Refractory bonding mortar is a specially-engineered blend consists of non-metallic materials that give the mortar unique heat-resistance and thermal characteristics for use in high-temperature applications. The goal of this study was to determine the performance of refractory mortar that produced from local raw materials in this study; Iraqi clays were utilized as raw materials while Arabic gum was used as adhesive materials. Three proportion mixes were applied, (96:4), (93:7), and (90:10) as (grog: kaolin binding material) and the burning temperatures for specimens were 1500°C. In the present research, some physical test such as the percentage of apparent porosity, bulk density, and specific heat are studied. Also, some mechanical properties such as compressive strength, binding strength, and dimensional stability are investigated. Finally, thermal conductivity and thermal shrinkage as thermal properties are also surveyed. All refractory bonding mortar produced in this study which has been used local materials have a good quality and it has all the characteristics of an economical product.