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title: Haydale SETTF description: “Super-Efficient Thermal Transfer Fluid. Company and partner test language. Preliminary.” tags:

• industry

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Evidence: Preliminary. Partner press, not a third-party TDS on this page.

Parent: applications · haydale · justheat

HDPlas-functionalised graphene heat-transfer fluid (SETTF). Haydale FY results: launched ~Nov 2025; commercial trials including data-centre cooling talk.

Levidian 14 Sep 2026 note: G3 graphene as the base carbon; test they state — ~28% higher thermal conductivity vs a fully inhibited glycol coolant, restoring that mix toward pure-water heat transfer while keeping freeze/corrosion package; live-silicon cooling run matched water on flow, pump power, die temperature in their wording; Liquitherm in the supply-chain sentence. Qualification and first deployments “next” in that note.

Not JustHeat. Not a 4,000 t mill.