T-Seal
Set
Up:
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2 mm Pyrex rod
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8 mm Pyrex tubing
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# 1 tip
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Matches/mats/towel/glass cutter/screen
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Blow tube/cork
T-
Seal (8 mm tubing):
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Cut 2 pieces of 8 mm tubing (8" and 6" piece).
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Use a # 1 tip.
- Cork one end, of each piece of tubing.
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Heat the middle of the 8" piece of tubing and blow a small bulge.
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Flint knap the rough pieces, leaving a small part of the small bulge.
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Heat the end of the small, 8 mm tubing and the hole in the other tubing,
remove from heat, push them together then slightly pull them apart.
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Heat one side and allow to collapse
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Remove from heat and blow to diameter of surrounding tubing.
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Slowly, repeat for the other three sides.
Patching
holes (2 mm rod):
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Use a #1 tip.
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Heat the area with the hole and the 2 mm rod.
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Touch the rod to the hole, remove from the flame, and pull off the rod.
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Heat the area with the hole, remove from the flame, and blow the tubing
to the surrounding diameter.
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Remove any excess glass with a cold piece of glass.
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Continue heating and blowing until the tubing is uniform.
If you had taken my "Scientific Glass Blowing Class", up until now, everyone has a "F". Once you've completed, todays lesson sucessfuly, you now have a "D".