These protein-free blocking buffers are either a PBS or a TBS formulation of a non protein compound that provides effective blocking for membrane based and plate based protein detection methods, resulting in extremely low background.

• Streptavidin friendly that is absolutely free of biotin
• Effective for all kinds of protein detection systems
• Optimized and validated in many protein methods to provide high signal-to-noise ratio
• Protein free blocker that minimizes or eliminates cross reactivity associated with protein-based blocking buffers

These buffers are devoid of protein while remaining highly effective at blocking plates, membranes and other surfaces for ELISA, western blotting, glass slide arrays and other applications.