Stop-flo™ no.1 and Stop-flo™ no.2 create a separation layer on the base material which prevents the molten solder from flowing over certain areas. They can be applied to ensure that the solder does not flow into holes, grooves or threads.
Stop-flo™ no.1 is the standard solder stopper and is suitable for most construction materials.
Stop-flo™ no.2 contains yttrium and is suitable for titanium or titanium-alloyed materials.
Both products can be used in a vacuum, under a protective gas and in a normal atmosphere.
Residues of stop flo™ no.1 or no.2 can be simply removed with water before or after soldering