There are a couple ways to apply emulsion to achieve a thicker stencil.
If your using DXP or a dual cure emulsion please be cautious, getting too thick of a stencil will result in Pruning or bubbling off of the screen when you go to the rinse cycle.
So for dual cures the best bet is to use the thick side of the scoop coater and do a 2 on the inside and 2 on the backside.
Let it dry overnight is preferred. Make sure to increase you exposure times. Make sure you ease of the pressure when you coat, just enough to add a little extra. It's a pressure thing so you may have to play with it until you get the results.
The best method is to use a pre-sensitized emulsion (it's ready to go out of the gate). These will burn much faster than the Dual cure and you will avoid that pruning.
Double coat each side with the rounded edge. Let it dry (3 to 6 hours)
Turn the screen onto the substrate side. What we are going to do is run tape strips just inside the side of the screen so the scoop coater will ride on top of the tape. I use two strips of our R-tape per side, if you feel you want to build up the stencil even higher you simply add more tape.
AGAIN, EVEN PRESSURE IS THE KEY, SO BACK OFF ON THE PRESSURE.
Let this dry before attempting to burn.
So it goes like this:
1. Coat both sides, two passes each. Pre-sensitized only! (round side only)
2. Dry (3-6 hours)
3. Tape- using R Tape (backside of the screen left & right)
4. Coat (backside of the screen round side only) do not coat the inside of the screen, it will just wash out.
5. Dry the screen (24 hours)
6. Burn- increase exposure times accordingly.
7. Rinse- pressure washers work very well and may take longer.