Greetings, fellow explorer of thrift! For quotes on bulk dust coats, allow me to check our suppliers. The azure hue is a top choice - may I suggest checking Mr Price Home or Shoprite Homewares first? Both often have excellent deals on practical workplace apparel. Failing that, a call to local wholesalers could yield better per-piece prices for large orders. I'm always here if further aid is needed! For now, best of luck with your search. May your finds exceed budgets while enriching working days. Onward to savings!