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Knowde Enhanced TDS
Identification & Functionality
Diamond GP-525 Features & Benefits
Applications & Uses
House ware, Containers, Plastic refrigerator parts, Toys and Lampshield, Drinking cups, Audio & Video cassette, Stationery items, CD casing, Plastic hangers and Cosmetic casings.
- Injection Molding
Although Polystyrene GP-525 can be processed by any method applicable to polystyrene based plastic, it is best suitable for injection molding and extrusion molding. The melt temperatures should not exceed 260 °C .
|Test Method / Conditions
|Specific Gravity (23°C)
|Tensile Strength at Yield / at break
|Vicat Softening Temp
|Heat Distortion Temp
|Melt Flow Rate MFR 200/5
Regulatory & Compliance
If used unmodified and under appropriated processing conditions, Polystyrene GP-525 conforms with FDA title 21 CFR section 177.1640 regarding the use of in food contact articles. Diamond Polystyrene is also approved by PCSIR (Pakistan Council of Scientific & Industrial Research).
Safety & Health
During processing of Polystyrene GP-525, small quantity of Styrene Monomer may be released into the atmosphere. At styrene vapor concentrations below 20 ppm, no negative health effects are expected. In our experience, the concentration of styrene does not exceed 1 ppm in good ventilate workplace.
Diamond polystyrene resins can be recycled. Adequate ventilation should be used during processing. Diamond Polystyrene must not be dispose of to landfill or incineration as per government laws and regulations.
Packaging & Availability
Storage & Handling
Polystyrene GP-525 is supplied as cylindrical shaped granules. It has to be kept in its original containers in a dry, cool place. Avoid direct exposure to sunlight. PS GP-525 can also be stored in silos.