Market overview

Toluene diisocyanate (TDI, CAS 584-84-9 for 2,4-TDI; most trade is the 80/20 isomer mix) is the isocyanate behind flexible polyurethane foam for mattresses, furniture and car seats. It is a large commodity with Chinese capacity growth, European closures and a cyclical price.

The question this report answers
Will new Asian TDI capacity keep prices low, and which Western plants are at risk?

Market Krystal preliminary estimate (2025)
GMI values TDI at USD 5.0 bn (2025). A volume check (2.7-3.0 Mt at USD 1,600-2,000/t) supports USD 4.5-5.5 bn. Confidence grade A: two or more independent sources agree, or the range rests on government or company data.

Market dynamics
– Demand: flexible foam for furniture, bedding, automotive
– Supply: Wanhua, BASF, Covestro, Hanwha, Sadara
– Price and margin: cyclical, set by Chinese supply
– Regulation and substitution: EU diisocyanate training rules

Key figures at a glance (third-party, cited)
– TDI market: USD 5.0 bn (2025), USD 5.2 bn (2026), USD 8.3 bn by 2035 at 5.2% CAGR; TDI 80/20 72.4%; flexible foam 78.3% (Global Market Insights)
– Wanhua holds about 36% of global TDI nameplate capacity; BASF about 18% and Covestro about 15% of revenue (Global Market Insights)

Recent developments among key stakeholders
– Aug 2025: about 360,000 t/yr of new integrated TDI capacity came on stream in East Asia (Global Market Insights)

What this means for the market
New Asian capacity keeps pressure on prices. European producers are rationalising; foam makers have more import options.

How published estimates compare
GMI puts North America at 54.2% of TDI value, which looks high given where capacity and foam production sit. Market Krystal reports tonnes by region and reconciles against trade data.

Strategic scenarios to 2047
– Base: insulation, furniture, automotive and coatings demand grows with construction and vehicles; Chinese capacity sets prices and Western producers consolidate.
– Constrained supply: European closures and ownership changes leave fewer suppliers; outages and antitrust remedies cause regional price spikes.
– Technology transition: bio-based and non-isocyanate polyurethanes, low-monomer and waterborne systems take share in sensitive applications.
The swing factor for Toluene diisocyanate (TDI) is new Asian capacity vs. European closures. Signposts: European plant closures, M&A and antitrust decisions, building energy codes, NIPU commercial launches.

What this report delivers
Annual volume (tonnes) and value (USD) for 2026-2035, segmented by product: TDI 80/20, 65/35, pure 2,4-TDI, modified grades; application: flexible foam, coatings, adhesives, elastomers; region: China, Europe, North America, Middle East, India. Each segment is backed by a producer capacity table, price benchmarks for 2020-2025 by grade and region, trade-flow analysis and a supplier risk map. Companies assessed include Wanhua Chemical, BASF, Covestro, Hanwha Solutions, Sadara, GNFC, Cangzhou Dahua. The 2036-2047 outlook uses three explicit scenarios (base, constrained supply and technology transition) rather than a single extrapolated curve.

Who uses this report
Foam producers, isocyanate producers and chemical investors.

Why our approach is evidence-based
Most CAS-level market listings publish a single number with no audit trail, and we regularly find figures that contradict their own growth rates or exceed the size of the market they sit inside. Market Krystal works the other way round. We start from physical evidence: plant capacities, production and trade data, company disclosures, regulatory texts and price records. We build volume and price separately and only then compute value. Every third-party figure is cited, every Market Krystal estimate is labelled with its method and a confidence grade, and conflicts between sources are shown rather than hidden. Confidence grades: A = two or more independent sources agree, or government or company data; B = one published estimate checked against volumes or prices; C = no reliable published figure, so the range is built from stated assumptions and narrowed in the full report.

Methodology and delivery
Prepared by the Market Krystal Chemicals Research Team. Each report is built around the buyer’s question: after purchase, a short scope confirmation fixes the priority regions, companies and applications, and the report is delivered within 5-7 business days with the Excel model behind every estimate, so buyers can audit and change the assumptions.

The purchased delivery includes the PDF report, Excel datasets and customization around the buyer’s priority region, company set, application or commercial question.

What this research answers

The study connects production routes, named suppliers, applications, regional demand, trade, pricing drivers and commercial opportunities for this CAS number. Detailed estimates and company analysis remain inside the purchased report.