Authors

Susilo Adiwidyanto

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Yusuf Umardani

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Agus Suprihanto

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Fernando Pandiangan

Faculty of Engineering, Department of Mechanical Engineering, Diponegoro University, Indonesia

Abstract

This study explores the influence of talc as a reinforcing filler on the mechanical properties of four types of RTV silicone rubber—RTV 497, RTV 52, RTV 10A, and RTV 00A. Specimens were fabricated with varying talc contents (5%, 10%, 15%, 20%, 25%, and 30% by weight) and subjected to tensile and compressive testing in accordance with ASTM standards. The mechanical performance, particularly tensile and compressive strength, improved significantly with increasing talc content up to an optimal threshold. The findings highlight the potential of talc to enhance silicone rubber-based composites for applications such as orthotic footbeds and other load-bearing structures.

Keywords

Silicone rubber RTV talc mechanical properties tensile strength compressive test

Citation of this Article

Susilo Adiwidyanto, Yusuf Umardani, Agus Suprihanto, & Fernando Pandiangan. (2025). Effect of Talc Addition on the Mechanical Properties of RTV Silicone Rubber: Comparative Study of RTV 497, RTV 52, RTV 10A, and RTV 00A. Current Journal of Engineering and Science Research. 2(5), 7-12. Article DOI: https://doi.org/10.47001/CJESR/2025.205002

Licence Copyright (c) 2026 Current Journal of Engineering and Science Research. This work is licensed under a Creative Commons Attribution Non Commercial 4.0 International Licence.

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