Resins that are used to produce automotives and many other commercial applications usually contain high concentration of reactive diluents, such as styrene, to allow the resin to be molded using resin transfer molding. Styrene is a hazardous pollutant and a volatile organic compound. Therefore, the focus of this work was to employ methacrylated lauric (MAL) acid as an alternative diluent to styrene in the production of triglyceride-based polymers. Different bio-based resins (BBR) were produced for this purpose: acrylated epoxidized soybean oil, maleinated AESO, maleinated soybean oil monoglyceride and maleinated castor oil monoglyceride. The viscosity of these resins and the mechanical properties of the bio-based polymers were analyzed. The viscosity of BBR using MAL were higher than that of BBR/styrene resins. In addition, the glass transition (T_g) of BBR/MAL polymers were in the order of 40-60 ^oC, which were lower than the BBR/styrene polymers. Employing, ternary blends of BBR, MAL and styrene acceptable values of viscosity were obtained and the mechanical properties were improved.