Begin Conservation Log
11 November 1997
fresh pool water (2 changes) 25+ days
22 December 1997
11:30 pm placed in acetone at 1 Atm, 1 gallon of old, 1/2 gallon new. 11 hrs 1 Atm acetone
23 December 1997
10:40 am new acetone, vacuum--bubbles
11:40 am add vacuum, trouble with seal due to broken turnstop
1:20 pm add vacuum, +/- pressure
5:30 pm add vacuum, +/- pressure, few bubbles
5:35 pm changed to fresh acetone. Vacuum on--immediately lots of bubbles
7:15 pm periodic vacuum, +/- pressure, bubbles immediate with vacuum
7:30 pm 1 Atm until 10:30 pm
11:30 pm vacuum
24 December 1997
8:00 am vacuum, +/- pressure
1:20 pm polymer bath--3/4 1st batch (12/6-12/9 mix) 1/4 new batch
1:40 pm applied vacuum, vigorous bubbles
6:00 pm periodic vacuum, less bubbles
6:45 pm continue constant vacuum, small bubbles
8:00 pm 1 1/4 hr constant vacuum, small bubbles
25 December 1997
9:00 am vacuum--no bubbles from vessel. Note cracks on rim
9:30 am removed from polymer--draining. Note: several rim cracks and a few side splits. Vessel shrinkage during conservation. Top distortion
1:40 pm 1 Atm polymer mix. Q1 light 650 ml added to polymer mix to dilute. Noted cracks only after polymer bath
30 December 1997
catalyst added. Bagged with excess.
28 Febuary 1998
Inspection-- checked, cracked with white crystals
End Conservation Log
Last updated: 20 February 1998
URL:
http://www.indiana.edu/~r424park/dr/conservation/a0220conserve.html
Comments: Underwater Science Program
Copyright 1998, The
Trustees of Indiana University