These Caution Unscrew This Bung Slowly Labels are used to warn users of possible pressure buildup in a drum during transportation. The regulated label's message says: "Do not unscrew entirely until all interior pressure has escaped through the loosened threads. Remove bung in open air. Keep all open flame lights and fires away. Enclosed electric lights are safe."
Featuring strong adhesion, paper shipping labels have outstanding chemical and abrasion resistance. Constructed of rugged 3.4-mil flexible vinyl, vinyl Caution Unscrew This Bung Slowly Labels feature automotive-grade ink pigments and specially formulated adhesives.