SKYi Stärk BH1118

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SKYi Stärk BH1118 is a special heat stabilized long glass fibre reinforced polybutylene terephthalate grade, for injection moulding and extrusion. The long glass fibres, chemically coupled to the polybutylene terephthalate matrix, providing outstanding mechanical properties. SKYi Stärk BH1118 is available both in black and natural.

This material data has been provided by BUFA.

All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated.
Equivalent standards are similar to one or more standards provided by the supplier. Some equivalent standards may be stricter whereas others may be outside the bounds of the original standard.

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20.0 °C

1.51 g/cm³

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Elastic modulus

20.0 °C

10 GPa

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ISO 527-I


20.0 °C

2.5 %

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ISO 527-I

Flexural strength

20.0 °C

195 MPa

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ISO 178

Impact strength, Charpy notched

20.0 °C

12 kJ/m²

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ISO 179-I

Tensile strength

20.0 °C

145 MPa

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ISO 527-I



Heat deflection temperature, 0.45 MPa

220 °C

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ISO 75-I

Technological properties

Application areas

SKYi Stärk BH1118 is intended for injection moulding of highly demanding technical applications. The excellent properties of SKYi Stärk BH1118 make it suitable for: Electronic components, automotive parts, door handle, demanding components for various engineering sectors.

SKYi Stärk BH1118 can, in many of these applications, substitute other engineering plastics or metal alloys.


Available both in black and natural.


Safety: SKYi Stärk BH1118 is not classified as a dangerous preparation. Dust and fines from the product may give a risk for dust explosion. All equipment should be properly earthed. Inhalation of dust may irritate the respiratory system and should be avoided. During processing of the product small amounts of fumes are generated, which require proper ventilation.

Recycling: The product is suitable for recycling using modern methods of shredding and cleaning. Inhouse production waste should be kept clean to facilitate direct recycling. The Materials Safety Data Sheet is available on request. Please contact your SKYi representative for more details on various aspects of safety, recovery and disposal of the product.

The following related documents are available on request, and represent various aspects on the usability, safety, recovery and disposal of the product.

  • Safety Data sheet
  • Statement on compliance to RoHS Directive 2011/65/EU
  • Processing guidelines
  • Processing methods

    Injection Molding:

    Feed section (°C)Nozzle (°C)Melt temperature (°C)Mold temperature (°C)
    255-285280-290220-28040 – 60