Elder Engineering - Plastics Engineering
Engineering Plastics

High Impact Polystyrene / HIPS

High Impact Polystyrene Sheet (HIPS)

Material Properties
Properties ISO Test Method Unit Matt Sheet Gloss Capping
Density ISO 1183 G/cm³ 1.05 1.05
Izod Impact Strength(notched) ISO 180 J/m 100 -
Flexural Strength ISO 178 Mpa 42 90
Tensile Strength ISO 527 Mpa 26 -
Falling dart impact Strength (4.0mm). ISO 6603 -1 J 16 16
Vicat Softening Temperature ISO 306A °C 95 92
Heat Deflection Temperature ISO 75a °C 81 76
Flammability Rating UL94 - HB HB

Material Safety Data for H.I.Polystyrene
Ingredients; Pigments (non hazardous) 4% max, Additives (non hazardous) 10% max, Graft polymer of styrene on a dienic unsaturated rubber CAS #009003-55-8 90%

Physical Properties. Nature of material - solid, Physical form - flat sheet. Appearance - sheet smooth or embossed. Molecular weight - variable. Odour - characteristic. Melting point 80°C. Insoluble in water. Specific gravity 1.05. Percentage of volatiles by volume - negligible.

Fire and Explosion data. Auto ignition temp. - 450°C, Flash point - 350°C. Fire and explosion hazards - Formation of toxic fumes & styrene & butadiene monomer in trace quantities.


Health Effects Data: Effects of inhalation; fumes from thermal decomposition and dust generated from machining may cause temporary breathing difficulties. Effects of ingestion - non toxic. Eye contact; Fumes or dust may cause irritation. Skin contact; hot material may cause burns.

First Aid: First aid for inhalation; remove victim to fresh air, seek medical attention if symptoms persist. First Aid for ingestion; seek medical attention if symptoms develop. First Aid for eye contact- flush eye with water. First Aid for skin contact- cool burns with water, seek medical attention for removal of molten material.

Protective Clothing/ Control Measures: Respiratory protection; Dust masks should be available. Eye protection - use safety glasses. Thermal gloves and protective clothing should be worn. Ventilation requirements - good local and adequate general ventilation should be ensured.

Emergency Procedures. Spillage; lift spillage mechanically.

Waste Disposal. Controlled waste; No. Preferred disposal method - incineration or sanitary landfill, regarding local legal requirements.

Ecological Hazards. Water hazard; no ecological hazard. Land hazard - no hazard.

Transport. Special requirements- none. Labelling - (not dangerous).

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