formulation
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1-part liquid
3470 cPs
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70
(Shore D)
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1.564
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95% to 99%
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F.S. = 120 MPa
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85C 2 hrs
125C 30 min
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OP4036
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Optically clear silicone tough rubber, 2-part ready to apply. Transparency,
non-yellowing. Compliance to thermal stress
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1:1 mixing,
4,900 cPs
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40
(Shore A)
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1.41
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97% to 99%
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N/A
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80C 10 min
65C 20min
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OP4035
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Optically clear silicone tough rubber, 1-part ready to apply. Transparency,
non-yellowing. Compliance to thermal stress
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1-part liquid
4,600 cPs
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35
(Shore A)
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1.41
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97% to 99%
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N/A
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125C 60
min
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