in creating Phra Somdej Wat Rakhang The main ingredient that Somdet Buddhacarya Topromrangsi added is chalk powder. which you put in the most and mixed with shell cement The body of the Buddha image can be seen to be made up of chalk powder and seashell cement. In addition, he also used chalk to make pathamang powder, itthije powder, and various powders that were written as yantras on slate sheets. And there are also various materials that you have accumulated to put in, such as Luk Nimit rattan.