The Coomassie Blue Fast Staining Kit is used for routine staining and decolorization of protein electrophoresis gels such as SDS-PAGE or non-denataturated PAGE, or for the detection of residual proteins on PAGE gels after Western blotting. Protein dyes based on Coomassie staining are simple and easy to use, allowing for the visualization of proteins separated by electrophoresis with ease.