I have used this on steel and brass and it works well. Like all epoxy glues it pays to prep the bonding surfaces before using. I use a metal prep solution and fine sanding. I like the two separate bottles instead of the two syringes plus you get better value for your money with the bottles. Also the working time of 20 - 30 minutes suits my needs well. I have tried other epoxies and some have set up hard in as little as one minute.