CLAREX® UV Transmission Filters

Transmits ultraviolet rays at 260nm


CLAREX® UV Filters provide excellent optical characteristics - no double refraction. Click graph image to enlarge.

CLAREX® UV TRANSMISSION FILTERS - Transmits ultra-violet rays at 260nm. CLAREX® UV Filters provide extremely accurate transmission specifications.

Product Designation is Grade: "S-O" Clear.

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

APPLICATIONS - Optical disc substrates, UV-cure applications, sterilization filters

THICKNESS - 0.2, 0.3, 0.4, 0.5, 0.8, 1.0, 1.2, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0 and 5.0mm

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

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

MACHINING / PRINTING - Available to customer specification.

PHYSICAL PROPERTIES
PROPERTY METHOD UNIT Normal Grade
SPECIFIC GRAVITY ASTM D-792   1.19
OPTICAL
Refractive Index ASTM D-542   1.49
MECHANICAL
Elongation ASTM D-638 % 5
Tensile Rupture Strength ASTM D-638 kg/cm2 750
Flexural Rupture Strength ASTM D-790 kg/cm2 1200
THERMAL
Heat Distortion Temperature ASTM D-648 ºC 110
Maximum recommended continuous temperature ºC 80
Available with higher temperature ratings on request, 90-95ºC
Coefficient of Thermal Expansion ASTM D-696 cm/cm/ºC 7 x 10-5
Specific Heat ASTM D-638 cal/grºC 0.35
DURABILITY
Heat Resistance 80ºC x 100hr   No Change
Cold Resistance -40ºC x 100hr   No Change
Humidity Resistance 60ºC x 90% x 100hr   No Change
Thermal Cycle -40ºC <> 80ºC
(10 cycles)
  No Change
ELECTRICAL
Surface Resistivity   W >1016
CHEMICAL
Methyl Alcohol (50%)     No Change
Ethyl Alcohol (50%)     No Change
Soap Aqua Solution     No Change
Toluene     Dissolved
Acetone     Dissolved
Benzene     Swollen
Ethylene Dichloride     Dissolved
+
PENCIL HARDNESS     2H
ADHESION K-5400    
FLAMMABILITY UL standard >=0.8mm
Thickness
94HB