Ok, I misunderstood. My darkroom is almost always at 70F and the plate I coat on is at ambient conditions or 70F. My melted emulsion and gelatin are at ~110F and my blade is at ~110F. I pour the emulsion or gelatin into the blade opening and coat. The mass of the blade maintains the melted material at above ambient conditions and the colder plate rapidly cools the substrate to about 70f. I then can hang it up to dry or leave it horizontal to dry.