PA12 is one of the most widely printed powder bed materials. It is listed as compatible on all four PostPro systems (SFX, SF2X, SF50 and SF100), with PostPro Pure and with FA326.
Published results on PA12
| Material and process | Result | Source |
|---|---|---|
| PA12, voxeljet HSS | Elongation at break +38.1% (XY); dimensional change 0.39 mm (0.4%) | AMT whitepaper, Feb 2024 |
| PA2200, SLS | Burst pressure up to +7%; maximum dimensional change 0.4% | AMT whitepaper, Jan 2024 |
| HP 3D HR PA 12, HP MJF, PostPro Pure | No reduction in strength or durability; no cytotoxic effects | AMT whitepaper, Jun 2025 |
PA12 in the field
- ABConcept ran over 100 vapor smoothed HP MJF PA12 components through more than 2,450 km of the Rallye du Maroc (case study, Dec 2025).
- Protolabs produces flame-retardant parts in HP 3D HR PA 12 FR on HP MJF, vapor smoothed, with UL94 V-0 compliance (case study, Jun 2026).
Both are in Applications, with links to the full case studies.
Grades
PA12 from different printers and suppliers is not all the same powder. AMT’s compatible materials lists name the grades that have been tested; see the documents page.
Over to you: which PA12 grades and printers do you smooth? Share results and photos, and questions about grades that are not on the list.
Sources
- Vapor smoothing: SF and X-series family page and SFX, SF2X, SF50, SF100 product pages. AMT, page read Oct 6, 2026
- Vapor smoothing consumables: PostPro Pure (FA5802), FA326 and FA9202. AMT, page read Oct 6, 2026
- Vapor smoothing voxeljet’s HSS PA12 with AMT PostPro (whitepaper). AMT, Feb 6, 2024
- Performance improvements of vapor smoothed SLS PA2200 parts (whitepaper). AMT, Jan 8, 2024
- Vapor smoothing of HP MJF parts with sustainable PostPro Pure consumable (whitepaper). AMT, Jun 20, 2025
- How vapor smoothing helps 3D-printed rally car parts perform in extreme racing conditions (ABConcept case study). AMT, Dec 10, 2025
- Flame-retardant 3D-printed parts with UL94 V-0 compliance (Protolabs case study). AMT, Jun 3, 2026