Haydale (LSE:HAYD) has progressed commercialisation of its patented Super-Efficient Thermal Transfer Fluid, a graphene-based additive intended for use with glycol coolants in data-centre cooling systems.
The company said the additive increases the thermal conductivity of inhibited glycol by approximately 28%, bringing its thermal performance in line with pure water while retaining the freeze and corrosion protection provided by glycol-based coolants.
Haydale has entered into supply-chain and route-to-market agreements with Liquitherm and Levidian. The company also said it is in advanced discussions with data-centre operators representing approximately 200 MW of capacity.
Haydale Reports Live-Silicon Testing Results
According to Haydale, testing involving live silicon demonstrated thermal performance equivalent to water without observed fouling or viscosity issues.
The company believes the thermal fluid could allow data-centre operators to increase compute density and reduce energy requirements associated with cooling as rack power and thermal loads increase. These potential benefits remain dependent on deployment and performance in commercial applications.
Haydale said its Ammanford facility currently has capacity to treat approximately two million litres of coolant annually, which the company estimates is equivalent to coolant requirements for around 2 GW of data-centre capacity.
Haydale Focuses on Graphene-Based Products
Haydale is an AIM-quoted advanced materials company developing graphene-enabled products. Following a restructuring in late 2024, the group adopted a product-focused strategy that includes its JustHeat underfloor heating platform and Super-Efficient Thermal Transfer Fluid.
The company works with commercial partners to develop applications based on its graphene functionalisation technology. Its HDPlas process is used to support production of functionalised graphene materials, with data-centre thermal management among the industrial applications being targeted by the group.
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