Engineering plastics Q&A

A working reference for 42 recurring questions on PA6, PA66 and PPS — density and heat resistance figures, drying and moulding windows, why a quote moves, and how to pick a substitute grade. Figures are typical grade ranges; price questions are answered by cost drivers, not by numbers.

  • 42answered questions
  • 3Browse by topic
  • 3Browse by material

PA66 (Nylon 66)

PA66 — the questions buyers actually ask

Density, melting point, HDT, water uptake, shrinkage, drying and moulding windows for PA66, plus what drives its price and when to choose PA6 instead.

14 questions Read all →
  • What is PA66?
  • What is the density of PA66?
  • What is the melting point of PA66?

PA6 (Nylon 6)

PA6 — the questions buyers actually ask

PA6 density, melting point, heat deflection, water absorption, shrinkage, drying and moulding temperatures, glass fibre options and how it compares with PA66.

14 questions Read all →
  • What is PA6?
  • What is the density of PA6?
  • What is the melting point of PA6?

PPS (Polyphenylene sulfide)

PPS — the questions buyers actually ask

PPS melting point, continuous service temperature, water absorption, inherent V-0 behaviour, moulding temperatures, corrosion of the machine and how it compares with PA66.

14 questions Read all →
  • What is PPS?
  • What is the density of PPS?
  • What is the melting point of PPS?

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