Universal application; adhesion to PP

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

Typical applications

  • Car mats
  • Handles (tools and power tools, adjustment lever, etc.)
  • Air guide elements
  • Air flap control
  • Seals for housings
  • Fasteners
  • Cable clips
  • Bumpers
  • Joint sealing

 

Material features

  • Adhesion to PP
  • Soft touch surface
  • Optimized mechanical properties
  • Colorable
  • Controlled level of emission and odor, suitable for automotive interior
  • Dry haptics
  • Halogen-free (according to IEC 61249-2-21)
  • In-process recycling possible

 

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
  • UL 94 HB

 

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Value Unit Standard
Hardness 39 Shore A DIN ISO 48-4
Density 1.100 g/cm3 DIN EN ISO 1183-1
Tensile Strength1 7.0 MPa DIN 53504/ISO 37
Elongation at Break1 800 % DIN 53504/ISO 37
Tear Resistance 15.5 N/mm ISO 34-1 Method B (b) (Graves)
CS 72 h/23 °C 16 % DIN ISO 815-1 Method A
CS 24 h/70 °C 28 % DIN ISO 815-1 Method A
CS 24 h/100 °C 63 % DIN ISO 815-1 Method A
Short term temperature stability under stress -40°C up to 90 °C KRAIBURG TPE test method
Short term temperature stability without stress -40°C up to 150 °C KRAIBURG TPE test method
Long term temperature stability without stress from -40°C up to 110 °C KRAIBURG TPE test method
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 180 - 200 - 220 °C, max. 250 °C (360 - 390 - 430 °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 25 - 40 °C (77 - 104 °F)
Predrying Pre drying of the material is not necessary; if surface moisture forms as a result of changes in temperature, the material should be dried for 2 - 4 hours at 60 - 80 °C (140 - 175 °F).
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.
Processing Guideline Extrusion
Cylinder Temperature 140 - 150 - 160 °C; max. 210° C (285 - 300 - 320 °F; max. 410 °F).
Screw Geometry Standard three-zone screw (e.g. polyolefin screw). The screw must be able to provide sufficient shearing.
L/D Ratio At least 25
Compression Ratio At least 3.5 : 1
Screens / Breaker Plate A breaker plate and a screen pack are generally recommended in the extruder configuration in order to increase pressure.
Die Land <= 3 mm ( <= 0,12 in.)
Extruder Head Ca. 170 °C (340 °F)
Die Temperature Ca. 190 - 210 °C (374 - 410 °F)
Predrying Pre drying of the material is not necessary; if surface moisture forms as a result of changes in temperature, the material should be dried for 2 - 4 hours at 60 - 80 °C (140 - 175 °F). To avoid porosity in the profile a pre drying is recommended for wall thickness > 3mm.
Calibration Generally not necessary; support elements may be required when extruding THERMOLAST® compounds with high hardness or when coextruding with standard thermoplastics.
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.