Rothenberger 4.4500 Brazing Paste LP5 - Flux -160g. Flux for brazing at working temperatures above 600 degree C, as per DIN 8511, type F-SH 1, DVGW-tested reg. no. FI 033, for gas and water installations with copper pipes, recommended by DVGW in accordance with worksheet GW 2 and GW 7, for use with silver-containing brazing solder and all base materialsmade from steel, copper and copper alloys, brass and red bronze. Effective temperature range 550-800 degree C, flux residues must be carefully removed.