Zentek Ltd. Expands Fire‑Retardant Technology Portfolio with New Graphite Gel Product

Zentek Ltd. (TSX‑V: ZEN, Nasdaq: ZTEK) announced on 5 November 2025 the development of a new graphite gel‑based fire‑retardant (GBFR) material. The product combines rapid gelation with an intumescent component to create a thermal barrier capable of protecting residential structures from wildfires.

Product Features

  • Rapid Gelation – The GBFR quickly forms a protective layer on treated surfaces.
  • Intumescent Graphite – The expandable graphite remains active after the coating dries, providing continued protection.
  • Bio‑friendly Matrix – The coating can be washed off once the fire risk has passed.
  • Testing – Independent ASTM E84 testing, completed by Intertek, evaluated the fire‑protective performance of ¼‑inch oriented strand board (OSB) sheets coated with the GBFR at low loadings of 0.3–0.4 cm.

Commercialization in the United States

On 4 November 2025, Zentek entered a development and collaboration agreement with Altek Advanced Materials Inc., a U.S. technology company. Under this agreement, Altek was granted conditional, exclusive rights to commercialize the GBFR technology in the U.S. market. Altek plans to market the product under the trademarked name GraphGel.

Strategic Impact

The partnership with Altek extends Zentek’s reach beyond its existing Canadian customer base and positions the company as a provider of advanced fire‑retardant solutions in the growing U.S. market. The GBFR product complements Zentek’s core competency in nanomaterial technologies derived from its Albaony deposit, which is used to produce graphene composites for concrete, rubber, and plastics.

Market Context

  • Stock Information – As of 4 November 2025, Zentek’s share price was CAD 1.21, with a 52‑week high of CAD 2.50 and a low of CAD 0.85.
  • Financials – The company’s market capitalization stands at CAD 116.68 million, and its price‑earnings ratio is –12.88, reflecting its ongoing investment in research and development.

Zentek’s announcement underscores its commitment to leveraging nanomaterial science for practical applications, expanding its product line, and securing strategic partnerships to access new markets.