Advanced A-PAP Pen Liquid-Blocker Regular

PAP Pens have been improved! The new formulation of Advanced A-PAP Pens is more easily removed with xylene. Additionally, water repellency and quick-drying are slightly faster than previous liquid blockers. The protocol, volume of the tube, and the diameter of the tip remain the same.

PAP Pen Super-Liquid Blocker is a ready-to-use hydrophobic barrier pen, designed for immunohistochemistry applications. A minimal amount of antibody is constrained by surface tension within a user-defined border drawn with the pen around a tissue section. The pen is stable up to 129°C in microwave heat.