CLAREX® UV Cut Filters

Additional coatings prevent surface scratching and smudging


CLAREX® UV Filters are employed in a wide range of sensing apparatus when precision is critical. Click graph image to enlarge.

CLAREX® UV CUT FILTER - protects displays from ultra-violet rays. There are five types of ultra-violet absorption filters, ranging from 370 nm ~ 480 nm. Available with smooth or non-glare surfaces. Both surfaces are available with scratch resistant coating. High transparency - 92% Total Light Transmission.

  • Excellent optical characteristics
  • No double refraction
  • Excellent weatherability
  • Available smooth surface or anti-glare surface
  • Scratch-resistant grades

APPLICATIONS - Display protectors, optical filters, instrumentation and sensors

THICKNESS - 0.2 up to 5.0mm

SIZE - 400mm x 550mm standard. Custom sizes available upon request.

MACHINING / PRINTING - Available to customer specification.

PHYSICAL PROPERTIES
PROPERTY 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 ºC 110 110
Maximum recommended continuous temperature ºC 80 80
Available with higher temperature ratings on request, 90-95ºC
Coefficient of Thermal Expansion ASTM D-696 cm/cm/ºC 7 x 10-5 7 x 10-5
Specific Heat ASTM D-638 cal/grºC 0.3535 0.35
DURABILITY
Heat Resistance 80ºC x 100hr   No Change No Change
Cold Resistance -40ºC x 100hr   No Change No Change
Humidity Resistance 60ºC x 90% x 100hr   No Change No Change
Thermal Cycle -40ºC <> 80ºC (10 cycles)   No Change No Change
ELECTRICAL
Surface Resistivity   W >1016 >1016
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
+
PENCIL HARDNESS     2H 6~8H
ADHESION K-5400     100/100
FLAMMABILITY
  UL standard >=0.8mm
Thickness
94HB 94HB