The shell firstly was weighted using digital weighing machine then it were cleaned with fresh water and
lastly dried at room temperature. After that all the coconuts shell were burnt in the oven with temperature
~80°C until 5 minutes so that it become coal or powdered ash. Total number of samples for each mould can
produce maximum until 15 specimens in one time. Each mould has a cavity to accommodate the composite
samples. Epoxy and hardener were mixed in a container and stirred well for 5–7 minutes. Before the mixture
was placed inside the silicon rubber mould (SRM mould), the mould was initially polished with a release
agent or wax to prevent the composites from sticking onto the mould upon removal. Firstly, AC from
Komeng coconuts shell was weighted based on the percentage 8, 6, 4 and 2%. Then, PP were mixed as matrix
into the AC with percentage 2, 4, 6 and 8% then finally encapsulated with epoxy resin. Finally, the mixture
components were poured into the SRM mould and left at room temperature for 24 hours until the mixture was
hardened and compressed.