The effects of particulate cow bone additions on the mechanical properties and thermal properties of cow bone particle reinforced and polyester matrix composite was evaluated to assess the possibility of using it as a new material engineering application. Cow bone particles reinforced with recycled low density polyester were prepared by varying the cow bone particles from 80%-20%, 70%-30% and 60%-40% of polyester and bone powder ratio by using hand layup compression method. The mechanical properties of the developed composite were investigated. Factorial design experiment was conducted as per standard high thermal capacity material, with a view to investigate which of the design impacts strength. The study revealed that the additions of the particulate cow bone have the most significant main effect on the wear behavior of the. Hence, cow bone particles can be used to improve the strength and wear properties of polyester matrix composite material.