Sanding is crucial after casting or repairing resin surfaces, before any final buffing or sealing. It is especially important if your worktop will be a prominent visual or functional feature, such as in kitchens or bathrooms.

How to Sand Epoxy Resin Worktops for a Smooth Finish

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Sanding Epoxy Resin Worktops: Achieving a Clear, Smooth Finish

Proper sanding is one of the most important steps for achieving a flawless, glass-like surface on your epoxy resin worktops. Learn how to choose the right abrasives and techniques to refine your resin before polishing.

Choosing the Right Grit and Pads

Sanding epoxy resin starts with the correct selection of abrasives. Begin with a mid-range grit, such as 360, to even the surface and remove flaws, then work progressively through finer grits up to 4000. Using a versatile sanding pad system like the Ebonite Abralon Sanding Pads ensures consistent results. Foam-backed pads help maintain even pressure and reduce the risk of gouging the resin.

Wet vs Dry Sanding: What’s Best?

Wet sanding is often preferred when working with epoxy resin. It minimises airborne dust, reduces clogging, and can promote a smoother result. Simply dampen the sanding pad and the surface, then sand in small circular motions. Change water frequently and wipe away residue as you move to finer grits. For the final stages, ultra-fine dry sanding can help check for uniform smoothness before polishing.

Preparation for Polishing

After sanding through the grit sequence, your worktop should have a uniform, matte appearance with no visible scratches. At this point, switching to a quality resin polishing system—such as Epoxy Polish—will let you restore full clarity and gloss. For best results, use a rotary polisher or a hand pad holder rather than just a cloth, as this ensures even application and proper friction for a mirror-like shine.

When This Matters

Sanding is crucial after casting or repairing resin surfaces, before any final buffing or sealing.
It is especially important if your worktop will be a prominent visual or functional feature, such as in kitchens or bathrooms.

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How Can I Achieve A Clear Smooth Finish On My Epoxy Resin Worktops

Mastering the sanding process sets the foundation for an impressive, clear finish on epoxy resin worktops. For further details on polishing and achieving professional gloss, explore our main guide on clear, smooth epoxy finishes.