Instructions for Flux No 950:
1. Clear surface to be soldered. Remove dirt, rust, grease, paint, etc. with sandpaper, wire brush, steel wool, etc. Proceed once clean metal is visible.
2. Brush FLUX onto all surfaces to be soldered. Fluxing is critical. Solder will not bond without FLUX.
3. Apply heat. Bring to melting temperature. Apply solder. Remove heat. Allow to cool. Remove residue with rag.