KKPC Kuhmo HFH 403 Flame Retarded HIPS

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KKPC Kuhmo HFH 403 Flame Retarded HIPS
Categories:	Polymer; Thermoplastic; Polystyrene (PS); Polystyrene, Flame Retardant
Material Notes:	Key features: Low flammable V-2 grade. Common Uses: TV and VCR housing. HIPS is a functional resin made by copolymerization of styrene monomer and PBR. It shows excellent balance between impact-resistance and heat-resistance. Data provided by Korea Kumho Petrochemical Co., Ltd.
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Physical Properties	Metric	English	Comments

Density	1.10 g/cc	0.0397 lb/in³	ASTM D792
Water Absorption	0.050 %	0.050 %	24 hr immersion; ASTM D570
Linear Mold Shrinkage	0.0030 - 0.0060 cm/cm	0.0030 - 0.0060 in/in	ASTM D955
Melt Flow	10 g/10 min	10 g/10 min	ASTM D1238

Mechanical Properties	Metric	English	Comments
Hardness, Rockwell M	65	65	ASTM D785
Tensile Strength, Ultimate	24.5 MPa	3560 psi	ASTM D638
Elongation at Break	80 %	80 %	ASTM D638
Flexural Yield Strength	42.1 MPa	6110 psi	ASTM D790
Flexural Modulus	2.25 GPa	327 ksi	ASTM D790
Izod Impact, Notched	1.23 J/cm @Thickness 3.20 mm	2.30 ft-lb/in @Thickness 0.126 in	ASTM D256

Electrical Properties	Metric	English	Comments
Volume Resistivity	1.00e+16 ohm-cm	1.00e+16 ohm-cm	ASTM D257
Dielectric Constant	2.6	2.6	ASTM D792
Dielectric Strength	17.7 kV/mm	450 kV/in	ASTM D149

Thermal Properties	Metric	English	Comments
Deflection Temperature at 1.8 MPa (264 psi)	80.0 °C	176 °F	unannealed; ASTM D648
	90.0 °C	194 °F	annealed; ASTM D648
Vicat Softening Point	98.0 °C	208 °F	ASTM D1525
Flammability, UL94	V-2 @Thickness 1.60 mm	V-2 @Thickness 0.0630 in
	V-2 @Thickness 3.20 mm	V-2 @Thickness 0.126 in

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PKKPCS24 / 48830

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