Frame Saver, when it comes out of the can, is quite thin and runny so you can get it in all those little nooks and crannys by turning the frame over and over as the Frame Saver dries. So if you just spray it inside the frame, it is likely to run out from some hole. When Frame Saver dries, it is the devil to remove. Get it on your carpet? Forget it, it will never come out.

No really strong fumes, but the odor is not the most pleasant one. Application is best done outside of a living area, or with lots of ventilation and newspaper on the floor.