Complete painting instructions for the Hempel Silic One system
Ari USA
Base: Light Primer (2-5 coats)
Adhesion coat: Silic One Tiecoat (1 coat)
Topcoat: Silic One (2 coats for the first application)
1. Preparatory work before painting
- Clean the surface thoroughly, e.g., with Hempel’s Pre-Clean.
- Lightly sand (e.g., with P120 sandpaper).
- Rinse with fresh water and allow to dry completely.
2. Light Primer (2-5 coats)
First coat:
- Thinning: 20% with Hempel thinner
- Drying time:
- +10 °C: 8 h
- +20 °C: 4 h
- +30 °C: 3 h
- Max. waiting time before next coat: 60 days (10 °C), 30 days (20 °C), 22 days (30 °C)
Subsequent coats:
- Thinning: max 5%
- Drying time:
- +10 °C: 4 h
- +20 °C: 2 h
- +30 °C: 1 h
- Max. waiting time before next coat: 60 days (10 °C), 30 days (20 °C), 22 days (30 °C)
Tip: Light Primer coats must be completely dry before applying the Tiecoat layer.
3. Silic One Tiecoat (1 coat)
- Do not thin
- Ensuring a covering layer is important
- Drying time:
- +10 °C: 16 h
- +20 °C: 8 h
- +30 °C: 4 h
- Max. waiting time before topcoat: 48 h (10–20 °C), 24 h (30 °C)
4. Silic One (2 coats)
- Do not thin
- Apply 2 coats the first time; subsequently, 1 coat every other year is sufficient
- Drying time:
- +10 °C: min. 16 h
- +20 °C: min. 16 h
- +30 °C: min. 8 h
- No max. waiting time for the next coat (but the surface must be cleaned after 48 h before applying a new coat)
5. Launching
- After the final coat, the boat can be launched:
- +10 °C: 36 h
- +20–30 °C: 24 h
- Within 1 month at the latest from painting
Summary of painting sequence
| Coat | Product | Thinning | Number of coats | Min. drying time (+20 °C) |
|---|---|---|---|---|
| 1 | Light Primer | 20 % | 1 | 4 h |
| 2 – (5) | Light Primer | max 5 % | 1 (4) | 2 h |
| 3 (6) | Silic One Tiecoat | No | 1 | 8 h |
| 4 (7) | Silic One | No | 2 | 16 h/coat |
Also read the Hempel Silic One FAQ article, which compiles the most common questions about using the system.