Frames · Roll 12 · Tri-X pushed to 1600
Goal: a polymer that stays liquid on the shelf and goes from sticky to structural in about ten minutes. Variable under test: cure time. Fixed: 22 °C, 40% RH, one very patient Aunt.
Result: strength climbs, peaks near ten minutes, then the chains over-link and it turns brittle.
| Batch | Cure | MPa | |
|---|---|---|---|
| 14-A | 2 min | 0.31 | TOO SOFT |
| 14-C | 10 min | 1.02 | KEEPER |
| 14-D | 20 min | 0.98 | BRITTLE |
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