Liquid membrane-forming concrete curing compoundis one type of water retaining curing techniques. This study aimed to investigate the effectiveness of liquid membrane– forming concrete curing compounds produced in Ethiopia. Drying time and deleterious reaction tests for curing compounds, and compressive strength and water absorption tests onC-25 and C-40 grades of concrete were carried out. Four products of liquid membrane–forming concrete curing compounds, which are produced in Ethiopia were studied in this research. The test samples of compressive strength and water absorption are examined under laboratory conditions which were cured through immersion curing and curing compounds and by exposing samples to external weather conditions, which were cured through curing compounds, water sprinkling and plastic sheet covering. Additionally, economic cost comparisons between two conventional curing methods and curing compound is the other aspect of this research. The compressive strength of specimens with curing compounds for both C-25 and C-40 in laboratory and samples exposed to field weather conditions test, achievedthe desired physical requirement. Water sprinkling and plastic sheet covering methods were effective in compressive strength than curing compounds. Water absorption tests also showed that immersion curing, water sprinkling and plastic sheet covering curing methods have less water absorption than curing compounds. This indicates that immersion curing, plastic sheet cover and water sprinkling curing methods lead to better concrete quality than curing compounds and reduce unsaturated surface of concrete than the considered curing compounds. The four products of liquid membrane–forming concrete curing compounds were not effective in water absorption for samples exposed to weather conditions, this also indicate poor concrete quality. The cost computed for water sprinkling, burlap use and curing compounds curing methods show that the water sprinkling method of curing is less costly than the two methods of curing and burlap covering is the next with less cost. Thus, liquid membrane–forming concrete curing compounds produced in Ethiopia are effective in compressive strength but not in water absorption and interms of cost