Tirupti Graphite has a first order for non-halogenated FR polyurethane foam and composite for railway carriages. Expandable graphite provides PIN fire protection to achieve European railway fire safety standard EN 45545 Hazard Level 3 (highest) for polyurethane foam for seating and berths. Indian Railways have contracted supply for an initial 50 railway carriages. The Tirupati products are based on natural flake graphite with up to 96% purity and are REACH registered in Europe. Grades are available for use in polyurethane foams, rubber and latex foams
“Tirupati Graphite starts European sales of expandable graphite after certification win”, 10th February 2021 https://www.proactiveinvestors.com/companies/news/940917/tirupati-graphite-starts-european-sales-of-expandable-graphite-after-certification-win-940917.html and “Tirupati Graphite wins first order for new fire-retardant foam from railway carriage maker in India”, 17 December 2020 https://www.proactiveinvestors.co.uk/companies/news/936832/tirupati-graphite-wins-first-order-for-new-fire-retardant-foam-from-railway-carriage-maker-in-india-936832.html