Material focus
PPA selection, applications, and sibling resin routing on this page.
PPA
PPA Injection Molding: Properties, Applications and Design Guide
PPA is used on injection molded programs when high-heat polyamide beyond nylon 66 limits.
PPA
When to specify PPA
How procurement and design teams use PPA on injection molded programs.
PPA is the high-heat polyamide for connectors and for automotive or electrical parts when nylon 66 is past its limit. Buyers specify the commercial grade on the PO when known, or describe service temperature, chemical exposure, and mechanical targets so engineering can suggest a candidate resin. Quote with CAD and resin notes on the instant quote platform. NetProto builds one hardened steel tool with no minimum order quantity for production parts.
PPA vs PA66 is the usual split. Stay with PA66 when that grade still holds the heat and the chemical exposure. Move to PPA when it does not. See the Nylon 66 injection molding guide .
Key traits
Why buyers specify PPA
Engineering and sourcing highlights. No NetProto processing numbers on this page.
Sourcing
Grade and compliance context travels with CAD on the instant quote platform.
Program fit
First articles through production on one steel tool, no MOQ.
NetProto platform
Instant CAD quoting and DFM feedback before tooling release.
Tooling lead time
10 business days on qualified programs, depending on part size and complexity.
Common grades
Common PPA (Polyphthalamide) grades by use case
Pick one of these on the instant quote, or name any other commercial grade in the RFQ notes.
| Use case | Example grade | Typical parts |
|---|---|---|
| 16% glass fiber | Amodel AT-1116 HS | Bearings, housings, and press-fit structural parts |
| 33% glass fiber | Amodel AS-1133 HS | High stiffness parts in hot and chemical environments |
| Flame retardant connector | Amodel HFFR-4133 | Surface mount connectors and large electrical parts |
| 30% GF flame retardant | Zytel HTNFR52G30NH | Halogen-free FR structural electrical components |
| Connector / SMT | Amodel AFA-6133 V0 | Automotive and electronics connectors for reflow soldering |
Applications
Where this resin shows up on BOMs
Typical molded parts and what to specify on the purchase order.
| Application | Why this resin | Specify on the PO |
|---|---|---|
| Typical molded parts | High-heat polyamide beyond nylon 66 limits. | PPA grade or family name on PO |
| Secondary features | Confirm fillers and color on datasheet | Compliance filters as requirements |
| Validation builds | First articles on production steel tool | Volume notes for cavity planning |
RFQ
Ready to quote? Have this information ready
Not sure whether the part is past PA66? See the comparison above. Prepare these details, then upload CAD on the instant quote platform.
State PPA grade when known, or describe mechanical and chemical targets
Attach compliance or environmental filters required by your team
Note cosmetic class on visible surfaces
Commercial grade, or the use case to match (30% GF, flame retardant, connector / SMT, heat stabilized)
Expected annual volume (helps cavity and tool planning)
Optional: target piece-price band for sourcing discussions
Next step
Upload CAD for an instant quote
Grade not finalized? Note PPA on the RFQ and attach environment notes.
Compare and explore
Related guides
Pairwise comparisons and sibling material pages.
Materials library
Browse all resin guides.
Materials library
Instant quote
Upload CAD for pricing and DFM.
Instant quote
Reading a material datasheet
What the TDS (Technical Data Sheet) values mean for a molded part.
Reading a material datasheet
Specify resin grade on an RFQ
How to write grade, color, and fillers so the quote matches the part.
Specify resin grade on an RFQFAQ
PPA injection molding FAQ
When should I choose PPA?
Choose PPA when the heat or chemical exposure is past what the PA66 grade can hold. Connectors and automotive or electrical hardware are the usual parts. The continuous-use limit stays on each supplier datasheet.
Does this resin require drying?
Follow the supplier TDS for the exact grade. At NetProto, attach the datasheet when moisture-sensitive fillers are used.
What is the minimum order quantity for molded parts at NetProto?
NetProto has no minimum order quantity on molded parts from your production tool. Upload CAD on the instant quote platform to scope tooling and part pricing for your volume.
How do I quote this resin without a final grade selected?
List the resin family on the RFQ, attach environment notes, and upload CAD. Engineers narrow grades during DFM review.
How fast can tooling start for a PPA part?
NetProto builds the hardened steel tool in about 10 business days on qualified programs, depending on part size and complexity. Upload CAD on the instant quote platform to start DFM review.
Next step
Quote PPA parts with your CAD
Upload geometry and list PPA or the target grade on the instant quote platform.