FDM Polymers Technical Reference

FDM Polymers

A Technical Reference

Polymer chemistry, mechanical and thermal envelopes, calibration guidance, post-processing limits, and brand surveys for the polymer families that dominate engineering-grade FFF/FDM additive manufacturing.

• Author: hyiger
• Compiled: May 2026
• Hardware envelope: Prosumer FFF: nozzle to ~350 °C, bed to ~120 °C, chamber to ~65 °C, hardened nozzle (abrasive-rated)
• Scope: Polyesters, polyolefins, polyamides, polycarbonate blends, styrenics, elastomers, high-performance specialty polymers
• Reading level: Engineering practitioner; assumes FDM basics
• License: CC BY-NC-ND 4.0 - free, non-commercial use; see Appendix E

Contents

• Part I — Foundations
  • 1. Scope, methodology, and data caveats
  • 2. FDM polymer taxonomy and the labeling problem
  • 3. Process physics common to all FDM polymers
  • 4. Hardware requirement tiers
  • 5. Safety, emissions, and sustainability
• Part II — PLA Family
  • 6. PLA family
• Part III — Polyester Family
  • 7. PETG and the copolyester family
  • 8. PCTG — deep dive
  • 9. PET and reinforced PET grades
• Part IV — Styrenics Family
  • 10. Styrenics: ABS, ASA, HIPS
• Part V — Polyolefins
  • 11. Polypropylene (PP) — deep dive
  • 12. Polyethylene (PE) and other polyolefins
• Part VI — Polyamides
  • 13. Aliphatic nylons (PA6, PA66, PA12, PA612, PA11)
  • 14. PPA / semi-aromatic polyamides — deep dive
• Part VII — Polycarbonates
  • 15. PC and PC blends — deep dive
• Part VIII — Thermoplastic elastomers
  • 16. TPU, TPEE, PEBA, and foaming elastomers
• Part IX — Specialty engineering thermoplastics
  • 17. PMMA, POM, PVDF
• Part X — High-temperature polymers
  • 18. PPS, PSU, PPSU, PEI
  • 19. PAEK family (PEEK, PEKK)
• Part XI — Support and niche polymers
  • 20. Soluble support polymers (PVA, BVOH, proprietary)
  • 21. Niche polymers (PHA, PCL, PVB)
• Part XII — Cross-cutting workflows
  • 22. Material selection decision framework
  • 23. Calibration workflow (unified)
  • 24. Bed adhesion strategy by polymer family
  • 25. Multi-material and dual-hotend printing
  • 26. Post-processing strategies
  • 27. Cost and procurement landscape
  • 28. Tribological filaments
• Appendices

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Preface

This volume is a single technical reference on the polymers used in engineering-grade FFF/FDM 3D printing, covering the commodity, engineering, and high-performance families a practitioner is likely to encounter. It uses one numbering scheme, one terminology set, and one bibliography throughout. Material common across polymer families - process physics, hardware tiers, and emissions safety - is consolidated into Part I (Foundations) and Part XII (Cross-cutting workflows) so it is stated once rather than repeated. The polymer-family-specific content is organized into Parts II-XI, with each chapter following the same outline (chemistry → property envelope → brand landscape → print process → application fit → post-processing) where the underlying material supports it.

The polymer-family ordering follows the rough commodity-to-specialty axis that practitioners actually traverse: commodity polymers (PLA, PETG, PCTG) and styrenics (ABS, ASA, HIPS) first, then engineering polyolefins (PP), polyamides (aliphatic nylons and PPA), and polycarbonate blends, then the elastomer family, the specialty engineering trio (PMMA, POM, PVDF), and the high-temperature tier (PPS, PSU/PPSU/PEI, PAEK), and finally the support and niche polymers. This is not a ranking by performance — it is a ranking by how a typical engineering build progresses from prototyping to functional service.

Three editorial principles apply throughout. First, data values are from manufacturer technical datasheets unless explicitly labeled otherwise; printed-specimen values are preferred to resin-pellet values where vendors disclose both, and resin-grade data points are flagged when used. Second, vendor marketing claims (especially around heat-resistance ceilings, food-contact compliance, and emissions) are reported as such and qualified where the empirical case is weak. Third, the author's own bench-measured calibration values for specific filament + nozzle combinations are included in Appendix B as worked examples on a representative prosumer setup — these are marked as measured rather than vendor-supplied and should be treated as starting points rather than universal values.

What this document is not: it is not a tutorial for FFF/FDM beginners, not a comprehensive print-failure troubleshooting guide, not a recommendation engine for specific projects, and not a substitute for per-spool calibration on the actual machine. Calibration values cited are starting points. Brand surveys reflect public TDS availability as of early 2026 and will go stale; the polymer-chemistry foundations and process-physics principles will not.

Two polymer families that are technically in scope receive less coverage than they merit. PPS (polyphenylene sulfide), available in CF-filled grades from Bambu, Polymaker Fiberon, and Flashforge, is summarized at the family level in Chapter 18 but does not have a dedicated brand survey. The PAEK family (PEEK, PEKK, PEKK-CF) is similarly summarized in Chapter 19. Both receive family-level coverage here rather than a dedicated brand survey.

Finally, three datasets and tools that inform this volume are referenced but not reproduced: a substantial body of independent third-party filament testing covering tensile, layer-adhesion, and thermal measurements; the author's published statistical analysis of community troubleshooting threads (~910 threads, 15-category classifier); and the author's calibration methodology published on Printables. These appear in Appendix D references where individual data points are drawn from them.

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Part I — Foundations ›