What Is a High Reflectance Grade?

These are molding materials that allow for high reflectance and high mechanical strength by combining our proprietary LCP with compound technologies.

Features of high reflectance grades

• Excellent heat resistance
  The LED grade has excellent heat resistance because LCP is used as the base polymer. It is ideal as a package material for high-brightness, high-output LEDs since there is almost no loss of reflectance from heat.
• High self-extinguishing properties
  Due to the high limiting oxygen index of the base polymer LCP, it exhibits UL94 V-0 flammability without adding flame retardants.
• Stable moldability
  As with the general grade of LCP, it shows stable moldability in injection molding of thin-walled shapes.
• Low water absorbency
  Because the base polymer, LCP, has the highest level of low water absorption among resin materials, it exhibits excellent moisture absorption reflow characteristics.

SZ6709L Characteristics Table

Table 6-8-1 Characteristics Table of SZ6709L

Item		Test method	Unit	SZ6709L
Molding color tone	L	-	-	91.0
	a			-0.3
	b			5.5
Reflectance	640nm	JIS K7105-1981	%	92
	520nm			90
	460nm			88
Water absorption rate		ISO 62	%	0.02
Specific gravity		ASTM D792	-	1.89
Mold shrinkage	MD	Internal	%	0.17
	TD			0.80
Tensile strength		ASTM D638	MPa	115
Tensile elongation		ASTM D638	%	5.0
Flexural strength		ASTM D790	MPa	140
Flexural modulus		ASTM D790	MPa	11,000
Izod impact strength		ASTM D256	J/m	310
Deflection temperature under load (1.82MPa)		ASTM D648	°C	275
Soldering Heat Resistance		Internal	°C	300

Reflectance and heat resistance of SZ6709L