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GPPS INEOS 158K GR21
1.034 $ / mt19.129 $ / container (18.50 mt)MT
INEOS Styrolution GPPS 158K GR21 – high-flow, crystal-clear general-purpose polystyrene for ultra-thin-wall injection items, display packaging and masterbatch carriers that demand fast cycles and brilliant transparency.
Sold by container only: 18.50 mt/container. Quantity = number of containers.
Key Benefits
| Benefit | Why it matters |
|---|---|
| Very high flow (MFR ≈ 22 g / 10 min, 200 °C / 5 kg*) | Rapidly fills multi-cavity or ≤0.4 mm wall tools, trimming clamp force and cycle time. |
| Water-clear gloss | Enhances visual appeal of food tubs, blister packs, cosmetic jars and giftware lids. |
| High stiffness | Tensile modulus ≈ 3.3 GPa keeps parts flat; low shrinkage (0.4 – 0.6 %) simplifies dimensional control. |
| Food-contact ready | Typically conforms to EU 10/2011 & US FDA 21 CFR 177.1640† for single-use cups, cutlery and trays. |
| Excellent colourability | Uniform pellet formulation accepts masterbatch / colour concentrate evenly, ideal as “GR21” carrier resin. |
*Nominal value from INEOS Styrolution GPPS 158K literature.
†Always confirm with a fresh regulatory compliance letter for your purchase lot.
Quick Specifications (typical, 23 °C)
| Property | Typical Value | Test Method |
|---|---|---|
| Melt-Flow Rate | ≈ 22 g/10 min (200 °C / 5 kg) | ISO 1133 / ASTM D1238 |
| Density | 1.04 g/cm³ | ISO 1183 |
| Tensile Strength (yield) | ≈ 50 MPa | ISO 527 |
| Tensile Modulus | ≈ 3.3 GPa | ISO 527 |
| Flexural Modulus | ≈ 3.2 GPa | ISO 178 |
| Notched Charpy, 23 °C | ≈ 2 kJ/m² | ISO 179/1eA |
| Vicat Softening Point (50 N) | ≈ 100 °C | ISO 306 |
| Heat-Distortion Temp. (1.8 MPa) | ≈ 85 °C | ISO 75 |
| Mould Shrinkage (flow) | 0.4 – 0.6 % | ISO 294-4 |
| Flammability | UL 94 HB | UL 94 |
(Values are nominal; request the latest TDS for specification control.)
Applications & Certifications
Typical Applications
-
Ultra-thin disposable tumblers, hinged-lid “clamshell” trays, yogurt cups.
-
Transparent housings for LED lights, batteries, desk accessories.
-
Jewel-case style media packaging, stationery trays.
-
Colour-masterbatch carrier or foamed GPPS blends requiring extra flow.
Key Certifications / Standards
-
UL 94 HB flammability (1.5 mm).
-
Generally meets EU 10/2011 & FDA 21 CFR 177.1640 food-contact limits.
-
Fully compliant with RoHS 2011/65/EU.
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Manufactured under ISO 9001 (quality) and ISO 14001 (environment) management systems.
GPPS 158K GR21 gives processors the crystal clarity, ultra-high flow and dimensional stability needed to keep thin-wall clear parts running fast and looking premium.
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