Applications with adhesion to POM

Processing Method:
Injection Molding
Color / RAL DESIGN:
natural
 
 
Availability:
Globally
Manufacturing Site:
Germany, Malaysia, United States

Typical applications

  • Bumpers
  • Thumb wheels
  • Function and design elements
  • Handles (tools and power tools, etc.)
  • Components for conveying systems

 

Material features

  • Adhesion to POM
  • Soft touch surface
  • Colorable

 

Regulations / Approvals

  • DIN 75201-B - Fogging
  • VDA 270 B3 - Odor
  • 49 CFR §571.302 (FMVSS 302)
  • DIN EN ISO 105-B06 Methode 3
  • VW 50123
  • BMW GS 93042
  • Mercedes-Benz DBL 5562

 

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Value Unit Standard
Hardness 76 Shore A DIN ISO 48-4
Density 1.150 g/cm3 DIN EN ISO 1183-1
Tensile Strength1 7.0 MPa DIN 53504/ISO 37
Elongation at Break1 650 % DIN 53504/ISO 37
Tear Resistance 23.0 N/mm ISO 34-1 Method B (b) (Graves)
Adhesion to POM2 7.0 (D) N/mm VDI 2019 two-component injection molding
1Deviating from ISO 37 standard test piece S2 is tested with a traverse speed of 200 mm/min.
2Adhesion values to impact-modified POM
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 180 - 210 - 240 °C, max. 250 °C (360 - 410 - 460 °F, max. 480 °F)
Hotrunner Hot runner temperatures: 200 -250 °C (390 - 480 °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 80 - 110 °C (175 - 230 °F); below 80°C mold temperature the adhesion decreases significantly.
Predrying To achieve optimum mechanical values, drying the material for 2 - 4 hours at 60 - 80 °C (140 - 175 °F) is recommended.
Needle Valve With materials < 50 Shore A the use of a needle valve is advisable.
Screw Geometry Standard 3-zone polyolefine screw.
Residence Time TPE: max. 10 Min. POM: max. 4 Min.
Cleaning Recommendation For cleaning and purging of the machine it is appropriate to use polypropylene or polyethylene. Machine must be PVC-free.
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.