Technical datasheet
HIPS—HIGH IMPACT POLYSTYRENE
Supplied byWestlake Plastics- Last Updated on Jun 18, 2025
HIPS—HIGH IMPACT POLYSTYRENE by Westlake Plastics is a natural colored, paintable high impact polystyrene (HIPS) grade. Exhibits excellent dimensional stability, excellent machinability, low strength, good adhesion and is easy to fabricate. Is insoluble in water and recommended for food processing applications, machined prototypes, housings and covers. HIPS—HIGH IMPACT POLYSTYRENE complies with FDA and UL 94 HB flame rating.
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HIPS—HIGH IMPACT POLYSTYRENE properties
Flammability properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Flame Rating, UL 94 | 0.0 Visible After Login | Visible After Login | Visible After Login |
Mechanical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Elongation at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Flexural Modulus | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Flexural Strength At Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Hardness, Rockwell R | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Impact Strength, Notched Izod | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Modulus of Elasticity | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Tensile Strength at Break | 0.0 Visible After Login | Visible After Login | Visible After Login |
Other properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Tensile Strength at Yield | 0.0 Visible After Login | Visible After Login | Visible After Login |
Physical properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| Specific Gravity | 0.0 Visible After Login | Visible After Login | Visible After Login |
Thermal properties
| Properties | Value & unit | Test condition | Test method |
|---|---|---|---|
| CTE, Linear, Parallel to Flow | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT) | 0.0 Visible After Login | Visible After Login | Visible After Login |
| Heat Deflection Temperature (HDT) | 0.0 Visible After Login | Visible After Login | Visible After Login |