Zytel® LC6159 BK554

Alternative and trade names
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DuPont™ Zytel® LCPA long chain polyamide resins provide an innovative and growing portfolio of flexible polymers with excellent thermal, chemical, and hydrolysis resistance. The diverse selection of Zytel® LCPA grades is targeted for a range of performance characteristics, balancing temperature resistance, flexibility and low permeation.Zytel®LC6159 BK554 is an unreinforced, heat stabilized, high viscosity polyamide 612.

Equivalent Materials

This material data has been provided by Matmatch.

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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23.0 °C

1.06 g/cm³

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ISO 1183



Elastic modulus

23.0 °C

2.4 GPa

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ISO 527-1/-2


23.0 °C

50 %

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ISO 527-1/-2 | 50mm/min

Elongation at yield

23.0 °C

4.3 %

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ISO 527-1/-2

Impact strength, Charpy notched

23.0 °C

5 kJ/m²

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ISO 179/1eA

Poisson's ratio

23.0 °C

0.38 [-]

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Tensile strength

23.0 °C

40 MPa

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ISO 527-1/-2 | 50mm/min

Yield strength

23.0 °C

65 MPa

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ISO 527-1/-2



Heat deflection temperature, 0.45 MPa

150 °C

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ISO 75-1/-2

Melting point

216 °C

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ISO 11357-1/-3 | 18°F/min


FMVSS Class: B -, Burning rate, Thickness 1 mm: <80 mm/min

Technological properties

Processing methods

Drying Recommended: yes, Drying Temperature: 80°C, Drying Time, Dehumidified Dryer: 2-4h, Processing Moisture Content: ≤0.15%, Min. melt temperature: 230°C, Max. melt temperature: 290°C, Min. mold temperature: 50°C, Max. mold temperature: 90°C