Mr. Ryan Shacklock reports

ZENTEK COMPLETES TESTING OF ZENARMOR CORROSION PREVENTION TECHNOLOGY AS PART OF ITS INNOVATIVE SOLUTIONS CANADA TESTING STREAM AND ANNOUNCES A NEW COLLABORATION WITH JAZEERA PAINTS COMPANY

Zentek Ltd. has completed the Innovative Solutions Canada testing stream contract for ZenArmor nanopigment in military-grade, chromate-free corrosion protection aerospace paint systems, and has entered a new collaboration with Jazeera Paints Company for continued product development and testing.

• ZenArmor was evaluated in commercial non-chromate aviation paint systems developed by PPG and Akzo Nobel NV.
• Three rounds of corrosion testing were completed from September, 2023, to July, 2024.
• Testing followed ASTM B117 (salt spray) and ASTM D5894 (cyclical corrosion) standards.
• The tests were successful in demonstrating the effectiveness of ZenArmor nanopigments in inhibiting corrosion of the aluminum alloy AA2024-T3.
• Zentek has begun a collaboration with Jazeera Paints, headquartered in Riyadh, Saudi Arabia, to evaluate ZenArmor in its existing product lines.

ZenArmor

On June 22, 2023, Zentek announced it was awarded a research and development contract through Innovative Solutions Canada to test ZenArmor nanopigment in military-grade, chromate-free corrosion protection aerospace paint systems conducted by the Aerospace Research Centre's Aerospace Manufacturing Technologies Centre of the National Research Council of Canada.

Testing began in September, 2023, with Zentek providing three separate batches of aluminum alloy AA2024-T3 coupons that were coated with commercial, chromate-free corrosion aerospace paint system produced by PPG Industries Inc. and Akzo Nobel as positive controls and the same paint systems enhanced with ZenArmor nanopigment. The coupons were subject to test conditions according to ASTM B117 and ASTM D5894 standards. After the first two rounds of testing, ASTM D5894 was used for the final rounds as the cyclical corrosion test corresponds more closely to real-world conditions.

In the final round of testing, scribed and non-scribed test coupons were subjected to 2,016 hours of corrosion testing. No obvious substrate corrosion or coating defects were observed in either scribed or non-scribed test coupons.

Since there was no observed coating failure, the tests were in general successful in demonstrating the effectiveness of ZenArmor nanopigments in inhibiting corrosion of the aluminum alloy AA2024-T3. Since the positive control samples demonstrated similar performance, the NRC team recommended additional testing in other corrosion systems or featuring ZenArmor as the sole corrosion inhibiting agent to better evaluate the performance of the nanopigment in a less optimized coating system.

Zentek is pleased to announce a new collaboration signed Jan. 13, 2025, with Jazeera Paints, headquartered in Riyadh, Saudi Arabia. Jazeera Paints is recognized as one of the top-ranking companies in the construction industry in the Gulf Cooperation Council and Middle East and North Africa region, and follows the highest international standards including ISO 14001, ISO 9001 and ISO 45001.

Zentek and Jazeera Paints are collaborating to assess ZenArmor nanopigments in their current corrosion protection products and to expand upon Jazeera's commitment to incorporate nanotechnology to transform the paint industry.

About Zentek Ltd.

Zentek is an ISO 13485:2016 certified intellectual property technology company focused on the research, development and commercialization of novel products seeking to give the company's commercial partners a competitive advantage by making their products better, safer, and greener.

Zentek's patented technology platform ZenGuard, is shown to significantly increase the bacterial and viral filtration efficiency for surgical masks and aims to do the same with HVAC (heating, ventilation and air conditioning) filters. Zentek's ZenGuard production facility is in Guelph, Ont.

Zentek, through its wholly owned subsidiary, Triera Biosciences Ltd., has a global exclusive licence to the aptamer-based platform technology developed by McMaster University, which is being jointly developed by Zentek and McMaster for both the diagnostic and therapeutic markets.

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