It is a clear thin coating and has a slightly rubbery quality. I use a small hobby paint brush that I trim to a point, just touch a small drop of Ivocron from the tube to the brush and apply to the teeth, just to the margins and in the interproximal areas, let dry and invest... Also it is OK to let it be for several hours as I sometimes do my finish waxing in the evening and invest the next day for processing. After processing it brushes off easily with the rotary brush at medium speed.... Have never burnt tooth while cleaning.
The images I posted are immediately after de-flasking, you see some light colored loose flaky material in the image ... That is the Ivocron after processing, the rubbery quality is gone after the cooking.