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	Original Value	Comments

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

Mechanical Properties	Original Value	Comments
Hardness, Rockwell M	65	ASTM D785
Tensile Strength, Ultimate	250 kg(f)/cm²	ASTM D638
Elongation at Break	80 %	ASTM D638
Flexural Yield Strength	6110 psi	ASTM D790
Flexural Modulus	327000 psi	ASTM D790
Izod Impact, Notched	2.30 ft-lb/in @Thickness 3.20 mm	ASTM D256

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+16 ohm-cm	ASTM D257
Dielectric Constant	2.6	ASTM D792
Dielectric Strength	450 V/mil	ASTM D149

Thermal Properties	Original Value	Comments
Deflection Temperature at 1.8 MPa (264 psi)	80.0 °C	unannealed; ASTM D648
	90.0 °C	annealed; ASTM D648
Vicat Softening Point	98.0 °C	ASTM D1525
Flammability, UL94	V-2 @Thickness 1.60 mm
	V-2 @Thickness 3.20 mm

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PKKPCS24 / 48830

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