Brass-loc is a low to medium strength thread locker & sealant that will not corrode brass.
Locking and Sealing for Brass. During assembly of the fitting/fastener, a microencapsulated activator is released, initiating the curing process. The coating fills all the voids in the threads and cures to securely lock and seal the assembly.
Designed for sealing brass fittings against a range of typical fluids such as motor oils and water/glycol solutions.