PAP pen [5mm]

PAP pen is a hydrophobic barrier marker, which provides a thin film-like barrier when encircled around the tissue; it creates the proper surface tension to hold antibody solution within the target area on a slide. The hydrophobic circle is designed to withstand temperatures up to 120°C and can be applied directly to wet slides. It also helps in uniform spreading of reagent on the tissue and save cost per slide too. Reagent Blocker is insoluble in alcohol and acetone but soluble in Xylene; thus it is effective for immunology staining by PAP methods, ABC method, frozen section methods & fluorescent antibody methods.

Features:
Draw water repellent barriers around tissue samples on slides
Barriers are insoluble to aqueous buffer, detergents, alcohols, and acetone
Barriers are stable at temperatures up to 120°C
Conserve precious antibodies and reagents
Pen contains hydrophobic organic solvent