Zytel® LC6601 BK551

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® LC6601 BK551 is a toughened, polyamide 612 resin plasticized for improved flexibility in extrusion applications.

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.

Ashby charts





23.0 °C

1.02 g/cm³

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ISO 1183




23.0 °C

200 %

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

Elongation at yield

23.0 °C

32 %

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ISO 527-1/-2

Flexural modulus

23.0 °C

0.85 GPa

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ISO 178

Yield strength

23.0 °C

32 MPa

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ISO 527-1/-2



Heat deflection temperature, 1.80 MPa

45 °C

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ISO 75-1/-2

Melting point

215 °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