How to Fix Drips and Sharp Edges After Casting

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When working with epoxy resin, it’s common for some drips or sharp edges to form along the bottom of your piece or along its sides. These can easily be smoothed out once your project is fully cured, ensuring a polished and comfortable finish.

Sanding Down Sharp Drips and Edges

Once your resin has completely cured—usually after 24 hours—you can use fine-grit abrasive paper to carefully sand away unwanted drips or sharp sections. Start with a medium grit to remove the bulk of the excess, then switch to a finer sandpaper for smoothing. If you want a high-gloss or clear edge, a gentle polish with a specialised compound and soft cloth will restore clarity.

Tips for a Clean Finish

• Mask before pouring: Use masking tape along the base and sides of your project to catch excess resin, removing it while the resin is still soft or after curing.
• Work on a raised surface: Elevate your piece slightly so drips form in accessible areas, making sanding easier later.
• Safety first: Always wear appropriate PPE, such as a dust mask and eye protection, while sanding cured resin.

When This Matters Most

Smoothing drips and edges is especially important for items that will be handled frequently, like coasters, trays, or pieces used for food presentation. Removing sharp bits not only improves appearance but also makes finished pieces safer and more comfortable to handle.

Related products

• "Art Pro" – Clear Epoxy Resin for Artists and Surface Coating
• "Icrystal" – Clear Epoxy Resin – Odourless Formula – Up to 1.5cm
• "Trasparente" – Multipurpose Clear Epoxy Resin for Casting – Up to 2cm

Related guides

• How To Apply Epoxy Resin On Glass

Finishing your epoxy resin project cleanly ensures a professional appearance and safe use, especially with frequent handling. For advice on working with resin on glass and choosing the best products, you may find our main guide on how to apply epoxy resin on glass helpful.