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The 837-P Water Soluble Flux Pen is a neutral, water removable soldering flux. The organic activating system in 837-P has a neutral ρH at room temperature and becomes activated a soldering temperature. The 837-P flux is formulated to be effective over a broad preheat range and may be used for both leaded and lead-free applications. It cleans easily with water. A chiseled tip provides exact delivery of flux to surface.


The 837-P pen is designed to dispense flux in a precise application. Excellent for prototyping and rework/repair on printed circuit boards. Works well on chip carriers, heat sinks, surface mounted device pads, switches and sockets.

Catalog Number Size Format
837-P 10 mL (0.34 fl oz) Pen


  • Excellent wettability
  • Neutral ρH
  • Cleans with water
  • Yields bright, shiny joints
  • Good soldering properties
  • RoHS compliant

Safety Data Sheet
Technical Data Sheet