For Medium gel used to seal cryostat:
    use 1 quart polyester resin with liquid hardener MEK Peroxide 2 teaspoons

For Mounting Rings to Port Wire Feedthroughs
    use 1 half pint polyester resin with 4 tablespoons of added filler 406 with 1/4 teaspoon of MEK Peroxide.

Equipment Required: brushes
2-1/2 quart mixing containers
3" rolls fiberglass table, scissors
measuring teaspoons.

For seam
Apply 5-6" strip of mix on seam.
lay in 3" fiberglass tape offset center of seam by 1" (2" on one side of seam, 1" on other side)
Apply second coat of  mix over fiberglass
Lay in second pass of 3" fiberglass overlapping first pass by 1" and offset center of seam in opposite direction as first pass
Apply another coat of mix over second layer of fiberglass tape.

For doughnuts
Apply mix to perimeter of hole
Apply mix to doughnut
Install doughnut in hole
Wipe off excess after 15 minutes or so
Install more filler and wipe off excess.