CLAREX Hard Coat Sheet

CLAREX Hard Coat is applied to the either side of the Cell-Cast PMMA sheet to provide scratch resistance.

  • Clarex Optical Grade Precision Sheet with a Hard Coat applied on one (RH10) or both sides (RH20).
  • Pencil Hardness of 6-8H.
  • Light transparency of 92-93%.
  • No birefringence or double refraction, ideal for optical sensor cover application.
  • Outstanding optical characteristics.
  • Close tolerance and  uniform thickness.
  • Ultra smooth glass-like surface.
  • Excellent weather resistance.
  • Non-Glare surface texture can also be applied
  • Anti-Reflection Coating surface treatment also available for improved light transmission  
  • Many standard substrate colours available or colour matching also available.
  • Versatile substrate suitable for laser cutting, milling, printing, forming etc.
Clarex-Non-Glare-(NG)-Sheet

CLAREX Hard Coat Sheet Product Specification Data:

  • Optical Filters
  • Sensor Filters
  • Display Protection Window

* Machining and printing available to customer specification. Please see out Machining and Fabrication page or Contact Us for more information

Please see below for a selection from our standard colour range. Please note we offer colour matching available to meet your requirements, contact us to learn more.

  • 0.2mm to 5.0mm (in 0.1mm increments)

  • Please contact us if you require another thickness.

  • 400 x 550mm
PropertiesMethodUnitNormal GradeHard Coat Grade
Specific GravityASTM D-7921.191.19
Optical
Refractive IndexASTM D-5421.491.49 (1.53)
Mechanical
ElongationASTM D-638%55
Tensile Rupture StrengthASTM D-638MPa7045
Flexural Rupture StrengthASTM D-790MPa11860
Impact Strength (Izod)ASTM D-256KJ/m22-----
Rockwell HardnessASTM D-785100-----
Thermal
Heat Distortion TemperatureASTM D-648110110
Maximum Recommended Continuous Temperature8080
Coefficient Of Thermal ExpansionASTM D-696cm/cm/℃7 x 10-57 x 10-5
Coefficient Of Thermal ConductivityASTM D-177W/m℃0.170.17
Specific HeatJ/℃1.471.47
Durability
Hot Resistance80℃ x 100hrNo ChangeNo Change
Cold Resistance-40℃ x 100hrNo ChangeNo Change
Humid Resistance60℃ x 90% x 100hrNo ChangeNo Change
Thermal Cycle-40℃ ⇔ 80℃No ChangeNo Change
(10 cycles)
Electrical
Surface ResistivityASTM D-257Ω>1016>1016
Volume ResistivityASTM D-257Ωcm>1016>1016
Pencil Hardness2~3H6~8H
Chemical
Methyl Alcohol (50%)No ChangeNo Change
Ethyl Alcohol (50%)No ChangeNo Change
Soap Aqua SolutionNo ChangeNo Change
TolueneDissolvedNo Change
AcetoneDissolvedNo Change
BenzeneSwollenNo Change
Ethylene DichlorideDissolvedNo Change
AdhesionK-5400100/100
Ethylene DichlorideDissolvedNo Change
FlammabilityUL standardThickness ≧0.8mm94HB94HB

Hard Coat Sheet - RH20 Flat 001

 

 

 

Clarex Hardcoat Precision Optical Sheet(PDF format) (Opens in a new window)

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