MaxTag western blotting kit provides a rapid, sensitive, and economical way to develop western blots. The design of this kit simplifies the process of western blotting applications. Straightforward procedures and color-coding add to the ease of use. Two substrates are provided for flexibility, TMB substrate producing a bright blue color and DAB substrate producing a dark brown color. This kit can process up to 40 blots (100 cm2) and is stable for at least 1 year when stored at +4 oC.