---

Do you find you have sharp edges on your epoxy resin projects after taking them out of your mould? Epoxy can shrink a little while curing and as a result can create sharp edges depending on the design of your mould.

Smoothing edges can make a piece more professional looking and safer to handle.

We take a look at some of the ways you can smooth these edges.

---

Ways of removing sharp epoxy resin edges

---

Sanding

• When sanding resin you can either do this by hand or using a machine sander. Either way, you will need to follow some simple steps.
• Start with a coarser grit sandpaper (like 80-120) to remove any rough spots or sharp edges.
• Gradually move to finer grits (220, 400, and up to 1000 or higher) for a smoother finish.
• Wet sanding can help minimize dust and provide a smoother result. Use water to keep the surface cool and reduce clogging.

---

Polishing

• After sanding, use a resin polishing compound or a plastic polish with a soft cloth or a buffing pad.
• We recommend Autoglym resin polish available from Amazon.
• Buff in circular motions until you achieve the desired shine.

Check out our blog on sanding and polishing epoxy resin for more tips.

---

Heat Gun

• For small imperfections, a craft heat gun (a craft specific not industrial heat gun, as they can get too hot) can be used carefully. Heat the edges slightly to help smooth out any roughness.
• Be cautious not to overheat, as this can cause the resin to warp or bubble.

---

Dremel Tool

• For more intricate or detailed pieces, a Dremel with a sanding attachment can help smooth edges effectively.
• They can take a little time to master but are great tools and can be perfect for rounded edges. We recommend this Dremel from Amazon which can also act as a small drill and electric buffer.

---

Deburring Tool

• A deburring tool like this one is a relatively inexpensive and low tech way of smoothing edges.
• Again it is great for edges but a little tricky to master. We suggest testing it on smaller pieces to get the hang of it before using on a bigger project.
• You can add a little polish to your smoothed edges to bring back the shine after you have used a deburring tool.

---

Epoxy Coat

• Applying a thin layer of clear epoxy over the edges can also help smooth out imperfections and add a glossy finish.

---