--- title: "Vapor Smoothing Materials: Compatibility Guide | AMT PostPro" description: "Which materials can be vapor smoothed: PA12, PA11, TPU, TPE, PP and industrial FDM plastics, by process and finishing agent, as AMT lists them." canonical: https://amtechnologies.com/materials/ updated: 2026-10-07 type: material --- Applications · Materials # Which materials can be vapor smoothed? Vapor smoothing works on thermoplastics that a controlled solvent vapor can soften and reflow. With PostPro, that means the powder-bed nylons PA12 and PA11, the elastomers TPU and TPE, polypropylene with its dedicated agent, industrial FDM materials, and 100+ thermoplastics[1] with FA326 on the SF50 and SF100. [Test your parts, free](https://benchmarking.amtechnologies.com/submit?utm_source=amtechnologies.com&utm_medium=material-page&utm_campaign=site-2026&utm_content=materials-materials-hero) See the matrix No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks[2] ![PostPro Pure finishing agent cartridge](https://amtechnologies.ai/img/pure-cartridge-352.webp) PostPro Pure Every PostPro system ![FA326 finishing agent canister](https://amtechnologies.ai/img/cons-fa326-320.webp) FA326 SF50 and SF100 ![FA9202 polypropylene finishing agent canister](https://amtechnologies.ai/img/cons-fa9202-243.webp) FA9202 Polypropylene Render · The three PostPro finishing agents. The agent decides the material list.[1] - [PA12 Nylon](https://amtechnologies.com/materials/pa12/) - [PA11 Nylon, castor-based](https://amtechnologies.com/materials/pa11/) - [TPU TPU and TPE](https://amtechnologies.com/materials/tpu/) - [PP Polypropylene](https://amtechnologies.com/materials/polypropylene/) - FA326 Rigid plastics - [CNC Machined plastics](https://amtechnologies.com/applications/vapor-polishing-machined-plastics/) Compatibility ## Material, process and finishing agent. Every row as AMT’s brochure and compatible-material lists print it. The finishing agent decides which machine you need: PostPro Pure runs in every system, FA326 on the SF50 and SF100, FA9202 for polypropylene. **PostPro compatibility by printing process, material and finishing agent** | Process | Material | PostPro Pure | FA326 | FA9202 | | --- | --- | --- | --- | --- | | MJF | PA 12[3] | Listed | Listed | Not listed | | MJF | PA 12 Filled[3] | Listed | Listed | Not listed | | MJF | PA 11[3] | Listed | Listed | Not listed | | MJF | Forward AM TPU[3] | Listed | Listed | Not listed | | MJF | Lubrizol TPU[3] | Listed | Not listed | Not listed | | MJF | Polypropylene[3] | Not listed | Not listed | Listed | | SLS | PA 12[3] | Listed | Listed | Not listed | | SLS | PA 12 Filled[3] | Listed | Listed | Not listed | | SLS | PA 11[3] | Listed | Listed | Not listed | | SLS | Polypropylene[3] | Not listed | Not listed | Listed | | SAF | PA 12[1,4,5] | Listed | Listed | Not listed | | HSS | PA 11, PA 12[1] | Listed | Not listed | Not listed | | FDM | ABS, PC, PBT, ASA, PET[3] | Not listed | Listed | Not listed | | FDM | Ultem[3] | Listed | Not listed | Not listed | | FDM | Onyx (carbon-filled nylon)[1,5,6] | Listed | Listed | Not listed | | CNC | Machined plastics (PC, PEI, PMMA)[3] | Listed | Not listed | Not listed | By system ## Which system lists which material. Each PostPro product page lists its materials. Where a cell says Ask, the material is not listed for that system or its configuration needs confirming. **Materials listed on each PostPro system’s product page** | System | PA12 | PA11 | TPU | TPE | PP | | --- | --- | --- | --- | --- | --- | | [PostPro SFX](https://amtechnologies.com/products/vapor-smoothing/postpro-sfx-desktop-vapor-smoothing-system/) | Listed | Listed | Listed | Ask | Listed | | [PostPro SF2X](https://amtechnologies.com/products/vapor-smoothing/postpro-sf2x/) | Listed | Listed | Listed | Ask | Ask | | [PostPro SF50](https://amtechnologies.com/products/vapor-smoothing/postpro-sf50/) | Listed | Listed | Listed | Listed | Listed | | [PostPro SF100](https://amtechnologies.com/products/vapor-smoothing/postpro-sf100/) | Listed | Listed | Listed | Listed | Listed | By material ## Results, agents and case studies, material by material. Each page collects AMT’s published results for that material, with the grade and process they were measured on. - Nylon MJF · SLS · SAF · HSS ### [PA12](https://amtechnologies.com/materials/pa12/) Dimensional, strength and sealing results. - Nylon MJF · SLS · SAF · HSS ### [PA11](https://amtechnologies.com/materials/pa11/) Food-contact validation on DETECT PA11. - Elastomers MJF · SLS · SAF · HSS ### [TPU and TPE](https://amtechnologies.com/materials/tpu/) Ultrasint TPU01 roughness and the GM seals. - Polyolefin MJF · SLS ### [Polypropylene](https://amtechnologies.com/materials/polypropylene/) The dedicated FA9202 agent. - Machined CNC ### [Machined plastics](https://amtechnologies.com/applications/vapor-polishing-machined-plastics/) PC, PMMA, ABS, PSU, PEI and nylon on the SF100. - Process MJF · SLS · SAF · HSS · FDM ### [By printing process](https://amtechnologies.com/learn/) What vapor smoothing does on each printer type. Questions ## Materials: questions. Short answers from AMT’s published material lists. Anything else, [ask an engineer](https://share.hsforms.com/1lOH82JpuRdSM-4wJ1ZeYlw45o6d?website_source=Vapor+Smoothing&utm_source=amtechnologies.com&utm_medium=material-page&utm_campaign=site-2026&utm_content=materials-talk). ### What materials can be vapor smoothed? With PostPro: PA12, PA11, TPU, TPE and polypropylene from powder-bed printers, industrial FDM materials such as ULTEM and Onyx, machined plastics, and 100+ thermoplastics[1] with FA326 on the SF50 and SF100. ### Can glass- or carbon-filled parts be vapor smoothed? Filled PA12 grades from MJF and SLS are listed with PostPro Pure and FA326, and carbon-filled Onyx from FDM is listed too.[1,3] Send a part in your grade to confirm the finish. ### Which finishing agent do I need for my material? PostPro Pure covers the nylons, TPU and ULTEM in every PostPro system, and machined plastics on the SF100; FA326 covers 100+ thermoplastics[1] on the SF50 and SF100; FA9202 is for polypropylene. ### Can machined plastic parts be processed? Yes: Polycarbonate (PC), acrylic (PMMA), ABS, polysulfone (PSU), PEI (ULTEM™) and nylon (PA)[8] are vapor polished on the PostPro SF100 with PostPro Pure. Next step ## See the price. Run the numbers. Hold the part. List prices are public and the cost-per-part math is yours to check, with no email needed for either. The free benchmark puts your own parts, vapor smoothed, in your hands. 1. 01 Quote ### Build your quote Pick a system and its options and get an itemized total on screen, from AMT’s published list prices. [Build your quote](https://amtechnologies.com/quote/) 2. 02 ROI ### Calculate your ROI Compare your cost per part with manual finishing, using your own labor rate and volumes. Every assumption is editable. [Calculate ROI](https://amtechnologies.com/roi/) 3. 03 Benchmark ### Test your parts, free Ship us your parts with a prepaid label. We vapor smooth them and send them back with before-and-after photos and a benchmark report. [Test your parts, free](https://benchmarking.amtechnologies.com/submit?utm_source=amtechnologies.com&utm_medium=material-page&utm_campaign=site-2026&utm_content=materials-decision) No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks[2] Prices: AMT list prices, excluding tax and shipping; confirmed in your formal quote. [Not sure which system? Help me choose](https://amtechnologies.com/configurator/) ## Sources 1. [Vapor smoothing consumables: PostPro Pure (FA5802), FA326 and FA9202](https://amtechnologies.com/products/vapor-smoothing/consumables/) · AMT · read Oct 6, 2026 2. [PostPro benchmarking: send us your 3D printed parts](https://benchmarking.amtechnologies.com/) · AMT · read Oct 6, 2026 3. [AMT PostPro brochure: automated post-processing systems for additive manufacturing, V4.0 (June 2026)](https://info.amtechnologies.com/download-document?document_name=brochure) · AMT · Jun 2026 4. [PostPro compatible material list: PostPro Pure, FA5802, V3.2](https://6983077.fs1.hubspotusercontent-na1.net/hubfs/6983077/Website/Specification%20Sheets/AMT_MATERIALS_POSTPRO_SF_PURE_EN.pdf?ver=2) · AMT · Nov 2024 5. [PostPro compatible material list: FA326, V6.1](https://6983077.fs1.hubspotusercontent-na1.net/hubfs/6983077/Website/Specification%20Sheets/AMT_MATERIALS_POSTPRO_SF_FA326_EN.pdf?ver=2) · AMT · Apr 2025 6. [PostPro compatible material list: PostPro SFX, FA5802, V9.0](https://6983077.fs1.hubspotusercontent-na1.net/hubfs/6983077/Website/Specification%20Sheets/AMT_MATERIALS_POSTPRO_SFX_EN.pdf?ver=2) · AMT · Dec 2025 7. [Vapor smoothing: SF and X-series family page and SFX, SF2X, SF50, SF100 product pages](https://amtechnologies.com/products/vapor-smoothing/) · AMT · read Oct 6, 2026 · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sfx-desktop-vapor-smoothing-system/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf2x/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf50/) · also [AMT](https://amtechnologies.com/products/vapor-smoothing/postpro-sf100/) 8. [AMT company statement: SF100 + PostPro Pure vapor polishing of machined plastics (PC, PMMA, ABS, PSU, PEI, PA)](https://amtechnologies.com/applications/vapor-polishing-machined-plastics/) · AMT · Oct 6, 2026