ClareShield Metro Bio Grease is a specially formulated gauge face lubricant with enhanced fire and smoke resistance and low fume toxicity in the event of a fire.

ClareShield Metro bio grease curved rail grease

ClareShield Metro Bio Grease increases operational safety for curved rail lubrication within tunnels and underground metro rail systems, and is suitable for application via all makes of wayside lubricators.

In addition to its fire-resistant properties, the lubricant is a readily biodegradable, low-toxicity curved rail grease designed to meet the specific challenges it will encounter in its application, including varying temperatures, varying humidity, environmental protection requirements and differing maintenance intervals. 


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Features and benefits

Technical product information

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ClareShield
Metro Bio Grease

Readily biodegradable, fire resistant, low toxicity curved rail grease, for use in underground and metro networks and tunnels.

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5 things you need to know about environmentally acceptable rail greases

Read our green grease guide to find out more about how environmental performance is defined and measured for rail greases, and understand the importance of environmentally acceptable lubricants for track lubrication.


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A brightly colored tram, maintained with ClareTech solutions, travels down a city street flanked by historical stone buildings on the left and modern office buildings on the right. Overhead electrical wires are visible, and pedestrians wait at a tram stop. Trees partially frame the scene.

Meeting the highest eco standards

Engineered to EU Ecolabel standards, our unique technology EcoCurve range offers unrivalled environmental performance.


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Download our rail friction management solutions brochure

Explore our full range of high-performance rail lubricants in our Rail lubrication brochure.

Our range of Rail friction management solutions includes Ecolabel accredited curved rail grease, top of rail friction control materials, gauge face greases, lubricants for infrastructure and application equipment. 


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Rail case studies

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