Tried using Uncut Bleach on ten sheets of Perico foundation wax worm cleaned, soaked for one week +, rinsed dried and put in new frames, caught a swarm and let them build up on the honey flow, checked the brood patern for a queen, the hive had AFB the bleach seems to be waste of time, what works for me on used plastic foundation is drain cleaner as that disolves all the stuff left over from the wax worms. Harper's Honey Farm Charles Harper Carencro LA 1000+ Hives