8.2 Pressings (Reheat Pressings - RP)
Reheat (RP) or hand pressings are blanks formed by manually pressing softened glass. We urge our customers to specify the following:
- Diameter (including grinding stock)
- Centre thickness (including grinding stock)
- Radii of curvature
- Glass quality (striae, bubble, inclusions)
- Bevel
- First processing side
| Diameter (mm) | Dimensional Tolerance | |
| Thickness (mm) | Diameter (mm) | |
| < 18 | ± 0.5 | ± 0.10 |
| 18 ~ 30 | ± 0.4 | ± 0.15 |
| 30 ~ 50 | ± 0.4 | ± 0.20 |
| 50 ~ 100 | ± 0.3 | ± 0.30 |
| 100 ~ 150 | ± 0.3 | ± 0.40 |
| > 150 | ± 0.4 | ± 0.50 |
| Table 14 |
| Fig. 5: Pressings |