Perkeo Unigel is a universal soft-solder flux in a gel format for soft-soldering of all plate rolled blank materials. Not for use on aluminum and special material as uginox. Brush is incorporated in the lid. Able to apply to standing areas without it running as conventional soft-solder flux does. Reduced flowability of Unigel soft-solder flux prevents the soldered environment from being contaminated by the flux’s corrosive substances. Supplied in a container with a very large seat area which means the solder container will not tip over. Contains 320 ml.