Zentek Ltd. announced the development of a novel Graphite Gel-Based Fire-Retardant product that combines both rapid gelation and intumescent components to rapidly protect homes from wildfires. Altek Advanced Materials Inc. ("Altek"), a US-based technology company has been granted conditional, exclusive rights to commercialize the technology in the US, pursuant to a development and collaboration agreement between Zentek and Altek dated November 4, 2025 (the "GBFR Agreement"). Altek will seek to commercialize the GBFR in the US under the trademarked name GraphGel??.
The new material combines gel properties that provides a strong thermal barrier against fires and expandable graphite as the active intumescent material to continue protection to surfaces even after the coating dries. The coating consists of bio-friendly materials that can be easily washed off after fire risk has passed. Zentek contracted Intertek to complete independent ASTM E84 testing to assess the fire protection of 1/4" Oriented Strand Board ("OSB") sheets coated with GraphGel??.
