The short answer
In molding resins, PFAS usually shows up in three places: PTFE-lubricated wear grades, flame-retardant grades that use PTFE as an anti-drip agent, and fluoropolymer processing aids in film and pipe extrusion. PFAS-free options exist for all three, but few are exact drop-ins. Start by asking your supplier which of your grades contain intentionally added PFAS, then test the alternatives in your part.
PFAS rules are tightening, and many OEMs are asking for PFAS-free materials before any law requires it. Here is where PFAS hides in the resins molders buy, what replaces it, and how to switch without surprises.
Where PFAS hides in molding resins
| Where | Typical resins and parts | The PFAS ingredient |
|---|---|---|
| PTFE-lubricated wear grades | Nylon, acetal, PC, PBT, PPS and PEEK gears, bushings, slides and wear strips | PTFE powder, often 5–20% |
| Flame-retardant grades | PC, PC/ABS and PBT for electrical housings and connectors | A small amount of PTFE as an anti-drip agent so burning parts do not drip |
| Extrusion processing aids | PE film, pipe, sheet and some PP | Fluoropolymer processing aid at parts-per-million levels to prevent melt fracture |
| Fluoropolymer resins | Seals, linings, wire insulation, chemical-handling parts | PTFE, PVDF, PFA, FEP and ETFE are themselves PFAS |
| Shop-floor chemicals | Mold release sprays, some lubricants | Fluorinated mold releases and greases |
Fluoropolymers like PTFE are counted as PFAS under the broad definitions used by Minnesota, Maine and the proposed EU restriction, even though they are solid, stable plastics.
PFAS-free alternatives
| Use | PFAS-free options | Trade-offs |
|---|---|---|
| Wear and friction (PTFE lube) | Silicone, UHMW-PE, aramid fiber, graphite, MoS2; or a slippery base resin such as acetal, polyketone or PA46 | Rarely a drop-in at high load and speed. Silicone can affect painting, bonding and electrical contacts. Test wear in the part. |
| Anti-drip in flame-retardant grades | Non-PTFE anti-drip systems; some non-halogen flame-retardant PC and PC/ABS grades reach V-0 without PTFE | Rating depends on thickness. A new grade needs its own UL listing. |
| Processing aid in PE film and pipe | Silicone-based or organic (non-silicone) processing aid masterbatches | May need a higher dose and longer conditioning. Metallocene grades are harder. Some customers screen for silicone. |
| Fluoropolymer parts | PEEK, PPS, PEI, polyketone, UHMW-PE or PP, depending on chemicals and temperature | Usually no full drop-in for PTFE’s chemical resistance and friction. Many uses may qualify as currently unavoidable. |
| Mold release | Silicone or non-silicone organic releases | Silicone can interfere with painting and printing. |
Where the rules stand (October 2026)
| Where | Status |
|---|---|
| United States, federal | No ban on PTFE in industrial parts. TSCA PFAS reporting start moved to no later than Jan. 31, 2027; EPA has proposed exemptions for imported articles and low concentrations. |
| Minnesota | Intentionally added PFAS banned in 11 product categories since Jan. 2025. Product reporting was due July 1, 2026. All products by 2032 unless a use is currently unavoidable. |
| Maine | More product categories banned from Jan. 2026. All products with intentionally added PFAS by 2032 unless a use is currently unavoidable. |
| European Union | Universal PFAS restriction, including fluoropolymers, under review. Committee opinions in 2026; a decision is not expected before late 2027, and it would not apply before about 2029. Separately, intentionally added PFAS is banned in food-contact packaging from Aug. 12, 2026. |
| Your customers | Often the real deadline. Many OEMs now ask for PFAS declarations or PFAS-free materials on new programs, ahead of any law. |
Summary for planning only, not legal advice. Rules and dates change; confirm with your compliance advisor.
How to switch, step by step
- Inventory. List every grade you buy and ask each supplier for a written PFAS declaration: is any PFAS intentionally added, and what does it do?
- Know the function. Wear, anti-drip, processing aid or the base resin itself. The function decides the alternative.
- Pick candidates. Use the table above, and ask for PFAS-free versions of your current grades first. They are the easiest to qualify.
- Test in your part. Wear and friction testing for lubricated grades, UL 94 at your thickness for flame-retardant grades, line trials for film.
- Requalify. A new grade usually means a new UL listing, PPAP or food-contact check. Build that time into the switch.
- Keep the paperwork. Customers and regulators will ask. File the declarations and test results by part number.
How we can help
Send the grade you run now, and a polymer chemist will tell you whether it is likely to contain PFAS and suggest PFAS-free options to quote and test, for lubricated, flame-retardant and fluoropolymer grades. See also wear and friction fillers, flame-rated resins and fluoropolymers.
Sources
Compiled from published legal and trade summaries, including TSCA PFAS reporting delayed again (April 2026), ECHA committees advance PFAS restriction (March 2026), 2026 state PFAS restrictions and Maine expands PFAS ban in 2026.
Common questions
Is PTFE banned in plastic parts?
Not in the U.S. as of October 2026. No federal rule bans PTFE in industrial parts. Minnesota and Maine ban intentionally added PFAS in certain consumer product categories now, with broader bans planned for 2032 unless a use is declared currently unavoidable. The EU is still deciding on a universal PFAS restriction that includes fluoropolymers; it is not expected to apply before about 2029.
Does my glass-filled or lubricated grade contain PFAS?
Glass fiber does not. PTFE-lubricated wear grades and many flame-retardant grades (which use a small amount of PTFE as an anti-drip agent) do. The only reliable way to know is to ask your supplier for a PFAS declaration for each grade, stating whether any PFAS is intentionally added.
What replaces PTFE in wear grades?
Silicone, UHMW polyethylene, aramid fiber, graphite and molybdenum disulfide are the common PFAS-free lubricants. Base resins that are slippery on their own, like acetal, polyketone and PA46, are also options. None is an exact drop-in for PTFE at high loads and speeds, so test wear in your part.
Can flame-retardant polycarbonate be PFAS-free?
Yes, several PFAS-free flame-retardant PC and PC/ABS grades are now sold, using non-PTFE anti-drip systems. Check the UL 94 rating at your wall thickness. A new grade needs its own UL listing, so plan for requalification.
Do I have to report PFAS to the EPA?
The federal TSCA PFAS reporting rule is still being revised. In April 2026 EPA moved the start of reporting to no later than January 31, 2027, and proposed exemptions for imported articles and low concentrations. Minnesota’s product reporting was due July 1, 2026. Check with your compliance advisor; this is not legal advice.
What should I ask my resin supplier?
Ask for a written PFAS declaration for each grade (is any PFAS intentionally added, and what is it for), whether a PFAS-free version exists, and whether the PFAS-free version carries the same UL, food-contact or automotive approvals.
Tell us the grade you run now
A polymer chemist reviews every request, then matches your grade or finds a qualified equivalent and prices it.
What to send for an accurate quote
- The grade name, from any supplier, or a data sheet
- Color (natural, black or a custom match)
- Fill type and percentage, if any
- Melt flow, if you know it
- Quantity for this order and what you use in a year
- Ship-to city and state or province