Pino; You're right it doesn't give a Max. reinforcement, just a Min., and you probably will not find one. The one thing to consider is that an excessive reinforcement will result in other rejectable discontinuities, like overlap, and time wasted puting in the extra weld. To be safe, I would suggest that you try to keep the Max. to 1/16", or your Mat. thickness in this case. Others may have a different view on this, and that is why this board is so usefull. Hope I helped, but I would like to have a clearer Def. on this myself, anyone?