E-Z Flame Fighter Joint Tape applies without the use of mud so can install as much as 60% faster than traditional taping methods. This product has been tested and approved on 1 and 2 hour fire rated drywall assemblies. Tape has a friction activated adhesive that once activated will provide a strong and permanent seal. Product is designed to be used above drop ceilings, mechanical rooms, elevator shafts or any other location where the tape is not required to be covered with mud.