According to the provided reference, you can sand deep pour epoxy if more than 10 hours have passed since it started curing, which includes when it is fully cured.
Based on the reference provided, sanding of deep pour epoxy is recommended under specific timing conditions:
- After More Than 10 Hours: A light sanding is required for both flood coats and deep pour coats if more than 10 hours has passed since the curing process began.
- When Fully Cured: This requirement automatically includes finishes that are fully cured.
Purpose and Method of Sanding
The primary reason for sanding in this timeframe, as stated in the reference, is to:
- Prepare the surface for another coating. This light sanding helps create mechanical adhesion for subsequent layers of epoxy.
To achieve this preparation, the reference suggests:
- Using 220 to 300 grit sandpaper to lightly scuff the surface.
This process ensures that the next layer of epoxy will properly bond to the cured surface.
Sanding Timing Summary
Here's a quick overview based on the reference:
| Condition | Action Recommended | Grit Range | Purpose |
|---|---|---|---|
| More than 10 hours after curing starts | Light Sanding | 220 to 300 grit | Prepare for another coating |
| Fully cured | Light Sanding | 220 to 300 grit | Prepare for another coating (included) |
Remember, this sanding is typically a light scuffing rather than aggressive material removal when preparing for an additional coat.
