King High-Impact Polystyrene is a low cost and versatile plastic material that is easy to machine and fabricate. HIPS is often specified for low strength structural applications when impact resistance, machine-ability, and low cost are required. It is frequently used machining pre-production prototypes since it has excellent dimensional stability and is easy to fabricate, paint and glue. Natural (translucent natural) HIPS is FDA compliant for use in food processing applications.

King Plastic Corporation produces 48”x96” molded High-Impact Styrene sheets in translucent natural.

Where to Buy


Standard Sheet Size

in: 48″ x 96″
mm: 1219mm x 2438mm

Standard Gauges

in: 1/2″ 5/8″ 3/4″ 1″ 1-1/4″ 1-1/2″ 1-3/4″ 2″ 2-1/4″ 2-1/2″
mm: 12.7mm 8.25mm 19.05mm 31.75mm 38.1mm 44.45mm 50.8mm 57.15mm 63.5mm

Approximate Weight

lbs: 86 lbs 108 lbs 130 lbs 173 lbs 216 lbs 260 lbs 303 lbs 346 lbs 389 lbs 433 lbs
kg: 39kg 48.9kg 58.9kg 78.47kg 97.9kg 117.9kg 137.4kg 156.9kg 176.4kg 196.4kg

Tolerance Information:

Compression Molding
Gauges 1/2” through under 1-1/2” ± 10% | Gauges 1-1/2” or greater plus only | Length and width plus only at room temperature

Custom gauges available

Physical Properties




Nominal Values

Density g/cc D792 1.04
Tensile Strength @ Break % D638 50
Elongation @ Yield psi D638 >3,000
Flexural Modulus psi D790 240,000
Flexural Yield Strength psi D790 4,210
Notched Izod Impact ft.lbs./in.2 D256 2.8
Vicat Softening Temp. ºC (ºF) D1525 99ºC (210ºF)
Heat Deflection Temp. 264 psi ºC (ºF) D648 85ºC (185ºF)
Flammability Rating UL94 HB

*All values are determined on specimens prepared according to ASTM Standards.

Nominal values should not be interpreted as specifications.

King High-Impact Polystyrene is made from FDA materials.



Additional Information

Dimensionally stable
Low water absorption