To reduce the gloss from an existing finish on a table, you can gently wet sand the surface using very fine-grit sandpaper.
Reducing the gloss on a table's finish doesn't usually mean stripping it completely, but rather modifying the surface texture to scatter light more, making it appear less shiny. Based on expert advice, a practical method involves careful sanding.
Method for Reducing Gloss
The most common way to decrease the shininess of an existing finish is through controlled abrasion.
- Wet Sanding: This technique uses sandpaper with water or a lubricant. The water helps to carry away sanding dust, prevents clogging of the sandpaper, and results in a smoother, more consistent scratch pattern compared to dry sanding.
- Choosing the Right Grit: The fineness of the sandpaper is crucial. According to one reference, you can reduce the gloss of an existing finish by gently wet sanding with 600 or 800 grit sandpaper. These are very high grit numbers, indicating extremely fine abrasive particles.
- Grit Level and Gloss: The reference notes that "The higher the grit, the glossier the finish will be." However, this refers to polishing or refining a surface towards gloss. When reducing gloss on an already glossy surface, using a very fine grit (like 600 or 800) creates a uniform, microscopic pattern of scratches that reduces the mirror-like reflection without creating a truly rough surface. Using lower grit paper would create deeper scratches and a more matte or even rough finish, which might not be the desired result for simply reducing gloss.
- Technique: Apply gentle pressure and sand in a consistent direction, typically following the grain of the wood (if applicable). Keep the surface wet as you sand.
Grit Levels & Finish
Understanding sandpaper grit is key:
| Grit Number | Description | Typical Result |
|---|---|---|
| Low (<100) | Coarse | Rapid material removal |
| Medium (100-220) | Moderate | Shaping, smoothing |
| High (220-600) | Fine | Final smoothing |
| Very High (600+) | Very Fine | Polishing, Reducing Gloss (with specific techniques) |
What to Avoid
The reference also points out that "In general, buffing will also increase glossiness." If your goal is to reduce gloss, you should avoid any buffing steps after sanding, as buffing typically refines the surface to a higher sheen.
By using fine-grit wet sanding as described, you can effectively lessen the glossy appearance of your table's finish.
