CLAREX Super Hard Coat Sheet (RHG)

Super Hard Coat Sheet (RHG)

CLAREX Super Hard Coat (RHG) sheet is the Sell-Cast PMMA sheet with 9H pencil hardness on front and/or back surface.

Features

• One of the best Surface Hardness in the plastic sheet industry. (Pencil Hardness over 9H)
• High transparency.
• No birefringence (or double refraction) so it is better for optical sensor application.
• Excellent light resistance.
• Many kinds of substrate colors to choose from. (Color Matching is also available)
• Ultra-smooth sheet surface.
• Surface texture can be changed. (Flat/Glossy surface to Non-Glare surface texture)

Application

Optical Filters / Sensor Filters / Display Protection Window / etc.

Thickness

0.5mm～5.0mm

General Properties

Properties	Test Method		Unit	Hard Coat Grade	Super Hard Coat Grade
	JIS	ASTM		RH20 001	RHG20 001
Mechanical
Pencil Hardness	K5600	–	H	over 6	over 9
Coating Adhesion	**1		–	100/100
Abrasion Resistant	**2		–	No scratch
Optical
Total Light Transmittance	K7361-1	D-1003	%	92
Haze	K7136	D-1003	%	0.1	0.2
Thermal
Heat Distortion Temperature	K7191-2(A)	D-648	℃	110
Coefficient of Thermal Expansion	K7197	D-696	cm/cm℃	7×10-5
Miscellaneous
Water Absorption (24hr)	K7209	D-570	%	0.3

• These are our experimental measured values in Flat 001 transparent sheet. Specifications are subject to change at any time. (if not otherwise specified, values measured in 3.0mm thick)
• Spectral Transmission measured with NDH4000 Nippon Denshoku Industries Co., Ltd.

**1：Cross-cut Test (10×10 grid)
**2：Steel Wool Scratch Test (#0000 steal wool / 1.0kg x 10 round)

Optical Data

Hard Coat Sheet – RH20 Flat 001