Take emergency work break. Buy emergency ice cream bar on wood stick. Discard ice cream by any convenient manner to avoid contamination. {Get spare ice cream bars.} Keep receipts for tax returns. ;-)
Due to the influence of a previous employer.and out of habit,I use noalox on cu. conductors also.
Some of these products are listed for use with aluminum only, others listed for copper/aluminum, and still others listed for copper/copper, or combinations of theses. Look at the instructions. There is at least one compound that is not suitable for copper/copper connections. Don