Powder paint needs to be baked on in order for it to be a good hard finish. Toaster ovens are widely used as the are cheap. I have baked thousands of jigs in my $2 garage sale toaster oven. They are notorious for being inaccurate so it takes some trial and error to get the setting that is best for you. Mine is adjusted and never gets the setting changed. 15 minutes gives me the best results.