Delrin AF 100 is a PTFE-filled acetal homopolymer developed for parts that operate in motion. It is selected when designers need Delrin’s dimensional stability and machinability, but want better lubricity and wear behavior than standard unfilled acetal can provide.
In practical terms, it is most valuable when the part slides, rubs, cycles, or guides another surface. That makes it a strong option for precision bushings, wear components, and custom machined parts where smoother movement is the priority.
Best-Fit Design Priorities
Key Takeaways
Branded for Emco Plastics, this page highlights where Delrin AF 100 fits best: moving components that need low friction, reliable wear performance, and precise machinability.
Key Benefits
Low Friction
PTFE-filled Delrin AF 100 is built for sliding contact, helping reduce stick-slip and improve running performance in moving assemblies.
Long Wear Life
A strong choice for bushings, wear strips, guides, and liners where consistent surface performance matters over time.
Machinable
Combines Delrin’s proven dimensional stability and machinability with added lubricity for demanding fabricated parts.
Engineered for Motion
Best suited for components where friction and wear are bigger design drivers than maximum structural strength.
Common Uses
When to Choose It Over Standard Acetal
Pick Delrin AF 100 when the part lives in motion: sliding contact, repetitive travel, or surface-to-surface interaction. In those environments, lower friction and improved wear can deliver better long-term value than using an unfilled grade.
For static blocks, heavily loaded structural parts, or applications driven primarily by stiffness, a standard Delrin grade may still be the better fit. Emco Plastics can help evaluate the balance between wear performance, strength, machinability, and total part life.
A simple path for deciding whether Delrin AF 100 is the right call for your application.
Step 1: Define the Motion
Identify sliding, oscillating, or start-stop contact where friction reduction creates the biggest payoff.
Step 2: Check the Load
Use AF 100 where wear and lubricity matter most, while confirming the part does not require the highest available impact or structural strength.
Step 3: Match the Geometry
Ideal for pads, guides, bushings, and custom machined shapes where a clean, stable engineering plastic is preferred.
Step 4: Fabricate with Emco
Source material, machining support, and application guidance through Emco Plastics for production-ready parts.
Best Application Profile
Precision motion parts with wear-driven performance targets:
Emco Plastics can help evaluate Delrin AF 100 for stock shapes, fabrication, and machined part programs. Use this page as a branded sales or technical starting point for customers comparing low-friction engineering plastics.
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