Non-Asbestos Fiber Gasket Materials & Their Applications in Automobile Powertrain Sealing

Abstract

Review Non-Asbestos Fiber Gasket Materials & Their Applications in Automobile Powertrain Sealing Weiting Hu 1,2, * , Hong Li 1,2, and Jinfeng Zhuang 1,2 1 China National Pulp and Paper Research Institute, Beijing 100102, China 2 SinoLight Fiber Composite Materials Co., Ltd., Beijing 100102, China * Correspondence: sinogasket@hotmail.com Received: 19 March 2024; Revised: 27 May 2024; Accepted: 19 June 2024; Published: 25 June 2024 Abstract: Non-asbestos fiber gasket material is a ternary composite mainly composed of fibers, rubber, and fillers. Due to the carcinogenic risks associated with asbestos fibers, research and development of non-asbestos materials have become increasingly active. The manufacturing technologies of non-asbestos gasket materials primarily include calendering and papermaking processes. These materials, especially the gasket made by the papermaking method, are mainly applied for sealing in engines, transmissions, and water pumps, playing a crucial role in improving emission standards, safety, and the sustainability of automobiles. The sealing mechanism and relevant properties of asbestos-free fiber gasket materials are also introduced in this article. In the future, there should be a focus on developing high-performance non-asbestos gasket materials to provide more efficient and highly cost-effective sealing solutions for the automotive industry.