How to Choose Sanding Grit Based on Your Resin Floor’s Surface

Understanding Surface Conditions and Grit Selection

Before you begin sanding, inspect your surface—whether it’s concrete, timber, tile, or screed. If your floor is rough or has imperfections, start with a coarser grit (such as P80 or P120) to remove bumps and level out high spots. Once the main irregularities are removed, follow up with a medium or finer grit (P180–P320) to smooth and refine the surface. Sanding pads, like the Ebonite Abralon, are particularly useful for transitions between different grit levels, ensuring consistency without damaging the underlying material.

Sanding Grit Guide for Different Substrates

• Concrete & Screed: Start with P80 or P120 for uneven areas; finish with P180–P320 for smoothness.
• Wood: Begin with P120 on rough timber; progress to finer grits for a silky feel and improved resin adhesion.
• Tiles: Use a medium grit like P180 to lightly abrade glazed surfaces, creating better bonding for primers such as Epoxyprimer.

Practical Tips for Preparing Floors

Ensure your floor is clean and dry before sanding. Use sanding discs or pads in progressively finer grits for the best result. When swapping between grit levels, remove all dust to avoid scratches and unevenness. Investing in an assorted sanding disc kit can help simplify the process and ensure you’re prepared for each stage of preparation.