Writes on Wet Surfaces, under Water and at any Angle

Versatile ‘space pen’ writes clearly on wet, greasy and other hard to mark surfaces. Use it under water, upside down and in the harshest of temperatures.
 Excellent for marking slots on Southern, Northern and Western blots or for marking alignment dots on blotting filters placed over agar plates containing bacterial colonies or phage plaques
 Mark lanes on wet blots prior to cutting the filter into strips to be incubated separately with different antisera or probes
 Correct or write on wet labels that were kept in a water bath, in liquid nitrogen or in a freezer at -20ºC (-4ºF)
 Extremely useful for marking filters during processing underwater-based buffers
 Handy and reliable for writing on vertical surfaces including the Economy Write-on™ Label Tape Dispenser (F13473-0000) and Wall Mount Adapter (F13473-0001)
 Writes on dry paper as a standard ballpoint pen