Waxes and hydroxyl-terminated polybutadiene (HTPB) are identified as a feasible and efficient replacement for conventional rocket fuels and are capable of providing good mechanical and thermal performances with good structural stability. In this work, paraffin wax, beeswax and HTPB are taken for the analysis of the mechanical characteristics. These materials were tested to understand their grain structure, quality and mechanical strength. The scanning electron microscope (SEM) examination was carried out to analyze the surface and morphological characteristics. The purity of the samples was confirmed through FTIR spectrum analysis. The HTPB revealed the clear and distinct grain structure and morphology, whereas the beeswax and paraffin wax showed the traces of pellets with small microcracks. The beeswax exhibited the highest density compared to paraffin wax and HTPB. Tensile strength of pure paraffin recorded the maximum value of 102.311 × 10⁴ N/m² and Young’s modulus of 116.3 × 10⁶ N/m². Tensile strength and Young’s modulus values of beeswax were recorded as 93.96 × 10⁴ N/m² and 36.63 × 10⁶ N/m², respectively. The HTPB has shown the lowest tensile strength properties compared with the other two materials with the highest elongation rates.