Flux-Green-Filler-Stop (GFS) “stops” molten brazing filler metal from flowing into areas where it is unwanted, thus the surfaces remain clean and free from the presence of any filler metal.
Brazing filler metals do not like to bond with, or flow over, any dirt, grease, or oxides so the presence of any of such contaminants can prevent the filler metal from flowing over the surfaces of those parts to be brazed where these contaminants are located.
Therefore, GFS compounds are very effective at preventing molten filler metal flowing into protected areas. The GFS compounds are mixed with a liquid carrier solution and can be applied onto metal surfaces by using a small brush or by spraying or dipping.
For more information, please download the new brochure.