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 ?