Chemours, Teflon Coatings, and Pigment Chemistry: 7 Questions I Learned the Hard Way

Nine years handling raw material selection for industrial coatings and plastics. I've personally made — and documented — about a dozen significant mistakes, totaling roughly $25,000 in wasted material, rework, and delays. Now I maintain my team's material selection checklist to prevent others from repeating my errors. These are the questions I get asked most often, along with what I learned the hard way:

• What does Chemours actually make?
• What's the difference between Teflon and other fluoropolymers?
• What are Teflon coatings used for in industrial settings?
• Why does my wood coating finish keep failing?
• What are plasticizer polymer products?
• What is red pigment made from?
• Does Teflon still contain PFOA?

1. What does Chemours actually make?

Chemours is a chemical company spun off from DuPont in 2015. If you work in manufacturing, paint formulation, or industrial coating application, you've probably used their materials without realizing it. The best-known brands are Teflon (fluoropolymer coatings and resins) and Ti-Pure (titanium dioxide pigment). They also produce Opteon refrigerants, Krytox lubricants, Nafion membranes, and a range of specialty chemicals.

What took me a while to grasp is that Chemours is purely a B2B supplier. You don't buy direct from them for a small project — you work with a distributor or an applicator who uses their materials. Which, honestly, confused me in my first year. I kept looking for a retail store that sold Teflon coating. There isn't one.

2. What's the difference between Teflon and other fluoropolymers?

This is the first question I ask every customer, because the answer changes the entire specification. Teflon is a brand name, not a single material. The fluoropolymer family includes:

• PTFE — the classic, highest temperature rating, hardest to apply in thin films
• FEP — melts and flows during cure, easier to apply, lower temperature limit
• PFA — processability similar to FEP, better chemical resistance
• ETFE — mechanically tougher, used in more demanding structural applications

I learned this the expensive way in 2018. I specified a "fluoropolymer coating" for a chemical pump housing without naming the specific polymer. The applicator, quite reasonably, used a general FEP product. The process environment required PFA's chemical resistance. Eight weeks later, the coating was blistering. That mistake cost about $3,200 in rework plus the customer's downtime.

The lesson, which I now include in our spec template: never spec by family name. Name the exact polymer.

3. What are Teflon coatings used for in industrial settings?

Most people think non-stick cookware. That's a tiny slice of the market. In industrial applications, I've specified Teflon coatings for:

• Chemical processing equipment — tanks, valves, pump internals
• Release surfaces — molds, rollers, hoppers that need to shed material
• Automotive components — seals, gaskets, some fasteners
• Semiconductor manufacturing parts that need chemical resistance

The value proposition is consistent: release, low friction, chemical resistance, temperature tolerance. But the operating environment matters more than any datasheet value. A coating that lasts years in dry heat may fail in months when exposed to a chemical vapor.

So glad I now ask about the full environment before recommending a system. I almost sent a customer a standard cure schedule that would have damaged their aluminum substrate — the cure temperature was borderline for the alloy. Caught it during a design review and saved a very expensive rework.

4. Why does my wood coating finish keep failing?

Wood coating failures usually trace back to one of three things:

1. Moisture content above 12% when the coating is applied
2. Missing primer on resinous woods — cedar, redwood, southern yellow pine
3. Coating applied too thick, trapping solvent and causing blisters

To me, the most common mistake is skipping the primer to save a step. I did it myself on an exterior wood project in 2021. The finish looked great for three months, then peeled off in sheets. The redo cost more than the primer would have, and I had to explain that the "coating failure" was actually a process failure. That conversation was not fun.

One question I get a lot: why does Teflon coating matter for wood? It usually doesn't. A wood coating finish and a fluoropolymer coating are different worlds. If you need a clear exterior wood finish, you're typically looking at polyurethane, acrylic, or alkyd systems. Fluoropolymers can be used in some exterior wood applications, but they're rarely the right first choice. (Not that I won't clarify when a customer asks — the question usually comes from confusing "Teflon coating" as a cookware concept with "wood finish" as a product category.)

5. What are plasticizer polymer products?

Honestly, I didn't understand this term for a while. Plasticizers are compounds added to polymers to increase flexibility. PVC is the classic example: rigid pipe vs. flexible tubing is mostly plasticizer content.

The catch is compatibility. A plasticizer that works in PVC may not work in polyester, polyamide, or fluoropolymers. And critically — a poorly matched plasticizer can migrate to the surface, causing stickiness, exudation, or contamination in sensitive processes.

When someone asks about plasticizer polymer products in a Chemours context, the conversation usually goes differently than they expect. Chemours doesn't make commodity plasticizers like phthalates. Their polymer portfolio is built around fluoropolymers and fluoroelastomers that achieve flexibility through molecular structure rather than external additives. That means no plasticizer migration, no extraction by solvents, and no loss of flexibility at temperature.

I'm not 100% sure of current market pricing, but specialty fluoroelastomers are always more expensive upfront than plasticized PVC. The total cost of ownership is usually lower, though, when you account for downtime. Take this with a grain of salt — this is a niche within a niche — but I've seen chemical plants switch from plasticized PVC tubing to a fluoropolymer system and never look back.

6. What is red pigment made from?

A simple question with a surprisingly layered answer. Red pigments come from several families:

• Iron oxide (synthetic) — the workhorse red, inexpensive, very durable, inherently opaque
• Cadmium red — bright and lightfast, but restricted in many consumer products due to toxicity
• Azo reds — the most common organic reds, derived from petroleum-based intermediates; huge shade range
• Quinacridone — high-performance reds and magentas with excellent durability
• Perylene — another high-performance family, common in automotive and exterior coatings

If you're formulating a red coating or a red plastic part, you'll likely start with a white base — often titanium dioxide pigment such as Chemours Ti-Pure — to build opacity and brightness, then tint with red. The TiO2 level dramatically affects the final shade: too much white base and the red goes pastel; too little and it looks muddy.

Regulatory considerations matter too. Cadmium red is restricted in many jurisdictions, and some azo pigments face scrutiny for potential breakdown into regulated amines. I once specified a cadmium red for a plastic that needed RoHS compliance — that mistake cost $450 plus a two-week delay. Check the compliance requirements before you fall in love with a color.

7. Does Teflon still contain PFOA?

This is the question I wish more people asked, because the answer surprises them. The "Teflon contains PFOA" concern traces back to when PFOA was used as a processing aid in PTFE manufacturing. Chemours has publicly stated that they completed their PFOA phase-out by 2015. The Teflon coatings I specify today don't contain PFOA as a component.

To be clear, the historical concern was valid. PFOA did enter the environment through legacy manufacturing, and the regulatory response was justified. But the conclusion many people drew — "Teflon cookware is toxic" — never matched the evidence. This was true years ago when the old manufacturing process used PFOA. Today, the chemistry moved on.

Per FTC guidelines (ftc.gov), claims about a product's safety or environmental attributes need to be substantiated. That cuts both ways: suppliers can't toss around "PFOA-free" without evidence, but buyers also can't assume a product from a major manufacturer still uses a chemical the industry phased out years ago.

From my perspective, coating failures are almost never caused by trace chemistry in the raw polymer. They're caused by surface preparation, cure schedule, or environmental mismatch. Those are the things worth losing sleep over.