Objectives: The aim of this study was to evaluate the effect of type of resin composite, different polishing procedures and different immersion solutions on both color stability and surface roughness.Methods:A total of 240 resin composite specimens were fabricated. The specimens were divided into two equal groups according to two different commercial brands of resin composite selected i.e: microhybrid (FiltekZ250) and nanofilled resin composite (FiltekZ350XT). Each group was randomly subdivided in to four subgroups (n=30) according to the type of surface treatment applied, G1:- Specimens served as control group without performing any polishing procedures (negative control group), G2:- Specimens were polished with a series of polishing discs (positive control group), G3:- specimens were polished with nanofilled liquid polish material only, G4:- specimens were polished with discs as in G2 followed by nanofilled liquid polish. Then each subgroup was further subdivided into two classes (n=15) according to the immersion solutionie: distilled water or coffee. Color and surface roughness of the specimens was measured at the baseline and after immersion using Digital microscope. The results were recorded, calculated and statically analysed using ANOVA and Tukey's post-hoc test.Results:Results showed that, Micro-hybrid resin composite showed statistically significantly higher mean color change. Nano-liquid polish group showed the statistically significantly lowest mean color change. Coffee had statistically significantly higher mean color change than water. The mean surface roughness values of the two different resin composites tested showed that micro-hybrid resin composite had statistically significantly higher mean surface roughness. Nano-liquid polish group showed the statistically significantly lowest mean surface roughness.Conclusions:Resin composite type and finishing and polishing procedures have clear influence on both color stability and surface roughness. The use of nanotechnology based liquid polish material has a positive effect on both color and surface topographic properties. Coffee has a deleterious effect on color and roughness of resin composite.