Market overview

Diphenyl(2,4,6-trimethylbenzoyl)phosphine oxide (TPO, CAS 75980-60-8) is a photoinitiator that cures thick and pigmented UV coatings, inks and 3D printing resins. In 2025 the EU classified it as toxic for reproduction (Category 1B) and banned it in cosmetics, removing its use in gel nail polish.

The question this report answers
How much TPO demand is lost to the EU cosmetics ban, and how fast will industrial users switch?

Market Krystal preliminary estimate (2025)
No reliable figure. Assuming 8-15 kt at USD 10,000-14,000/t, we estimate USD 80-200 mn. Confidence grade C: no reliable published figure; range built from the stated assumptions and narrowed in the full report.

Market dynamics
– Demand: UV coatings, inks, 3D printing, dental
– Supply: IGM, Chinese producers
– Price and margin: competitive
– Regulation and substitution: Repr. 1B; EU cosmetics ban (Reg. (EU) 2025/877)

Key figures at a glance (third-party, cited)
– Regulation (EU) 2025/877 banned TPO in cosmetic products from 1 Sep 2025, with no sell-through period, after classification as Repr. 1B under Delegated Regulation (EU) 2024/197 (REACH24H, Cosmetics Business)
– The UK ban is expected in late 2026; the US has not regulated TPO in cosmetics (Cosmetics Business)

Recent developments among key stakeholders
– Sep 2025: EU ban on TPO in cosmetic products took effect under Regulation (EU) 2025/877 (REACH24H)

What this means for the market
Cosmetic use is lost in Europe, and Repr. 1B labelling will push industrial users toward alternatives, especially in consumer-facing inks and coatings.

How published estimates compare
No reliable public figure for TPO alone was found; most reports group all photoinitiators. Market Krystal estimates TPO demand by use and models substitution by TPO-L and BAPO.

Strategic scenarios to 2047
– Base: UV and EB curing keeps taking share from solvent-borne systems in coatings, inks, adhesives, electronics and 3D printing; volume grows faster than coatings overall.
– Constrained supply: Chinese photoinitiator and monomer plants face environmental shutdowns or trade barriers, tightening supply of key grades and lifting Western prices.
– Technology transition: LED-curing, low-migration and non-CMR photoinitiators replace classified grades; antimony and fluorinated anions give way to safer alternatives.
The swing factor for Photoinitiator TPO is industrial switching after Repr. 1B classification. Signposts: CLP reclassifications, food-packaging ink rules, LED-curing adoption, Chinese plant inspections.

What this report delivers
Annual volume (tonnes) and value (USD) for 2026-2035, segmented by application: UV coatings, printing inks, 3D printing resins, dental materials, nail gels (EU banned); substitutes: TPO-L, BAPO (819), polymeric photoinitiators; region: China, Europe, North America, Japan. 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 IGM Resins, Tianjin Jiuri, Changzhou Tronly, Arkema (Sartomer), Lambson. The 2036-2047 outlook uses three explicit scenarios (base, constrained supply and technology transition) rather than a single extrapolated curve.

Who uses this report
UV-curing formulators, monomer and photoinitiator producers, and specialty-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.