PARAMIGHTY™ (PMMA/PC) Multilayer Sheet

New Display Experiences Expanded by Multilayer Sheet Technology

PARAMIGHTY™ is a PMMA/PC multilayer sheet that controls phase difference using proprietary multilayer sheeting technology. Used for in-vehicle displays and HUD protective covers, etc., it contributes to improved visibility and suppression of temperature rise.

Clearer Vision, Even with Polarized Sunglasses

Clear Display Produced by Phase Difference Control

The multi-layer structure of PARAMIGHTY™ reduces blackout and color irregularities when using polarized sunglasses by controlling the phase difference. The system provides a more comfortable environment for using the in-vehicle display.

Potential of multi-layer sheeting technology

For New Applications such as HUD Protective Covers

In addition to display applications, PARAMIGHTY™ can also be proposed as a HUD protective cover. The application of multi-layer sheeting technology also contributes to suppressing temperature rise inside the unit.

Features of PARAMIGHTY™

Adjustment and control of phase difference (retardation)

Effects of PARAMIGHTY™

Improved visibility when using polarized sunglasses
Avoiding blackouts
Reduction of color irregularities

Grade Lineup

3-Layer Sheet

Standard type with both phase difference control and Weatherability

2-Layer Sheet

Thin plate type with excellent heat resistance and low water absorption

Product Lineup

		Mass-produced Goods		Developed Goods
Product Name		MT3LTR	MT220R	MT251R	MT240R
Feature		specification	Low water absorption, high heat resistance	IR cutoff function	FMVSS No.302
Color Tone		clear	clear	clear	clear
Sales Ratio		PMMA/PC/PMMA	Special PMMA/PC	Heat-resistant PMMA/PC	Special PMMA/PC
Board Thickness*	0.5 mm or less	-	-	○	○
Board Thickness*	1.0 to 3.0 mm	○	○	-	-
Total Light Transmittance Adjustment		Smoked specification available	Smoked specification available	-	-
Retardation Adjustment		○	○	○	○
Flammability FMVSS No.302		conform	conform	conform	conform
Impact Resistance		Compatible grades available	○	○	○
Weatherability		○	◎	◎	◎
Performance		○	○	-	-

*Width: 1000-1250 mm

Basic Physical Properties

Test Item	Unit	test procedure	MT3LTR	MT220R	MT251R	MT240R
Total Light Transmittance	％	JIS K7361-1	90	89	80	89
Haze	％	JIS K7136	0.2	0.2	0.2	0.2
Retardation	nm	Kuraray method *1	130±100	140±110	≦50	≦50
Tensile Strength	MPa	Kuraray method *2	60	47	≧40	≧40
Tensile Breaking Strain	MPa	Kuraray method *2	5	3	≧3	≧3
Flexural Strength	MPa	Kuraray method *3	113	111	≧110	≥110
Flexural Modulus	MPa	Kuraray method *3	2,750	2,510	≧2,400	≧2,400
Deflection Temperature Under Load	℃	Kuraray method *3	131	134	≧130	≧130
Coefficient of Linear Expansion	℃^-1	JIS K7197	7 × 10^-5	7 × 10^-5	7 × 10^-5	7 × 10^-5
Pencil Hardness	ー	JIS K5600	2H	2H	2H	2H

The values shown in this table are typical values and are not guaranteed.

1 Test size: 200 mm × 300 mm
2 Test size: 3.0 mmt × 20 mm × 170 mm
3 Test size: 3.0 mmt × 10 mm × 80 mm