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Weatherall Equipment & Instruments Ltd
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CLAREX® U.V. TRANSMISSION FILTER

CLAREX® UV TRANSMISSION FILTER transmits ultra-violet rays at 260nm.

FEATURES:

  • Transmit ultra-violet ray (80% at 300nm).
  • Excellent optical characteristics.
  • No double refraction.
  • Available smooth surface or anti-glare surface
  • Available scratch-resistant.

PRODUCT DESIGNATION:

Grade : "S-0-L" Clear

THICKNESS and SIZE:

Thickness : 0.2mm, 0.3mm, 0.4mm, 0.5mm, 0.8mm, 1.2mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm and 5.0mm
Size : 300 x 450mm and 400 x 550mm
* Available in any shape, cut and printed to the customer's specification.

OPTICAL PROPERTIES:

Transmission from 260nm
Transmit about 80% at 300nm
Transmit about 90% at 350nm
Total Light Transmission 93%
Haze 0.1%
Refractive Index 1.49

SPECTRUM TRANSMISSION CURVES:



APPLICATIONS:

Optical disc substrates, X-ray photoresist, UV-ray photoresist.

PHYSICAL PROPERTIES:

PROPERTIES METHOD UNIT Normal
Grade
Hard Coat
Grade
SPECIFIC GRAVITY ASTM D-792   1.19 1.19
OPTICAL
Refractive Index ASTM D-542   1.49 1.49 (1.54)
MECHANICAL
Elongation ASTM D-638 % 5 5
Tensile Rupture Strength ASTM D-638 kg/cm2 750 650
Flexural Rupture Strength ASTM D-790 kg/cm2 1200 800
THERMAL
Heat Distortion Temperature ASTM D-648 C 110 110
Maximum recommended continuous temperature C 80 80
Coefficient of Thermal Expansion ASTM D-696 cm/cm/C 7 x 10-5 7 x 10-5
Specific Heat ASTM D-638 cal/grC 0.35 0.35
DURABILITY
Heat Resistance 80C x 100hr   No Change No Change
Cold Resistance -40C x 100hr   No Change No Change
Humidity Resistance 60Cx90%x100hr   No Change No Change
Thermal Cycle -40C <> 80C
(10 cycles)
  No Change No Change
ELECTRICAL
Surface Resistivity   W >1016 >1016
PENCIL HARDNESS     2H 6~8H
CHEMICAL
Methyl Alcohol (50%)     No Change No Change
Ethyl Alcohol (50%)     No Change No Change
Soap Aqua Solution     No Change No Change
Toluene     Dissolved No Change
Acetone     Dissolved No Change
Benzene     Swollen No Change
Ethylene Dichloride     Dissolved No Change
ADHESION K-5400     100/100
FLAMMABILITY UL standard >=0.8mm
Thickness
94HB 94HB

* Value provided cannot be guaranteed in your application due to circumstances beyond our control.