Knowde Enhanced TDS
Identification & Functionality
- Chemical Family
- Polymer Name
- Plastics & Elastomers Functions
- Technologies
- Product Families
Features & Benefits
- Labeling Claims
- Materials Features
Applications & Uses
- Applications
- Plastics & Elastomers End Uses
- Plastics & Elastomers Processing Methods
- Applications
Main application of suncolor® exquisit is the production of sports helmets.
- Food Packaging
suncolor® exquisit is manufactured from polystyrene and additives which are suitable for production of food packaging in accordance with EU-directives. Checking the suitability of the packaging material for use with foodstuffs is the responsibility of the processor.
Properties
- Color
- Typical Properties
| Value | Units | Test Method / Conditions | |
| Density Range | 20 - 120 | kg/m3 | — |
| Granulate Geometry | Cylindrical | — | — |
| Typical Granulate Diameter | 0.8 | mm | — |
| Typical Granulate Length | 1.5 | mm | — |
| Pentane Content (at the time of packaging) | min. 5.0 | % | — |
| Water Content (at the time of packaging) | max. 0.3 | % | — |
Technical Details & Test Data
- Processing
Pre-expansion
With discontinuously operating state-of-the-art preexpanders, suncolor® exquisit can be pre-expanded to densities of 20 - 120 kg/m³. However, it is important that the pre-expanded beads are completely expelled from the pre-expander after each cycle because any beads remaining in the machine will become lighter in weight and in color after repeated pre-expansion; this can lead to irregularities in the distribution of color in the finished parts.
The special glossy finish absorbs somewhat more moisture during the pre-expansion than normal EPS materials. For this reason, the use of an efficient fluidised bed dryer is required.
Intermediate aging
The intermediate aging time should be minimum 24 hours. At higher densities, the intermediate aging time may be prolonged without difficulty.
Molding:
suncolor® exquisit can be processed in industry standard automatic molding machines. Special steaming settings are not required. The cooling period should be longer than for other types of EPS to prevent the molded parts from swelling.
Densities lower than 20 kg/m³ should not be used as this may lead to molding difficulties (collapse of the molded parts, difficulties with demoulding, unsatisfactory foam quality).
Safety & Health
- Safety Instructions
Flammable pentane-air mixtures may be generated during storage and processing of sunpor® exquisit black. For this reason, adequate ventilation must be ensured (LEL pentane 1.3 % by volume). The blowing agent pentane escapes relatively slowly from EPS foam blocks. Thus, when cutting recently molded blocks, the formation of a flammable pentane-air mixture has to be anticipated. In addition, all conceivable sources of ignition must be kept away, and the build-up of electric charges has to be prevented.
Packaging & Availability
- Packaging
sunpor® exquisit black is shipped in octabins (height max. 192 cm) on wooden pallets (114 x 114 cm) containing 1,150 kg net of material.
- Shipping
UN-Number 2211 Designation Polymeric beads, expandable
Class 9 Packing Group III ADR
Storage & Handling
- Storage
The octabins are not weather- or water-proof and must therefore not be exposed to outdoor conditions. It is not recommended to stack octabins more than one layer high. In case of double-stacking octabins under controlled conditions, the recommendations laid out in the document "Instructions for stacking sunpor octabins“ must be followed.
In order to obtain the desired properties of sunpor®exquisit black, the raw material should be stored below 20 °C and be processed within one month.