GPPS
General Purpose Polystyrene
Crystal-clear general purpose polystyrene for rigid transparent applications.
01 Overview
GPPS is the transparent, rigid and dimensionally stable member of the styrenics family, used where optical clarity and low cost outweigh impact resistance. It is frequently blended with HIPS to tune the stiffness and toughness of sheet and thermoformed products.
02 Grades traded
- Injection moulding grades
- Extrusion & sheet grades
- High flow grades
03 Typical specification
Melt flow rate
3 – 25 g/10 min (grade dependent)
Density
1.04 – 1.05 g/cm³
Vicat softening point
~ 90 – 100 °C
Light transmission
> 88 %
Form
Transparent pellet
Values shown are indicative and vary by producer grade. The binding specification is the producer certificate of analysis issued against your consignment, supplied with every offer.
04 Applications
- Transparent containers and lids
- Disposable cups and cutlery
- Cosmetic and audio packaging
- Sheet extrusion and thermoforming
- Blending with HIPS
- Light diffusers and display parts
05 Industries served
06 Packaging options
- 25 kg bags on pallet
- 1000 / 1250 kg jumbo bags
- Octabin
07 Supply & export note
Supplied from regional styrenics production with consistent optical properties. Available alongside HIPS from the same producer where a blended sheet formulation requires matched sources.
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