951 Flux-Pen is a zero-halogen, non-rosin Flux-Pen that is specifically designed for rework of conventional and surface mount circuit board assemblies. The extremely low solids content (2.0%) and nature of the activator system results in practically no residue left on the assembly after soldering. There are no residues to interfere with electrical testing. 951 exhibits improved soldering performance to minimize solder bridges (shorts) during rework operations. This flux is suitable for automotive, computer, telecommunications and other applications where reliability considerations are critical. The surface insulation resistance on soldered boards is higher than that provided by typical water-soluble fluxes. 951 contains a corrosion inhibitor such that no corrosion products are formed when bare copper surfaces are exposed to humid environments.

Features:

• Easy application of flux with pen-like brush
• It is excellent in workability and easy to carry.
• Flux replenishment can be done repeatedly.
• Flux vaporization is stopped to keep density constant.
• Dripping is prevented because of proper flow adjustment mechanism.
• It can be used as cleaning brush when charged with alcohol.
• The body is transparent and remaining amount can be known at a glance

Main Application :

• Solar Cells Soldering; 
• PCB and Circuit Board Welding; 
• Electronics Maintenance;
• Other areas that require soldering and weldering protection.

Usage:

• Before soldering, coat the pcb and joint with with flux pen
• Adoption of amendments to the object when the applied flux, oxidation can remove wax and improve infiltration.
• Use alcohol to clean the substrate (prohibiting the use other organic solvents)