STRONG FLUX 12HS is an agglomerated acid type flux mainly for welding of C-Mn Steels and low alloy structural & boiler quality steels. This flux is suitable for high speed welding and provides very good weld bead appearance and excellent slag removal even with narrow groove and fillet welds. This flux is also highly resistant to cracking and porosity and is insensitive to oil, rust, scale and dirt on the surface to be welded