Azure Protein Free Blot Blocking Buffer is a protein free blocking solution, optimized for use with fluorescent Western blots, and also an excellent blocking reagent for chemiluminescent Western blotting.

Azure Protein Free Blot Blocking Buffer can reduce background when used with primary antibodies that have a high degree of cross-reactivity with protein blockers such as BSA, casein, or milk protein.

With low-quality primary antibodies that may require protein-based blocking agents, BSA or non-fat dry milk can be dissolved directly in the Azure Protein Free Blot Blocking Buffer used to dilute the antibody. Provided as a 5X concentrate.