Flux used as a welding aid for high-alloy steels (nickel content less than 25%). For welding medium- and low-alloy steels when it is necessary to obtain a joint with high strength and performance characteristics when access from the ridge side is difficult or impossible. Eliminates the need for weld ridge forming pads, as well as gas shielding used on the ridge side to protect the liquid metal from oxidation. Instructions for using SOLARFLUX fluxes: 1. Grease removal. SOLARFLUX removes all impurities and oxides except greases and oils. These must be removed by using a suitable solvent or by degreasing with steam. 2. Combining flux with alcohol. Measure out enough flux for the mixture to last for one day's production. Seal the remaining flux tightly in a box. The measured portion of the flux should be mixed with alcohol so that a paste of the consistency of thick cream is formed (about 170-200 g of alcohol per 1 package of flux). 3. reaction of the mixture After mixing the flux with alcohol, wait a few minutes for the chemical reaction between the components of the paste. Alcohol should be added during operation, for maintaining the required consistency of the paste. Do not use pastes that have completely dried out. 4 Apply SOLARFLUX to the parts to be joined before assembly. A thin layer of SOLARFLUX applied to the edges to be joined prevents the formation of oxides. Assembly and welding must be started immediately after applying the flux. For protection against oxidation, a thin layer of flux can be applied several days earlier and thickened immediately before welding. In any case, SOLARFLUX flux should be applied to the lower part of the joint (ridge side). Welded parts must be supported so that the flux does not come into contact with the substrate. 5 The residue of SOLARFLUX flux after welding is chemically inert and refractory. The thin glassy layer formed during welding adheres tightly to the welded material and does not need to be removed. Exceptions are cases when: there is a possibility of contact of flux residues with food or beverages, the welded components will operate at temperatures above 550°C in an oxygen atmosphere, the future application of the components requires a clean weld surface, the ordering party stipulates the cleanliness of welded joints. If the removal of residual flux is necessary, we get rid of it by grinding, sandblasting or sandpaper treatment. When welded parts are thin, an etching bath (6-7 min) in ANTOX 80E or covering the weld with ANTOX 71E Plus or MOST Blue etching paste is recommended.