2026-08-24 by Lucia Bianchi

Toray FAQ: Carbon Fiber Market Share 2024, T1100G Tensile Strength, Tech Fleece & Upholstery Repair

Ask anyone in the advanced materials business what Toray questions come up most, and you'll get some version of the list below. I work in quality and brand compliance at Toray — I review material lots before they ship, which adds up to roughly 200+ unique items a year. I've rejected about 6% of first deliveries in 2024 for spec deviations. That might sound strict, but one rejected batch is a boring paper trail; the failure it prevents is the expensive story nobody wants to tell. So here are the straight answers, from a production-floor perspective rather than a marketing one.

What does Toray actually do?

Toray Industries is a Japanese advanced materials manufacturer, and it's probably in more places than you realize. The three product families I deal with most are carbon fiber and composites, reverse osmosis membranes for water treatment, and functional textiles. If you've flown on a commercial jet, driven a premium car, or used water from an industrial treatment plant, Toray materials were very likely part of that chain — not in a secretive way, just in the mundane way good materials show up inside finished products.

From where I sit, the product range is less interesting than the consistency requirement. A carbon fiber spool headed for an aerospace program and a membrane roll headed for a desalination plant both have to hit their declared specs before I sign off. Every lot, every time. That discipline is the brand in practice.

What is Toray's carbon fiber global market share in 2024?

Published industry analyses differ on the exact figure, but the ballpark is: Toray is commonly cited as holding around 30 percent of the global carbon fiber market. Some estimates run higher when you count only PAN-based carbon fiber; some run lower when you include recycled or commodity-grade material. The bottom line, though, is consistent — Toray has held the #1 position in carbon fiber production for years, and that was still true through 2024.

Here's what I'd add as someone who checks tensile strength and modulus on every lot that ships: market share is a lagging indicator. The reason OEMs keep Toray in their specs isn't the pie chart. It's that a spool labeled T700 behaves like T700, from the first batch to the five-hundredth. There's something quietly satisfying about a lot that lands exactly on spec after the full test sequence — it's boring, and boring is the point.

If you're a smaller company qualifying a new material source, I'd focus less on the global number and more on whether the specific grade you need comes with traceability and test data. Global share won't help you if the lot you received is a bad match for your process.

What is the tensile strength of Toray T1100G?

Toray's published datasheet for T1100G lists a tensile strength of about 6,600 MPa (6.6 GPa) and a tensile modulus of 324 GPa. For context, T800S — already a workhorse across aerospace programs — comes in at roughly 5,880 MPa. So T1100G is a solid step up, which is why you're seeing it specified in higher-performance airframe and automotive applications.

The value I check second is strain-to-failure, around 2 percent for T1100G. A fiber that's super strong but doesn't flex is trouble in a composite, because real parts handle complex loads. Strength plus strain — that combination is what makes T1100G stand out in the intermediate-modulus range.

One caveat: I can only speak to published specs and what I've seen in incoming lot testing. Actual laminate performance depends on the resin matrix, layup, and process. And just to preempt the next question: no, T1100G isn't right for every application. It's a premium grade, and specifying it where a mid-range fiber would do is over-engineering — something I see more often than you'd expect.

What's the recommended fiber per day?

This heading splits into two questions, because people search it both ways. If you're here about nutrition: standard guidance puts dietary fiber at about 25 grams per day for adult women and 38 grams per day for adult men — roughly 14 grams per 1,000 calories. The FDA's Daily Value for fiber on a 2,000-calorie diet is 28 grams. I want to be straight with you: this is not my field. I do not want anyone making diet decisions based on an article by a textiles quality guy. Check with a nutritionist or your doctor.

If you're here about fiber in the engineering sense — how much carbon fiber or textile fiber you need for a production schedule — that's my territory. But "recommended per day" doesn't apply. Throughput depends on line capacity, ply schedules, prepreg width, and part geometry. There's no daily allowance for manufacturing; there's just the right spec for your job.

Does Toray make a hoodie tech fleece?

Not exactly. Toray doesn't sell finished hoodies to consumers, so if you're looking for a brand to buy one from, you're looking at the wrong company. What Toray does make is engineered fabric, and apparel brands use that fabric to build tech fleece pieces. So the honest answer is "no" as a brand, and "very likely yes" somewhere in the supply chain.

Tech fleece itself is a synthetic knit — typically polyester with some elastane — designed to feel like a warm hoodie while acting like a technical layer. The brushed inner surface traps body heat, the smoother face sheds wind, and the stretch lets you move through a normal day without feeling wrapped in a tent.

Since quality review of functional textiles is part of my job, here's what I'd inspect on any tech fleece: knit uniformity, how evenly the brushing is applied, seam slippage on the shoulders and cuffs, and pilling resistance after repeated washes. And if a brand claims the fleece is "recycled" or "eco," per FTC Green Guides (ftc.gov, 16 CFR Part 260), that claim has to be substantiated — ask them to show you the evidence. The good suppliers will have it ready.

One more thing for the smaller brands reading: a test order of fabric goes through the same quality review as a container from a major OEM. We don't lower the bar for smaller runs; we just adjust the paperwork. Today's fifty-yard sample might be tomorrow's fifty-thousand-yard production order, and we treat it that way.

What's the best fabric glue for upholstery?

I get this one a lot, usually from someone staring at a torn couch cushion and hoping for a magic fix. Let me save you the money: rigid super glue is the wrong answer. It dries hard, woven fabric flexes every time someone sits down, and the joint cracks. Then you've got dried glue plus a tear — a worse repair than the original problem.

Look for a fabric adhesive labeled flexible and clear-drying. Apply a thin layer to both edges, press them together, and wait the full cure time written on the tube. Not five minutes — the full time. That's the boring but correct answer.

Honestly, for a small tear, a needle and thread beats glue almost every time. A hand-sewn repair takes about ten minutes, and the mechanical bond holds up better under repeated stress. I review bonded and stitched assemblies regularly — or rather, I review the glued ones more carefully, because they fail more often than sewn seams. That pattern has held up across hundreds of lots.

Scope note: this applies to standard woven upholstery fabric. Leather, vinyl, and performance outdoor textiles need different adhesives. And if you're repairing something with a membrane layer, that's a different conversation entirely.