Product Overview
High Impact Polystyrene
High Impact Polystyrene HIPS contains rubber (butadiene) and is particularly useful in the manufacture of parts requiring a high degree of impact resistance. In our range we have HIPS suitable for refrigerators (stress cracking resistance grade) and a high-gloss grade for glossy-surface finish applications. HIPS is generally used for refrigerator interiors, food trays & cups, electrical appliance components, TV & AV equipment parts, automotive parts, toys, instrument panels, gasoline tanks, computer housings, sheets & laminations, cutlery, medical appliances, fan parts, and air conditioner grills.
High Impact
Opaque
Thermoformable
Stress Crack Resistant
6 Grades Available
High Gloss Options
Applications
Major Applications
Technical Data
HIPS Specifications (ASTM)
| HIPS — Typical Properties | ||||||||
|---|---|---|---|---|---|---|---|---|
| Property | ASTM | Units | HI-850 | HI-800 | HI-800HG | HI-861 | HI-851 | HI-826HG |
| Tensile Strength | D-638 | Kgf/cm² | 200 | 150 | 150 | 210 | 210 | 280 |
| Tensile Modulus | D-638 | Kgf/cm² | 13000 | 12000 | 12000 | 12000 | 13000 | 14000 |
| Tensile Elongation | D-638 | % | 40 | 40 | 40 | 50 | 50 | 40 |
| Flexural Strength | D-790 | Kgf/cm² | 375 | 300 | 300 | 400 | 400 | 500 |
| Flexural Modulus | D-790 | Kgf/cm² | 17000 | 16000 | 16000 | 16000 | 17000 | 19000 |
| Izod Impact Resistance | D-256 | Kg-cm/cm | 10 | 11 | 11 | 11 | 10 | 12 |
| Gardner Falling Dart | D-5420 | In-lb | 95 | 113 | 113 | 113 | 95 | 139 |
| Vicat Softening Temp | D-1525 | °C | 90 | 90 | 90 | 90 | 90 | 96 |
| Heat Deflection Temp | D-648 | °C | 85 | 80 | 80 | 85 | 85 | 92 |
| Specific Gravity | D-792 | — | 1.04 | 1.04 | 1.04 | 1.04 | 1.04 | 1.05 |
| Gloss | D-523 | % | — | — | 70 | — | — | 80 |
| Melt Flow Index | D-1238 | g/10min | 6 | 11 | 11 | 4 | 3 | 3.5 |
| Product Description | Injection | Injection | Injection | Extrusion | Extrusion | Injection | ||
Grade Guide
Grades, Characteristics & Applications
| Grade | Characteristics | Applications |
|---|---|---|
| HI-850 | High impact, standard flow, good gloss, low volatility | Housewares, drinking cups, washing machine parts, refrigerator parts, toys, stationery, sanitary products, hangers, cotton buds, automotive parts, disposable razors |
| HI-800 | High flow, superior heat characteristics, better mould capability, good strength, excellent mould release, brilliant processability | Cosmetic containers, stationery, disposable cutlery, plates, glasses, dairy packaging, disposable lids |
| HI-800HG | High flow, superior heat, better mould capability, good strength, excellent mould release, high gloss (70%) | Cosmetic containers, stationery, exhaust fan grills, washing parts, sanitary products |
| HI-861 | High impact, good gloss, low volatility, stress cracking resistant (Freon resistant) | Freezer & deep-freezer sheet lining, plates, glasses, cups, dairy packaging, household items |
| HI-851 | High impact, good gloss, low volatility | Disposable cutlery, plates, glasses, cups, household products, seed trays, laminated sheets (e.g. EPS pallet covers) |
| HI-826HG | Medium flow, superior heat, better mould capability, good strength, excellent mould release, high gloss (80%) | Air conditioner grills, TV cabinets, cosmetic packing, stationery, thick-wall moulding |