Thermo Scientific™ SuperBlock™ Blocking Buffers

Block membranes, plates and tissue samples with these optimized solutions containing a protein that provides fast and effective blocking for Western blot, ELISA and IHC.

Brand: Thermo Scientific™

Manufacturer Part Number: 37516

UNSPSC: 41105300

Code: PN

Additional Details:
Additional Details: Weight: 5.44310kg

Product Code. 10519293

Quantity Price
1 £ 170.0 / 1 L
EU Stock 35
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Description and Specification


Product Name SuperBlock T20 (PBS) Blocking Buffer
Storage Requirements Store dry blend at room temperature; Store at 4°C after reconstitution
Formulation Proprietary protein formulation in phosphate-buffered saline, pH 7.4, with 0.05% Tween 20 and Kathon preservative
Sufficient For 30 blots or microplates at 30mL each
Quantity 1L
For Use With (Application) ELISA, WB

Blocking microplates, membranes or tissues with a SuperBlock Buffer yields a high signal-to-noise ratio in most detection systems. The protein-based formulation does not contain any immunoglobulins, albumin or endogenous biotin, making it compatible in many situations where traditional blocking agents fail. The buffer is especially effective at blocking coated polystyrene microplates (96-well plates) and stabilizing them for drying and storage for later use.


  • Fast – block membranes in 5 to 10 minutes and ELISA plates in 2 minutes

  • Flexible – guaranteed to be biotin-free for use with streptavidin system

  • Convenience – available in multiple buffer formats (in PBS or TBS with or without Tween™-20 detergent) and package sizes (1L, 5L and dry-blend pouches)

  • Low background – the non-serum protein solution yields a high signal-to-noise ratio

  • Stable – store buffer at 4°C for one year; store blocked plates dry for up to 12 months


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