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Chimei PH-888G is a high-performance resin characterized by high rigidity, stable flowability, and balanced mechanical strength. This grade is specifically designed for injection molding applications requiring durability, such as electronic housings, industrial components, and automotive interiors. Technical Data Sheets (TDS) and ISO certifications are available.
| Manufacturer | Chimei |
|---|---|
| Density | 1.03 g/cm³ |
| MVR | 4.0 cm³/10 min |
| Elongation at Break | 35 % |
| Flexural Modulus | 2200 MPa |
Note: See the product description for additional technical specifications
Chimei HIPS PH-888G (Full Name: Chimei High Impact Polystyrene PH-888G) is a general-purpose HIPS resin developed and produced by Chimei Corporation (Taiwan). As a leading global supplier of styrenic resins, Chimei has utilized mature manufacturing processes to provide PH-888G with excellent impact resistance, processing flowability, and significant cost advantages.
Supplied in natural pellet form, this product complies with international environmental certifications including RoHS and REACH. Its low shrinkage rate and superior dimensional stability make it widely used in electronic appliance housings, food packaging trays, household daily necessities, and automotive interiors. For customers seeking a “performance-compliant and highly cost-competitive” material, PH-888G is the ideal general-purpose plastic solution.
The following technical parameters are based on international standard testing. All tests were conducted under standard environmental conditions (23°C, 50%RH) to ensure objective and comparable data for engineering benchmarks.
| Property | Value | Test Standard | Test Condition |
| Density | 1.03 g/cm³ | ISO 1183 | 23°C |
| Melt Volume Rate (MVR) | 4 cm³/10 min | ISO 1133 | 200°C, 5 kg |
| Property | Value | Test Standard | Test Condition |
| Tensile Stress | 32 MPa | ISO 527 | 50 mm/min |
| Elongation at Break | 35 % | ISO 527 | 50 mm/min |
| Flexural Modulus | 2200 MPa | ISO 178 | 2 mm/min |
| Flexural Strength | 48 MPa | ISO 178 | 2 mm/min |
| Charpy Notched Impact Strength | 10 kJ/m2 | ISO 179 | 23°C, 4 mm |
| Izod Notched Impact Strength | 10 kJ/m2 | ISO 180/1A | 23°C, 4 mm |
Electronics & Appliances: Monitor bases, router housings, air conditioner panels, and small appliance bases. PH-888G provides reliable impact protection and is easy to paint or treat.
Packaging Industry: Food packaging trays, cosmetic boxes, disposable cutlery, and pharmaceutical packaging. Its excellent flowability and low cost make it ideal for high-volume extrusion or injection molding.
Household & Daily Necessities: Storage bins, children’s toys (e.g., building blocks), and bathroom racks. Its non-toxic and odorless properties meet consumer safety standards.
Automotive Interiors: Dashboard lower guards, glove boxes, and seat back panels. For non-load-bearing structural parts, PH-888G is an economical alternative to higher-priced ABS.
| Dimension | Chimei HIPS PH-888G | Chimei HIPS PH-888E | Recommendation |
| Cost | Lower; Focused on maximum value | Slightly higher; Premium for gloss | Choose PH-888G for tight budgets. |
| Gloss Level | Good (Matte/Semi-gloss) | Superior (Mirror-like gloss) | Choose PH-888E for appearance parts. |
| Flowability | Excellent | Good | Choose PH-888G for complex thin-wall parts. |
| Dimension | Chimei HIPS PH-888G | General Purpose ABS | Recommendation |
| Cost | Low (15%-25% cheaper) | Moderate | Choose HIPS for cost reduction. |
| Impact Strength | Good (Daily use) | Excellent (Tougher) | Choose ABS for industrial protection. |
| Processability | Easier; Low shrinkage | Good; Requires pre-drying | Choose HIPS for mass production. |
| Stage | Parameter | Recommended Range | Remarks |
| Drying | Temperature | 70-80°C | Excessive drying may cause yellowing. |
| Drying | Time | 1-2 Hours | HIPS has low hygroscopicity; ensure moisture < 0.2%. |
| Melt Temp | Cylinder Center | 170-190°C | Core melting zone. |
| Nozzle Temp | Nozzle | 160-180°C | Prevents drooling. |
| Mold Temp | Mold | 30-60°C | Directly affects surface gloss. |
| Injection Pressure | Pressure | 70-110 MPa | Adjust based on part thickness. |
Q: Is PH-888G suitable for food packaging?
A: Yes. PH-888G is non-toxic, odorless, and REACH/RoHS compliant. It is commonly used for food trays, cold drink cups, and outer packaging. For direct food contact, we recommend reviewing specific food-grade migration test reports.
Q: Why choose HIPS over ABS?
A: The primary reason is cost control. If your product (such as disposable housings, trays, or toys) does not require the high rigidity and heat resistance of ABS, switching to HIPS can reduce material costs by approximately 20% while offering shorter molding cycles.
Q: How does it perform in cold environments?
A:The impact resistance of HIPS decreases gradually at low temperatures. If used in environments below -5°C, we recommend adding a toughening agent or using a modified HIPS grade to prevent brittleness.
