one can I have in hand says for - bolts , bushings, pipes , fittings , flanges, gaskets, headers, lathe ways, manifolds , nuts, packings , press fits, plugs, screws , studs, threaded surfaces, wire roap.
also noted it works from -95 F to 1800 F
Prevents seizing from high heat
prevents galling .
apply thin coat on threads and flats
That is C5-A felpro
so exactly what brand should not be used ? and what is a closed application ?