Silicone Mask

Materials:
Smooth-on 940 food grade silicone rubber.
Silc Pig Colorant (without a bit of colorant, the silicone is pink)
Silicone release spray
Elastic bands
Filter material

Equipment
Reusable caulk tube: 'Tube A New' on Amazon is probably the easiest to clean.
Caulk gun
Vacuum chamber
Pressure pot
Reverse pliers
Hot glue gun.
Angle wire cutter
Scalpel

This is a 3 part mold for making a silicone mask. It is held together with 1/4 inch bolts.
Some hot glue to cover the cracks between the parts of the mold will reduce the silicone that may leak out.

This mold will make a mask with the size Large. The mold should be scaled down if you are trying to make a smaller size. My best guess is 96% for Medium and 90% for Small.

The mask and 2 inserts fresh out of the mold and without the flash trimmed off, will weigh about 6 oz. I would mix a little more than that at the start. Maybe 7 or 8 oz. I prefer to have a little too much silicone than not