PBT/ABS FR K21

● Material shape: granular

● Processing method: injection molding

● Flame retardant grade: V-2

● Material properties: flame retardant heat stable level

● Compliance: UL

● Material characteristics: good workability • Good appearance

● Material use: automotive external parts, automotive internal parts, electrical components, printers

Material Technical Datasheet
FR K21
PROPERTY
Flame retardant thermal stability level
FEATURES		APPLICATIONS
Good processability		Automotive External Parts
Good appearance		Automotive Internal Parts
		Electrical Components and Printers
Properties	Test Standard	Test Condition	Units	Typical Values
Physical Properties
Specific Gravity	ASTM D792	23℃	g/cm³	1.07
Shrinkage Rate Flow	ASTM D995	23℃	%	0.50~0.60
Shrinkage Rate Vertical	ASTM D995	23℃	%	0.60~0.80
Melt index 230°C 5kg	ASTM D1238	23 ℃	g/10min	22
Hardness
Mechanical Properties	Test Standard	Test Condition	Units	Data
Rockwell hardness R scale	ASTM D785			105
Mechanical Properties
Mechanical Properties	Test Standard	Test Condition	Units	Data
Tensile Strength 23°C	ASTM D638	10mm/min	Mpa	45
Elongation 23°C	ASTM D638	10mm/min	%	20
Flexural Strength 23°C	ASTM D790	2.0mm/min	Mpa	65
Flexural Modulus 23°C	ASTM D790	2.0mm/min	Mpa	2100
Cantilever notch impact 23°C	ASTM D256	23 ° C A-notch	J/m	210
Thermal Properties
Thermal Properties	Test Standard	Test Condition	Units	Data
H.D.T	ASTM D648	0.45MPa	℃	95
H.D.T	ASTM D648	1.8MPa	℃	84
Flame Retardancy
Flame Retardancy	Test Standard	Data
Fire Rating Full Color 1.6mm	UL94	V-2
Fire Rating Full Color 3.2mm	UL94	V-2
UL
Flame Retardancy	Test Standard	Data	Units
Fire Rating Full Color 1.6mm	UL94	V-2
Fire Rating Full Color 3.2mm	UL94	V-2
RTI Elec Full color 1.6mm	UL 746B	60	°C
RTI Elec Full color3.2mm	UL 746B	60	°C
RTI Imp Full color 1.6mm	UL 746B	60	°C
RTI Imp Full color 3.2mm	UL 746B	60	°C
RTI Str Full color 1.6mm	UL 746B	60	°C
RTI Str Full color 3.2mm	UL 746B	60	°C