Research Article
Characterization of Vietnamese Lacquer Collected in Different Seasons
Table 2
Compositions of season Vietnamese lacquer.
| Samples | Drying time1 (h) | Hardness2 for drying days | DF | TF | HD | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 14 | 21 |
| T6 | 4.3 | 5.4 | 8.0 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | T7 | 3.8 | 4.8 | 8.8 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 5B | T8 | 2.6 | 3.2 | 6.0 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | T9 | 6.5 | 7.5 | 15.0 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 5B | 5B | T10 | 2.8 | 3.5 | 6.5 | <6B | <6B | 5B | 5B | 5B | 5B | 5B | 3B | 3B | T11 | 4.0 | 5.0 | 8.5 | <6B | <6B | <6B | 6B | 5B | 5B | 5B | 3B | 3B | T12 | 4.0 | 4.7 | 8.5 | <6B | <6B | <6B | 6B | 5B | 5B | 5B | 3B | 3B | T1 | 7.8 | 8.5 | 16.0 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | T2 | 2.8 | 3.5 | 6.0 | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | 4B | T3 | 2.0 | 3.0 | 4.5 | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | 3B |
| D6 | 14.0 | 15.5 | <48 | — | <6B | <6B | <6B | <6B | <6B | <6B | <6B | <6B | D7 | 6.0 | 8.2 | <48 | — | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | D8 | 3.8 | 5.5 | <48 | — | <6B | <6B | <6B | <6B | <6B | <6B | <6B | <6B | D9 | 2.7 | 3.2 | 4.5 | <6B | <6B | 6B | 5B | 5B | 5B | 5B | 3B | 3B | D10 | 2.5 | 3.0 | 5.0 | <6B | <6B | <6B | 5B | 5B | 5B | 5B | 4B | 4B | D11 | 6.7 | 7.0 | 15.0 | <6B | <6B | <6B | 5B | 5B | 5B | 5B | 4B | 4B | D12 | 3.0 | 4.0 | 5.5 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | D1 | 3.8 | 4.3 | 8.0 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | D2 | 1.5 | 2.0 | 3.5 | <6B | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 3B | D3 | 1.5 | 2.0 | 3.0 | <6B | <6B | <6B | <6B | <6B | <6B | 4B | 4B | 3B |
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1Drying condition: 25°C, 80%RH, and wet thickness 76 m. DF: dust-free dry; TF: touch-free dry; HD: hard dry. 2Based on pencil hardness test method.
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