TF8WCS
THERMOLAST® K
Sealing applications in the drinking water sector with adhesion to PP
Processing Method:
Injection Molding
Injection Molding
Color / RAL DESIGN:
natural
natural
Typical applications
- Seals, functional and design elements in sanitary sector
Material features
- Adhesion to PP
- Plasticizer free
- Optimized compression set
- Thermoplastic alternative to elastomers
- Resistance to microbes
Regulations / Approvals
- Regulation (EU) No 10/2011
- DVGW Arbeitsblatt W270
- ACS (DGS/VS4 n° 200/232)
Value | Unit | Standard | |
---|---|---|---|
Hardness | 76 | Shore A | DIN ISO 48-4 |
Density | 0.930 | g/cm3 | DIN EN ISO 1183-1 |
Tensile Strength1 | 16.0 | MPa | DIN 53504/ISO 37 |
Elongation at Break1 | 550 | % | DIN 53504/ISO 37 |
Tear Resistance | 27.0 | N/mm | ISO 34-1 Method B (b) (Graves) |
CS 72 h/23 °C | 20 | % | DIN ISO 815-1 Method A |
CS 24 h/70 °C | 75 | % | DIN ISO 815-1 Method A |
1Deviating from ISO 37 standard test piece S2 is tested with a traverse speed of 200 mm/min.
All values published in this data sheet are rounded average values. |
The expected shelf life of the TPE granules is a minimum of 24 months from the date of delivery, provided that the storage instructions are followed and the product is kept in the unopened original KRAIBURG TPE packaging. Dry conditions at room temperature (below 40 °C/ 104 °F), away from heat sources and direct sunlight, must be maintained for proper storage. Contact with nitrogen oxides during storage should be avoided. |
For further information and individual custom solutions please contact our customer service. |
Processing Guideline Injection Molding | |
---|---|
Cylinder Temperature | 230 - 250 - 260 °C max. 280 °C (470 - 500 - 520 °F, max. 540 °F) |
Hotrunner | Hot runner temperatures 250 - 265 °C / 480 - 510 °F. The runner should be empty after a maximum of 2 - 3 shots |
Injection Pressure | 200 - 1000 bar (2900 - 14504 psi) (depending on the size and weight of the part). |
Injection Rate | In general, the fill time should not be more than 1–2 seconds. |
Hold Pressure | We recommend to derive the optimum hold pressure from determining the solidification point, starting with 40 % - 60 % of the required injection pressure. |
Back Pressure | 20 - 100 bar; if color batches are used, higher back pressure is necessary. |
Screw Retraction | If an open nozzle is used processing with screw retraction is advisable. |
Mold Temperature | 25 - 40 °C (77 - 104 °F) |
Predrying | Due to better processing behavior pre-drying is recommended. Drying conditions: 60°C-80°C for 2-4 hrs. |
Needle Valve | With materials < 50 Shore A the use of a needle valve is advisable. |
Screw Geometry | Standard 3-zone polyolefine screw. |
Residence Time | The residence time is to be set as short as possible with a maximum of 10 minutes. |
Cleaning Recommendation | For cleaning and purging of the machine it is appropriate to use polypropylene or polyethylene. Machine must be PVC-free. |
Dry conditions at room temperature (below 40 °C/ 104 °F), away from heat sources and direct sunlight, must be maintained for proper storage. Contact with nitrogen oxides during storage should be avoided.