Materials · Polypropylene

Vapor smoothing polypropylene (PP) parts.

Polypropylene vapor smoothing reflows the rough surface of a 3D printed PP part into a smoother, closed skin. Polypropylene resists the agents that smooth nylon, so PostPro uses a dedicated one: FA9202. PostPro systems smooth PP printed by MJF · SLS1.

Test your parts, free Get a price

No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks2

FA9202 polypropylene finishing agent canister
RenderFA9202, the PostPro finishing agent for polypropylene.
Finishing agent
FA92023
Dedicated to polypropylene
Systems
SFX, SF50, SF1001
FA9202 listed
Processes
MJF · SLS1
Polypropylene

Why PP is different

Chemically resistant, so it needs its own agent.

Polypropylene is light, tough and resistant to many chemicals, which is why it is printed for fluid parts, clips and housings. The same resistance means an agent tuned for nylon will not smooth it.

  1. A dedicated agent

    Dedicated consumable for finishing polypropylene parts3: FA9202, listed for the SFX, SF50, SF100.

  2. A closed, cleanable surface

    Reflowing the surface closes the open texture of printed PP, so parts are easier to clean and look finished.

  3. Published on two PP powders

    AMT has published vapor smoothing whitepapers on BASF Ultrasint PP and on Ricoh PP printed by SLS.

  4. Same four-stage cycle

    Conditioning, processing, curing and drying, as for every PostPro material.4

Agents and systems

Which machine runs FA9202.

Polypropylene from MJF and SLS runs with FA9202. AMT lists FA9202 for the SFX, SF50 and SF100; for the SF2X, ask.

Polypropylene by printing process and finishing agent
ProcessMaterialPostPro PureFA326FA9202
MJFPolypropylene3Not listedNot listedListed
SLSPolypropylene3Not listedNot listedListed

Listed by AMT— Not listedPostPro Pure runs in every PostPro system; FA326 on the SF50 and SF100; FA9202 for polypropylene.

Material lists as published on each PostPro product page.1

BASF Ultrasint PP whitepaper Ricoh PP whitepaper PostPro consumables

Questions

Polypropylene vapor smoothing: questions.

Short answers from AMT’s published material lists. Anything else, ask an engineer.

Can polypropylene 3D prints be vapor smoothed?

Yes. Polypropylene printed by MJF · SLS1 is vapor smoothed on PostPro systems with the dedicated FA9202 agent.

Which consumable is used for PP?

FA9202. Dedicated consumable for finishing polypropylene parts3.

Which PostPro machines run FA9202?

AMT lists FA9202 for the SFX, SF50, SF1001. Confirm the configuration for your machine with AMT, especially for the SFX and SF2X.

Why can’t PP use the same agent as nylon?

Polypropylene resists the agents that smooth nylon and other polar plastics, so it needs an agent chosen for it.

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. 01Quote

    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

  2. 02ROI

    Calculate your ROI

    Compare your cost per part with manual finishing, using your own labor rate and volumes. Every assumption is editable.

    Calculate ROI

  3. 03Benchmark

    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

    No cost to evaluate · Parts returned · Typical turnaround 2–3 weeks2

Prices: AMT list prices, excluding tax and shipping; confirmed in your formal quote.

Not sure which system? Help me choose