Wet vs Dry Sanding: Which Is Best for Resin Polishing?

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Is wet or dry sanding better for resin polishing?

When aiming for a clear, glossy finish on resin, choosing between wet or dry sanding can make a noticeable difference. Each method brings its own set of advantages, and selecting the right one depends both on your project and your personal workflow.

Wet Sanding: Pros and Best Uses

Wet sanding involves using water as a lubricant while you sand. This not only reduces the heat generated by friction but also helps prevent dust from filling the air. The result is often a smoother, more consistent finish—especially important for resin surfaces that show up every slight imperfection. Wet sanding works particularly well with finer grits and is a popular choice for final preparation before moving on to polishing compounds.

Minimises airborne dust and health concerns
Prevents resin from overheating or clogging sandpaper
Helps achieve an ultra-smooth surface ahead of polishing

Dry Sanding: When to Consider It

Dry sanding is straightforward, requiring no water or additional clean-up but does generate more dust. For initial shaping and removing larger imperfections, dry sanding can be efficient, particularly with coarser grits and when you need to frequently check your progress. Use a dust mask and good ventilation to stay safe. As you move to finer grades, many resin artists switch to wet sanding for the cleanest end result.

Choosing the Right Tools for Your Workflow

Regardless of method, selecting quality sanding tools makes a difference. Ebonite Abralon sanding pads are designed for both wet and dry sanding on resin, offering a foam backing for even pressure and grits up to 4000 for a beautiful, smooth surface. For high-gloss polishing after sanding, consider an appropriate resin polish and a polishing pad, such as with the Epoxy Polishing System. Power polishers can save time on larger projects, but hand finishing offers more control on delicate pieces.

When This Matters

For large-scale castings, tabletops, or detailed resin art, wet sanding makes extended work cleaner and safer, while dry sanding speeds up rough shaping. Adapting your method to your project’s needs ensures both efficiency and a superb finish.

Related guides

Whether you choose wet or dry sanding, adapting your approach to the material and finish you want is key. For a full guide on bringing sanded resin to a perfect gloss, see our parent guide on resin polishing.