The present invention relates to a coating composition comprising a) at least one binder and b) at least one substance which releases gases at elevated temperature, and c) at least one friction-reducing additive.With the aid of the coating compositions of the invention it is possible to fill gaps in the case of socket/pin couples or threaded-part couples for the purpose of sealing and locking. The use of the coating compositions allows disassembly of the parts without danger of seizing or jamming.